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Printrbot Talk Forum • View topic - Simple-300mm Y axis, No sag!

Simple-300mm Y axis, No sag!

Talk about modifications to the printer

Re: Simple-300mm Y axis, No sag!

Postby Skrotus » 2014-Apr-Sun-23-Apr

hmm my z steps are 2030 even though I'm using the stock 1/4" acme rod, 2015.75 leaves things short for me
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Re: Simple-300mm Y axis, No sag!

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Re: Simple-300mm Y axis, No sag!

Postby ThereWillBprints » 2014-Apr-Tue-07-Apr

Went all in on Z and X axis. I am going to print some feet in order to stabilize the new size. Oddly enough Y axis is not modded yet because I simply hadn't the time or space. I also am still using the "line" but that may or may not go. Using .25" acrylic bed. New height max is 244.2mm while the new width is 330.2mm which makes it tip.
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406mm by 8mm lm rods for x and z axis
Z stabilizer bar
bearing plates printed for fabricated plexi glass print bed (8"×18")
New print are a 274 mm width × 267mm height × 101 depth (will change to 200 mm once verified and I have time)
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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-Apr-Tue-13-Apr

ThereWillBprints,
Do you have any gravity sag in the center of the acrylic?
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Re: Simple-300mm Y axis, No sag!

Postby ThereWillBprints » 2014-Apr-Tue-17-Apr

Not on 1/4" thick. Not even after drilling. It just stays there. It was even cut to size from an 18×24 sheet to 8×16. It was from Lowe's and cost $20 but I got three of them. Also with the melting point so close to pla it will kind of act like a heated bed.
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406mm by 8mm lm rods for x and z axis
Z stabilizer bar
bearing plates printed for fabricated plexi glass print bed (8"×18")
New print are a 274 mm width × 267mm height × 101 depth (will change to 200 mm once verified and I have time)
ThereWillBprints
Waiting for printbed temp...
 
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Re: Simple-300mm Y axis, No sag!

Postby Some Printr Noob » 2014-Apr-Tue-19-Apr

Beware of warping on the acrylic bed, though. My school's three Type A Machines use some thick acrylic, but they have warped after a couple months of use.

Same thing happens with some makerbots.
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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-Apr-Tue-20-Apr

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Re: Simple-300mm Y axis, No sag!

Postby ThereWillBprints » 2014-Apr-Wed-04-Apr

How thick was the plate? Mine was cut to size from 1/4" or 6.78mm thick sheet that was originally 18"×24". This ended up giving me three sheets all the same as well. Also I could clamp a metal sheet to it and it should be fine. The melting point for plexiglass is slightly higher than pla;)
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406mm by 8mm lm rods for x and z axis
Z stabilizer bar
bearing plates printed for fabricated plexi glass print bed (8"×18")
New print are a 274 mm width × 267mm height × 101 depth (will change to 200 mm once verified and I have time)
ThereWillBprints
Waiting for printbed temp...
 
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Joined: 2014-Feb-Fri-02-Feb
Reputation: 9

Re: Simple-300mm Y axis, No sag!

Postby thawkins » 2014-Apr-Wed-07-Apr

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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-Apr-Wed-09-Apr

Thawkins ,how do you like the smartrap?
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Re: Simple-300mm Y axis, No sag!

Postby REPRAP SQUAD » 2014-Apr-Wed-11-Apr

If I remember correctly thawkins doesn't have the smarttrap. Thats his own creation that is similar. How do you like the one you built pictured. I've been debating building a small printer as I am currently building a beast that is mostly aluminum plus style monster.
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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-Apr-Wed-11-Apr

I had a few setbacks,Had to put the 1st Jon Lawrence print of the 300 mm Y no sag back together.The holes for the rods are too close,I think it is my settings.I like thawkins design,that is the true definition of a simple.I have extra rods and a ramps card along with a cardboard box of parts.I have not finished one project and I want to start another.My job and my wife gets in the way of things.
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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-Apr-Wed-16-Apr

ImageUploadedByTapatalk1398893814.105027.jpgcan someone help me out?I would like to know what are your outer measurements for the smooth rods on this build?I am trying to confirm if my new calibration is correct,my newest print was 1.5 mm short.Thanks
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Re: Simple-300mm Y axis, No sag!

Postby thawkins » 2014-Apr-Wed-21-Apr

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Jonbot+
225mm x 200mm - Heated Bed
RAMPS 1.4 running Marlin 1.1.0
Full Graphic display.
-------------------------------
Zen Toolworks CNC/3d printer
230mmx360mm bed
Dual j-head hotends.
Dual heated beds.
RAMPS 1.4 running Marlin 0.98
-------------------------------
Flashforge 3d Creator Pro
Dual Extruder
220x143x150mm
Mightyboard rev e, runnimg Sailfish 7.7r1234
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Re: Simple-300mm Y axis, No sag!

Postby bres55 » 2014-May-Thu-03-May

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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-May-Thu-10-May

Bres55,how did you rotate it?
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Re: Simple-300mm Y axis, No sag!

Postby bres55 » 2014-May-Thu-13-May

I use Cura 14.03, select the model and options appear, to rotate, mirror and scale.
I moved over to Cura about a month ago, and found it to be more effective for me.
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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Thu-15-May

Hi Jon,
Think I found the cause of the weird vertical lines I mentioned in another forum. They apear to be exactly where the infill connects to the outer wall. Increase the amount of infill and the number of lines increase as the infill connects to the outer perimeters. Also the way they shift if a gap/hole or void is in the external perimeters, it would change the vertical lines with the shifted infill.
I believe it may have to do with the frame flex we discussed here. I ran a full speed test with a digital angle meter sitting on the bed. Normal, non motion angle of the bed and Y rods is 0.4 degrees slant forward. But printing, it would increase to 0.6-0.7 degrees!
To correct it, I mades a couple wedges that lock betweer the frames largest area of gap, right in front of the X motor mount. Since my printer is screwed down onto a board, this is a fixed height using the wedges and can't rock or sway (might be able to flex up?). The second thing I did was change the slicer setting of perimeters before infill. Now the infill gets laid down first and can't create those vertical lines on the perimeters of the prints.
The vertical banding along my x and y axis have all but disappeared! I really have to be looking for the flaw to even see a sign of it.
One of the added benefits of the wedges, I no longer have my front bed leveling screws tightened all the way down (where almost double what the rear ones were.) But I still have them tightened more than the rear.
I checked my z rods and the are straight compared to the z-y plate of this mod. No drop at all. The x rods are even and flat across the y depth as well (all 3 of mine). But the Y rods and the Y axis of the bed are off by exactly 0.4 degrees. (exact same you mentioned you had at the beginning of this mod). Both rods measured in front and behind the Y-Z plate and the bed all have the forward 0.4 degree slant. No noticeable play between the rods and bearings.
-1st question: Have you changed the Y-Z plate since the February version that would affect this? (using original Feb. Ver.) Is it possible to shim for this drop and where/how would I do this? It could be wear effect/stretching on the zip-ties (replacing soon). But I wanted to see if this had been adressed.
It's not listed as a problem, but I have bottomed out my front springs even though they have been upgraded to twice as long as the stock ones. Since the beds are so big and getting bigger all the time, the spring tension is really different in the front compared to the rear. It could cause shaking/vibration problems like I witnessed. I looked at a few other pics people posted of this mod and it looks like some may be tightening their front springs down while the rear is half as tight. I guess a quick fix would be to shim the bed springs to equal out the spring tension.
None of this has been shown to cause any problems, but I am always trying to improve my prints.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Thu-15-May

EddB,
At one iteration of this YZ plate my bed was not square in the XY plane, so it printed a skewed part, which lead to the drooping rods. After correcting my machine alignment, the print was square and the rods were square. My bed is only 6" deep, but I don't see any noticeable droop. My front and rear springs are very close to the same. There is no place that I know to shim to correct droopy rods. (insert little blue pill pun here)

In the part, the bearing pockets are 90 degrees exactly. The bearing pockets themselves should reduce/eliminate the stretching zip-tie issue since there is fairly little force on them. Maybe some worn bearings, or undersize rod is causing the droop?

I would measure mine more precisely, but I don't have your fancy tools. :D

Ridges gone, great! I am on another printer upgrade mission at the moment, so I will get back to that one on another date.
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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-May-Thu-17-May

Bres55,Bro I still don't know how to flip an object in Cura but WOW !!! A 7 hour print reduced to 2.5???I am super happy I don't have to waste a Sunday watching my printer.Thanks a million!!
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Re: Simple-300mm Y axis, No sag!

Postby thawkins » 2014-May-Thu-17-May

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Jonbot+
225mm x 200mm - Heated Bed
RAMPS 1.4 running Marlin 1.1.0
Full Graphic display.
-------------------------------
Zen Toolworks CNC/3d printer
230mmx360mm bed
Dual j-head hotends.
Dual heated beds.
RAMPS 1.4 running Marlin 0.98
-------------------------------
Flashforge 3d Creator Pro
Dual Extruder
220x143x150mm
Mightyboard rev e, runnimg Sailfish 7.7r1234
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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-May-Thu-18-May

Thanks,thawkins...and no your design does not look like minecraft,I have been removed from my tv and only hear the sounds of pick axes and swords with a lullaby melody that can only be drown out by my printer.
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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Thu-20-May

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Complete printable 1405 Simple https://www.youmagine.com/designs/compl ... s-edition/ or thing:425164

True Wireless Slicing and Printer Cloud+Web Server w/ AstroPrint PcDuino v2

Printrbot Simple 1405 with XL bed and
Printrbot Simple 1311 Printing ABS andPLA on kapton/borosilicate glass
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Re: Simple-300mm Y axis, No sag!

Postby ThereWillBprints » 2014-May-Fri-05-May

Does your x axis support follow the angle of the stock bed? Seems to be the only thing that comes to mind. That or there is not enough weight balanced throughout the assembly
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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Mon-19-May

Hmm, every single time I attempt to print "ExtendYFront2014AlExtruderRevC_pbSensor.STL", it fails as a giant hairball, either at the flat->vertical transition, or at ~66% point. I've tried on my Frankensimple using both Kisslicer+Repetier & Simplify3D to no avail. Likewise three separate attempts on a Makerbot Replicator 2 at work all failed (all attempts on either printer at 100% infill). The Makerbot ones were even printed off SD card, not directly from the computer, just to remove any computer issues from the equation, and still failed. And, of course, neither printer seems to have issues printing other similar-complexity stuff.

Jon, did you ever successfully print out that specific variant ("ExtendYFront2014AlExtruderRevC_pbSensor.STL")?
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Re: Simple-300mm Y axis, No sag!

Postby evanalmighty » 2014-May-Mon-21-May

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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-May-Tue-08-May

Jwiede,Is that the one with the cross supports and the sensor up front?I just got my print off yesterday,not 100% infill.Why at 100%?the supports should keep it from flexing or warping.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Tue-12-May

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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Tue-12-May

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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Tue-14-May

My reasoning behind 100% infill was as an attempt to retain stability as long as possible even after thermal degradation sets in (from hotend & extruder). I figured the more plastic in it, the longer before it got "floppy" due to heating.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Tue-14-May

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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Wed-12-May

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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Wed-14-May

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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Wed-18-May

The printed LM8UUBlock caps turned out interesting in softPLA. They might even have enough give to allow me to get a nut on them using m3-40's, though they came out like stiff rubber, a bit firmer than I expected. If not, I've got enough zip-ties to try doubling in the way suggested, and if that doesn't work well, I'll receive my m3-45mm screws tomorrow. I think I have the bearing cap situation more or less covered, but thanks for the tip w.r.t. doubling zip-ties, that one didn't occur to me.

(edit) While they do offer flex, and might help with a different alignment issue because of that flex, they don't flex enough to give an m3-40 clearance for a nut on the end. OTOH, the m3-45s should address the issue of enough clearance to attach a nut.

Speaking of clearance issues, did anyone else have a hard time getting the Y endstop positioned properly in the "side notch" as shown in the diagram? I found it near impossible to get enough clearance to screw down the small endstop screws due to the odd shape of the "notch" where the endstop sits. I considered just putting it on the same side as the pulleys, but it looked like it would get in the way of the belt on that side.

BTW, Jon, you might want to change the shape of the plastic perimeter around where the Y endstop sits, to give builders more clearance to get at the endstop screws. Alternately, you could move the Y endstop screw holes further back so that builders can directly access the screws (I had to use pliers to turn the screws, not fun, nor was getting them seated in the first place). Just a suggestion, as is I found it very difficult to get the Y endstop screwed down per the diagram.
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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Thu-13-May

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Re: Simple-300mm Y axis, No sag!

Postby zero10 » 2014-May-Thu-14-May

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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Thu-15-May

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Re: Simple-300mm Y axis, No sag!

Postby evanalmighty » 2014-May-Thu-15-May

I use 3 small zip ties connected to secure each adjacent set of bearings. I'll try to take pics of it when I get home
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Re: Simple-300mm Y axis, No sag!

Postby Some Printr Noob » 2014-May-Thu-18-May

Yeah, the screw placements are a bit of a pain for the Y axis endstop.
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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Thu-18-May

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Re: Simple-300mm Y axis, No sag!

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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Thu-21-May

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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Fri-21-May

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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Sat-13-May

Good point about the 100mm. I will add it to the "to do" list.
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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Sat-14-May

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Re: Simple-300mm Y axis, No sag!

Postby greenb » 2014-May-Sat-16-May

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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Sun-00-May

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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Sun-12-May

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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-May-Mon-20-May

BTW, as it turns out, making the bearing brackets out of softPLA seems to have notably reduced the overall noise from the bearings (compared to x-crossed zip-ties, anyway). They wind up feeling like they're made of hard rubber (matterhackers.com, 1.75mm softPLA Blue), not as much give/flex as I'd expected, but enough to apparently absorb quite a bit of the noise transfer/vibration from the bearings versus x-crossed zip-ties.

That said, I discovered that one set of bearings is nigh-all impossible to fasten with bearing brackets and screws, however (the ones closest to that same "traffic jam" that makes the Y endstop screws inaccessible). I had to use three sets with brackets and screws, and the fourth set using x-crossed zip-ties, but still much less noise than from all four using x-crossed zip-ties. Not bad for my first practical usage of flexible PLA, seems to have been a good application choice.

(edit) Had a thought on the Y endstop issue. Instead of directly mounting it to the YZ "plate", perhaps put a screw hole or two on the outside edge and then have an L-shaped bracket where the endstop attaches, and that bracket attaches to the screw holes on the outside. Such an arrangement would also allow a place to zip-tie or wrap the Y endstop wires so they aren't constantly flexing directly at the soldered terminals (my Y endstop had a wire break loose from precisely that kind of flexing).
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Re: Simple-300mm Y axis, No sag!

Postby danman78 » 2014-May-Sat-07-May

So I am starting to notice some twist in the from extruder mount. Due in part to prolonged wear and tare. There needs to be more surface area of the ROD in contact with the extruder mount. I really think this is where that twist is coming from... even adding the ROD clams might help.... How do yo do that you ask...?? there is not enough room you ask...

EUREKA!!! JON, take a look at how the extruder mounts on the Simple Metal!!! If we rotate the extruder motor 90 degrees we cold get the top and bottom rods the same length... perhaps building in clamps to both ends... rear and front...I would imagine that putting clamps on both ends is the best all round solution to any twist. Also we can increase the amount of ROD that goes into the extruder mount increasing stability. The motor cold really face the either way. i think I'm on to something.
This could also make room for the new leveler...!!...

simple-blk-extruder.png
maxresdefault.jpg

What do you think!!


??
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-May-Sun-14-May

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Re: Simple-300mm Y axis, No sag!

Postby danman78 » 2014-May-Sun-14-May

I get what your saying.. about the Y motor. I was envisioning perhaps facing the extruder towards the motor.. aslo, if you see my rig, I have a lot of other crap hanging off the extruder mount causing other potential issues with balance. In the future, I was noticing the increased size in bearings and rods too.. and was considering how that may help us with stability. I know some talk was going around about redesigning the base if so.. increasing the rod diameter and bearings like they did on the metal would obviously suit us in adding so much more build space. Thanks for all your help. hope the other project is a fun one...
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Re: Simple-300mm Y axis, No sag!

Postby EddB » 2014-May-Sun-23-May

I had a loose fitting upper rod in the front extruder Carriage. I added an open bolt clamp to the design and now it clamps to the front upper rod. It would be nice with a secod bolt and more contact to tbe upper rod. (bottom one fits so tight, i'll never get it removed.
There is a twist to the rods since the motor/extruder is off center, causing an CCW force against the rods. If the motor and extruder where placed inline with the rods, it would remove that stress. Or someone could mount a second extruder/motor opposite of tbe current setup and they would cancel out each other... Just a thought...
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Re: Simple-300mm Y axis, No sag!

Postby Dabhaidh » 2014-May-Mon-06-May

EddB could you please upload the STL file for your front extruder Carriage with the bolt clamp.

Thanks :D
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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-May-Mon-08-May

EddB, Nice clamp for the rod!Was that something you designed? I broke 2 frames trying to hammer the rods in.I gave up and krazy glued the rod to the plastic.
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Re: Simple-300mm Y axis, No sag!

Postby Some Printr Noob » 2014-May-Mon-12-May

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Re: Simple-300mm Y axis, No sag!

Postby Skrotus » 2014-May-Mon-20-May

would it be difficult to lower the extruder relative to the y arm? I bought a hexagon hotend and it's too short to reach the bed, I need it 13.5mm lower
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Re: Simple-300mm Y axis, No sag!

Postby orangefurball » 2014-May-Wed-23-May

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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-May-Thu-16-May

Finally received my proximity sensor.Can any one tell me the color code match?blue negative pin on bottom?black center pin?brown top pin?thanks!!
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Re: Simple-300mm Y axis, No sag!

Postby chase » 2014-May-Thu-20-May

Hi, will there ever be a way to mount the auto leveling probe? I would love to have it but also this mod aswell! decisions, decisions.
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Re: Simple-300mm Y axis, No sag!

Postby chase » 2014-May-Thu-20-May

also, how do the wires stretch all 300mm? do i need to extend them somehow?
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Re: Simple-300mm Y axis, No sag!

Postby orangefurball » 2014-May-Thu-22-May

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Re: Simple-300mm Y axis, No sag!

Postby REPRAP SQUAD » 2014-May-Sat-11-May

If the wiring doesn't reach the full extensions of each direction, they will have to be extended. You can either buy extension cables or solder/shrink wrap with new cabling. Just make sure you use wire that is multi strand and that it's the same or better gauge wiring.
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Re: Simple-300mm Y axis, No sag!

Postby ThereWillBprints » 2014-May-Wed-00-May

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Re: Simple-300mm Y axis, No sag!

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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-Jun-Mon-14-Jun

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Re: Simple-300mm Y axis, No sag!

Postby Munson » 2014-Jun-Thu-17-Jun

Orangefurball,I tried your suggestion.For 4 bucks it is so worth it.I have not tried with the printrboard but in ramps it fits snug.GREAT SUGGESTION.The only issue I see is the connections on the endstops are tight and the motor wires are somewhat loose unless the pins are bent.If I can solder the leads so I can have a good connection at the board than I am happy
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Re: Simple-300mm Y axis, No sag!

Postby REPRAP SQUAD » 2014-Jun-Thu-17-Jun

Most wiring will have the gauge written on the side. Typically I think most use around 22 gauge but I use about 18 gauge for the majority of my wiring. Just make sure it's multi Strand wiring. You can also look up gauge ratings by amperage.
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Re: Simple-300mm Y axis, No sag!

Postby danman78 » 2014-Jun-Fri-19-Jun

I was having the same issue with my Top rod slipping and even twisting at times. I came up with a similar solution by adding two mounting holes and building a separate part as a clamp that screws in...I am using a new material called "bridge" which is a pretty strong flexible nylon. it is too flexible to build the entire part of what is really amazing material for building things like clamps or anything that is going to be load bearing that can flex. I decided to use that as a separate part to clamp it down this allows me to add considerable force to the clamp and I have to tell you this thing does not move at all. PLA and ABS have a tendency to be a little slick this bridge material is almost more rubbery so when I clamped down it does provide more friction and then using the other materials. I considered making a triangular piece that connects to the bottom rod and the far side of the y-axis mount. The other option that I mentioned to Jon as a possible solution would be to rotate the extruder motor 90 degrees like this: melted on the metal version of the simple. This would allow the rods to be extended through like it is on the bottom.
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Re: Simple-300mm Y axis, No sag!

Postby jwiede » 2014-Jun-Wed-13-Jun

Danman78, I like the clamp design, what temp. were you using to print Bridge? Did you get a bunch of stringing? Kind of has me wondering if flexible PLA would serve a similar role.

BTW, the little heat sink by itself on top of the extruder motor is cute, reminds me of the Grinch's dog trying to haul the sleigh. ;)
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Re: Simple-300mm Y axis, No sag!

Postby Ari_Porad » 2014-Jun-Sat-17-Jun

Hey Jon, do you know when the mods will be compatible with the new simple? I can't wait to install them. Also, since I know there is a long back order, are there any measurements that I can take for you?

Thanks,
Ari
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Re: Simple-300mm Y axis, No sag!

Postby Some Printr Noob » 2014-Jun-Sun-20-Jun

The spacing between the rods on the new simple are completely different. The mods will have to be reworked for them to be compatible.
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Re: Simple-300mm Y axis, No sag!

Postby greenb » 2014-Jun-Sun-22-Jun

Image
Image
Image

The distance between the Y-axis appears to be the same, here is another picture to further illustrate this. I was trying to demonstrate that the distance between the Z-axis rods is different.

Image
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Re: Simple-300mm Y axis, No sag!

Postby Threefer3 » 2014-Jun-Sun-22-Jun

I have the new wood parts modeled which reflect the changes in rod spacing. I have a step file in the following post with all the parts assembled.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Tue-20-Jun

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Re: Simple-300mm Y axis, No sag!

Postby Bellus » 2014-Jun-Tue-20-Jun

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Re: Simple-300mm Y axis, No sag!

Postby cris11368 » 2014-Jun-Wed-11-Jun

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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Wed-11-Jun

Here is a Y plate that should fit on the 70mm Z rod spacing of the 1405 Simple. I just moved the front bearings forward 5mm, all other dimensions are the same so the existing Y design will slide right in.

Does the Y end stop really activate off the back of the extruder motor, or am I seeing something? In any case, I duplicated the switch mounting location. This PRELIMINARY version has both front and rear mounting locations available for the Y end stop. I haven't built the 1405 yet, so try at your own risk :D

ExtendYPlate1405_2014-06-18.STL
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Re: Simple-300mm Y axis, No sag!

Postby evanalmighty » 2014-Jun-Wed-12-Jun

Jon. Did you notice if the z rod location relative to the threaded rod is also different?
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Wed-12-Jun

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Re: Simple-300mm Y axis, No sag!

Postby evanalmighty » 2014-Jun-Wed-13-Jun

Awesome. Good to know. Visually it threw me off, but I never bothered to check.
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Re: Simple-300mm Y axis, No sag!

Postby Skrotus » 2014-Jun-Wed-19-Jun

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Re: Simple-300mm Y axis, No sag!

Postby Bellus » 2014-Jun-Wed-19-Jun

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Simple-300mm Y axis, No sag!

Postby Munson » 2014-Jun-Wed-20-Jun

You are moving too fast for me Jon,thanks again!!This should be moved over so it won't be confused with the old model.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Thu-07-Jun

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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Thu-13-Jun

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Re: Simple-300mm Y axis, No sag!

Postby dmaxx67 » 2014-Jun-Wed-07-Jun

Anyone got some comparison pictures between regular gt2 and double precision? I'm thinking with my new makers upgrade kit of going with the double precision.
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Re: Simple-300mm Y axis, No sag!

Postby dmaxx67 » 2014-Jun-Sun-21-Jun

New pics of modded printrbot simple. Just got autolevel going too!
Still trying to figure out what to do with mess of wires.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Mon-09-Jun

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Re: Simple-300mm Y axis, No sag!

Postby dmaxx67 » 2014-Jun-Mon-11-Jun

Marlin, its super simple to tweak.
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Mon-11-Jun

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Re: Simple-300mm Y axis, No sag!

Postby evanalmighty » 2014-Jun-Mon-12-Jun

Jon. This is the one I used: https://github.com/ErikZalm/Marlin

Auto leveling is built in, you just have to enable it in config.h
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Re: Simple-300mm Y axis, No sag!

Postby Some Printr Noob » 2014-Jun-Mon-20-Jun

Thought I posted; dunno what happened to that post.

2014 simple; Both X and Y have been working quite reliably. I have noticed that the belt wants to slip off the bearing on the Y axis when the Y is maxed out(hotend is closest to the printrboard). I've had to put spacers so that they don't fall out.

Image

Image
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Jun-Mon-20-Jun

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Re: Simple-300mm Y axis, No sag!

Postby dmaxx67 » 2014-Jun-Mon-20-Jun

Sorry Jon yea I'm using same as Evan.
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Re: Simple-300mm Y axis, No sag!

Postby Some Printr Noob » 2014-Jul-Mon-20-Jul

I've encountered some Z wobble, and I think it's probably because of my longer MCMaster-Carr threaded rod. I'm probably going to revert back to the short printrbot rod and see how things fare. Doing some more research about eliminating Z wobble, I came across this part:

http://www.thingiverse.com/thing:33053

Having a cyclone-like cutout would help a lot. I had some very minor Z ribbing problems before I upgraded my Simple. Perhaps something similar could be implemented to eliminate Z ribbing and allow for higher quality prints?
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Re: Simple-300mm Y axis, No sag!

Postby orangefurball » 2014-Jul-Tue-15-Jul

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Re: Simple-300mm Y axis, No sag!

Postby thawkins » 2014-Aug-Thu-22-Aug

@john
Can you post a summary of where the current crop of design files for the x and y mods are. I have a very very modified 2013 simple, i would like to get updated, i have the x mod, and a very early y mod. I have not been following the conversation.

Note for those without the alu extruder, there is a printable version, which if printed in ABS would probaly workout fine. It could also be easily hacked to fix other hotends.

See: http://www.thingiverse.com/thing:281015
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Aug-Mon-10-Aug

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Re: Simple-300mm Y axis, No sag!

Postby nevets » 2014-Aug-Mon-11-Aug

I just recently upgraded to the y300 double precicion and my question is how do I eactly figure out the steps needed to calibrate it properly? thanks steve
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Re: Simple-300mm Y axis, No sag!

Postby Jon Lawrence » 2014-Aug-Mon-11-Aug

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