Fishing line stability and resistance

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Fishing line stability and resistance

Postby hcrepin » 2013-Dec-Mon-18-Dec

Actually I encounter a little problem, I broke my Y fishing line and searching a correct replacement, but, anyway, seems not very stable mounting for movment.

Anybody a suggestion for a replacement or maybe decreasing print speed?
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Fishing line stability and resistance

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Re: Fishing line stability and resistance

Postby hcrepin » 2014-Jan-Wed-06-Jan

Finally, I found the solution: replace the original wires by polyamide 1 mm lines but with longer lines that I shorten by twisting them around 40 times:

Well, sorry, site disallow me to post the pictures ...
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Re: Fishing line stability and resistance

Postby thawkins » 2014-Jan-Wed-06-Jan

hcrepin wrote:Finally, I found the solution: replace the original wires by polyamide 1 mm lines but with longer lines that I shorten by twisting them around 40 times:

Well, sorry, site disallow me to post the pictures ...


I belive the original line is this.

http://www.amazon.com/gp/product/B0084O ... UTF8&psc=1
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-------------------------------
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Re: Fishing line stability and resistance

Postby RetireeJay » 2014-Jan-Wed-10-Jan

Even newbies can post pictures. Use the "Upload Attachment" tab below the editing screen, then browse to find the picture on your computer. Upload, and then "Insert Inline"
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Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
"My next printer is..." Prusa i3 MK3
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Re: Fishing line stability and resistance

Postby hcrepin » 2014-Jan-Thu-16-Jan

Thanks, here is the picture
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Re: Fishing line stability and resistance

Postby hcrepin » 2014-Jan-Thu-17-Jan

thawkins wrote:
hcrepin wrote:Finally, I found the solution: replace the original wires by polyamide 1 mm lines but with longer lines that I shorten by twisting them around 40 times:

Well, sorry, site disallow me to post the pictures ...


I belive the original line is this.

..............


Possible but strange that mine broke so easily.
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Re: Fishing line stability and resistance

Postby thawkins » 2014-Jan-Thu-22-Jan

hcrepin wrote:
thawkins wrote:
hcrepin wrote:Finally, I found the solution: replace the original wires by polyamide 1 mm lines but with longer lines that I shorten by twisting them around 40 times:

Well, sorry, site disallow me to post the pictures ...


I belive the original line is this.

..............


Possible but strange that mine broke so easily.


If your carriage (x or y) keeps hitting the ends of its travel, or your line is loose, it will result in the sandpaper drum spinning against the line, which will fray it and it will break.
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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
-------------------------------
Photon, self designed printed printer.
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thawkins
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Re: Fishing line stability and resistance

Postby hcrepin » 2014-Feb-Sun-06-Feb

Effectively that's one of the problem, weird because, I've tuned the stop-end to avoid continue travel but nothing to stop the plate travel or maybe better configure the repetieter host configuration to work with less shocks.
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Re: Fishing line stability and resistance

Postby thawkins » 2014-Feb-Sun-09-Feb

hcrepin wrote:Effectively that's one of the problem, weird because, I've tuned the stop-end to avoid continue travel but nothing to stop the plate travel or maybe better configure the repetieter host configuration to work with less shocks.


From the photo, it looks like the line is wound wrong, starting from the left, you should run to the top of the drum, then around 3 times and back out to the tensioner on the right hand side. If it goes in the wrong direction after that, you should rotate the motor connector on the board.

Double check the endstops. You can use the m119 command sent in manual commands to show the status of the endstop switches. It should show a different status when the carruage is pushed back into the home position.

The way you have it the angle of the line from the screw holding the end of the line to the bottom of the drum is too steep, and it will create a considersble push back at the ends of travel in each direction, which may explain why your endstop is not working.
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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
-------------------------------
Photon, self designed printed printer.
User avatar
thawkins
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Posts: 1636
Joined: 2013-Aug-Sun-10-Aug
Location: Manila, Philippines
Reputation: 172

Re: Fishing line stability and resistance

Postby RetireeJay » 2014-Feb-Sun-10-Feb

Remember, the so-called "endstops" are not really endstops. They are used ONLY during a homing maneuver. At all other times the firmware on the Printrboard IGNORES the endstops.
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Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
"My next printer is..." Prusa i3 MK3
User avatar
RetireeJay
My next printer is...
 
Posts: 4931
Joined: 2013-Jan-Wed-13-Jan
Location: Greenville, SC
Reputation: 494


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