Understanding the Printrbot X Y Z directions

Hardware talk for newbies: questions, advice etc

Understanding the Printrbot X Y Z directions

Postby halley » 2013-May-Fri-18-May

http://imgur.com/a/LlU96

Printrbot Simple
Image

Printrbot Jr
Image

Printrbot LC v2 (as seen from rear)
Image

Printrbot Go
Image
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Understanding the Printrbot X Y Z directions

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Re: Understanding the Printrbot X Y Z directions

Postby RetireeJay » 2013-Jul-Wed-17-Jul

Here is a picture of the Printrbot Plus, taken from the front :D , showing the printhead at the Home (0,0,0) position of X, Y, and Z. Positive values of X, Y, and Z move away from this position, using the same orientation as shown in the previously-posted photographs.
CrPrintrbotAtHome.jpg
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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
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Re: Understanding the Printrbot X Y Z directions

Postby UnclePsycho » 2014-Nov-Sun-16-Nov

Is Home, the same for an simple Metal, as shown for the Simple?

And, do we position the hotend at Home, then turn on power?

Thanks

Scottnaka Psycho
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Re: Understanding the Printrbot X Y Z directions

Postby KDog » 2014-Nov-Sun-19-Nov

Home is the same on the metal simple as the simple. You don't have to home it before you turn it on. The home buttons in your host software will send it there. When you press home, the steppers will start moving each axis (one at a time) towards the home position. The endstops and z-sensor will stop the steppers when they get to the correct place.
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Re: Understanding the Printrbot X Y Z directions

Postby ei8htohms » 2014-Nov-Sun-19-Nov

I think home on the Metal Simple is at Y max.
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Re: Understanding the Printrbot X Y Z directions

Postby RetireeJay » 2014-Nov-Sun-20-Nov

ei8htohms wrote:I think home on the Metal Simple is at Y max.


That's true. But Y zero is still where the photographs show it to be.
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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: Understanding the Printrbot X Y Z directions

Postby UnclePsycho » 2014-Nov-Mon-17-Nov

Hmmmm
Thanks for your help.
I'llgo mess with it

I am using matter control .
Repetier didn'tseem to nwork for me ffirst time.
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Re: Understanding the Printrbot X Y Z directions

Postby UnclePsycho » 2014-Nov-Mon-17-Nov

Y zero and home are two different things ?

Where is home???
X zero
Y Max
Z zero ?????
Using Simple pic as reference.

But I got bigger problems now. The laptop don't recognize the printer now ??? It did the other day, but no it now.
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Re: Understanding the Printrbot X Y Z directions

Postby RetireeJay » 2014-Nov-Mon-17-Nov

UnclePsycho wrote:Y zero and home are two different things ?
Where is home???
X zero
Y Max
Z zero ?????
Using Simple pic as reference.


Yes, on the Simple Metal (and maybe other new Simples), you are exactly right. The "homing switches" are located at X zero, Y max, and Z zero. Sometimes the switches are called "endstops" but that is not the right description. The ONLY time the software looks at the switch status is during a homing maneuver.
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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: Understanding the Printrbot X Y Z directions

Postby UnclePsycho » 2014-Nov-Mon-17-Nov

Thanks Jay

I'm headed over to see the guy I bought the printer from. I'mhaving other issues .
But have been wondering where to start.
Your info has been very helpful.

Thank you
Scott
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Re: Understanding the Printrbot X Y Z directions

Postby kbenson0616 » 2016-May-Thu-14-May

OK. I am a newbie and I read the above post and am still confused. I have a printrbot simple. Is there a home button on the printer somewhere I haven't found? I have been trying to "home" my printer in Cura using the G28 x0 y0 z0 command. Is that right? Do I need to do that before each print?
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Re: Understanding the Printrbot X Y Z directions

Postby RetireeJay » 2016-May-Thu-15-May

The printer itself has no "home" button, but Cura does. It has an overall "home" button, and then individual buttons for X, Y, and Z. They look like little houses.

Very often, "homing" is part of the start-up routine built into each part. That's because it also includes "bed compensation" (G29...) Either way, your printer does need to be homed every time you turn it on. As long as you leave it turned on, it should remember where home is.

Just to confuse things a bit, Printrbot decided that "home" on Simples for the last year or more is at Y = maximum, not Y = 0. So the definition of "home" depends on the model and age of your 'bot. But the Location X = 0, Y = 0 is still as shown in the pictures at the top of this thread.
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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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