New SeeMeCNC Extruder

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Re: New SeeMeCNC Extruder

Postby bdring » Tue May 14, 2013 11:43 pm

I think a standard carriage would be perfect, especially if you want to try dual eventually.

My is done.

6mm blue acrylic carriage, natural ABS mounting block.

ez1.JPG
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Calibrated?

Postby bdring » Wed May 15, 2013 3:35 pm

Has anyone calibrated the steps/mm on this thing yet to save me the trouble?
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Re: New SeeMeCNC Extruder

Postby flickerfly » Wed May 15, 2013 5:43 pm

As far as calibration, not that I'm aware of. I've been stuck working the last few days due to some yucky outage issues. In other news, I'm jealous of your fabrication skills and toolset, but that's why I'm all about doing this 3D printer thing so super-thanks for sharing. :mrgreen:
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Re: New SeeMeCNC Extruder

Postby REdington » Wed May 15, 2013 10:01 pm

Hey Bart
Can you put up the STL file for the extruder mount that you made.

Thanks

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STL

Postby bdring » Wed May 15, 2013 10:18 pm

Here is my STL file. I'll post the plate later.
Attachments
ez_block.zip
(11.13 KiB) Downloaded 720 times
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Re: New SeeMeCNC Extruder

Postby tmccafferty » Sun May 19, 2013 5:04 am

Do you think there is any need for a fan blowing on the gear/shaft?
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Re: New SeeMeCNC Extruder

Postby tmccafferty » Tue May 21, 2013 2:08 pm

Any mount thoughts that cleanly integrate fan mounts for the j-head or material?
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Re: New SeeMeCNC Extruder

Postby flickerfly » Tue May 21, 2013 4:24 pm

I've been wondering if you could make the mount in such a way that the fan could be the support for the shelf on the one side or maybe just have two fans as the legs supporting the shelf with a slower speed. It isn't fully worked out in my head, but I imagine the shelf would be sit flush between the fans since the j-head would be directly attached to the extruder. Maybe the shelf would be a box with no top and bottom turned on its side. Attach the box to the carriage plate from the back of the carriage plate since you wouldn't have room to mount it from the front and the screw the fans on either side.

Another thought, if the shelf was made of metal or something, it could sync heat off the stepper and into the path of the air flowing below providing some cooling. Maybe we should try to talk bdring into creating another extrusion just for this. ;)

Do you have any ideas how you'd think it could work?

EDIT: Actually, maybe we could just slide the fans into some square tubing with spacers between them. You could even cut the pipe at an angle maybe and reorient the one fan down with some spacers and my be some elastic pulling the fans together. I'm not sure that makes sense, but I have to get back to work.
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Steps/mm

Postby bdring » Mon May 27, 2013 7:28 pm

I measured the steps per millimeter of the SeeMeCNC EzStuder at about 95.9 stes/mm

DEFAULT_AXIS_STEPS_PER_UNIT in Marlin
EXT0_STEPS_PER_MM in Repetier
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Re: New SeeMeCNC Extruder

Postby flurin » Tue Jun 04, 2013 1:30 pm

Theoretical value:

NEMA 17 (16 microsteps) : 200 * 16 = 3200 steps/rev
The "EZStruder - 70782 Drive Roller-1" has a "filament"-diameter of 11mm.

=> 3200 / (11 * 3.14) = 92.6 steps/mm
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