2mm pitch GT2 Belt Clamps

A set of four GT2 belt clamps to hold the ends of your machine's belts to the extruder carriage, print bed, etc.

3D printer parts and enhancements

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Description

Here are four 2mm pitch GT2 belt clamp designs - two double ended and two single ended, with vertical and horizontal attachment holes sized to fit 6-32 screws.  The design is for 9.5 mm wide belt, but you can easily edit the rsdoc or stl files to change the height for 6mm wide belt, etc.  The horizontal-holed clamps like the design in the photo hold the smooth side of the belt 6.38 mm from the mounting surface.  You can also easily edit that distance.  The vertical-holed clamps hold the belt 2mm from the mounting surface (or turned over, flush with the surface), again, easily editable.

As you can see in the photo, the belt fits around the round post in each clamp then folds back on itself with the doubled thickness of the belt fitting tightly into the slots.  It won't slip no matter how much tension you put on the belt.

I don't know why but the 3D preview of the stl files shows dimensions incorrectly.  These parts are all 11.5 mm tall.  Some of the lengths are off, too.  Don't worry, the stl files are correct.

I printed solid in 0.2mm layers, no brim, no support.  I recommend ABS over PLA because the part can get exposed to heat in your printer and it will work better if it doesn't soften.

Materials and methods

- a little of your favorite ABS
- a 6-32 screw to hold the clamp in place

Documents

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Comments

C3f154aa6c5363bc08411d003ff06ef6?default=blank&size=40jansol added this to the JCollection01 collection ago
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8d067cda5f37882ecc53eb7aa10ef740?default=blank&size=40Miguel A. Hijar added this to the Belt collection ago
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C77901e65f83e44bda4dd249a42c7a8d?default=blank&size=40d_rogue printed this ago
Carousel thumb 20170225 171322
Printed on:
Custom
Result:
Very good.
Feedback:
Hi, wonderful design. A chamfer/fillet on the post and around the belt guides will also be beneficial for easier installation without affecting function
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Mini gold hands croppedMark Rehorst commented ago

This is not intended to be used for adjusting belt tension. Belt tension adjustment is typically done by either moving the motor mount or making the idler pulley adjustable via a sliding mount.

You could use a pair of the single ended clamps to make a tension adjuster but fixing one on the extruder carriage and the other on a screw adjustable slide.

A360349de7c1ca8052a0d98bbac72775?default=blank&size=40Marko Kukovec commented ago

How do you tighten the belt with this clamps. I can see how everything holds together but if I wan't to tighten the belt for 2 additional grooves I have to disassemble loop, realign loop and show it in again?

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4fe4d68be85f0c91889aa6686db1f48a?default=blank&size=40Dylan144GT commented ago

Cool, thanks Mark. Not sure why, but both my CAD programs are struggling with the .STL file format. Will find a way around it though. :)

Mini gold hands croppedMark Rehorst commented ago

I can't produce a .step file, but the thing is so simple you can just redraw it in whatever CAD you use. I can provide dimensions if you need them. If you want to rework it for different belt widths you can usually do that by simply editing the .STL file in almost any CAD program.

4fe4d68be85f0c91889aa6686db1f48a?default=blank&size=40Dylan144GT commented ago

Hi,

Is it possible to post a .STEP file so that it can be customized to the users requirements, ie. thinned etc.

Thanks very much!

Dylan

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Mini gold hands croppedMark Rehorst published this design ago