Connectors for 20mm MakerBeam

by siderits, published

Connectors for 20mm MakerBeam by siderits Aug 8, 2012
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20931Views 14947Downloads Found in Engineering


You can prototype almost any kind of robotic platform or experimental laboratory equipment with these connectors.

Update 9/15

  • Plexiglas holder inline, 3 variations, 2.5 mm thickness, used for walls and floors or splash screen in prototype platforms.

Update 6/23/14

  • Standard servo holders. Mount in-line, single side, dual side, 90 degree. Ideal if you want to use the maker beam as a skeleton. Indents show where to drill holes.
    Update: 2/23/2014
  • Vertical and horizontal limit switch holders for momentary button type normal open type switches.
    Update 9/22/13
  • 28ByJ-48 Small 5V stepper motor mount both front and side
  • Files named "Small Mount Front,Side,Top,Bottom respectively.
    Update 7/14/13
  • Vertical stepper mounting plate
  • Example gallery images of axis motion.
  • Kit Tamiya Ladder, Chain and Sprocket set Item #70142
  • 13 tooth gear drive sprocket and idler for Tamiya kit (see above)
    UPDATE 6/30/13 Thumbwheel parts
  • Thumb frame
  • Thumb Pinion gear
  • Thumb Hold down
  • Thumb Axle
    UPDATE 4/13: M6 pan head nut and bolt, stand off.
    UPDATE 3/13:
  • Rack for 13 tooth 12 mm pinion gear on a 3.1 Volt Allelectronics Stepper motor.
  • Added ZIP file of "Final parts.zip"
    UPDATE 2/13:
    Added Plexiglass holder
    Inspired by leitenmu at http://www.thingiverse.com/thing:47087
    Added new contours and other parts to the set.

    These connectors will allow the fabrication of almost any shape or enclosure, using the 20x20 mm MakerBean type model from dbozec ( http://www.thingiverse.com/thing:27825 ). Especially desinged to facilitate the construction of experimental laboratory equipment and platforms. The connectors are meant to be glue-"welded" to each other with ABS acetone slurry or cyanomethacrylate (crazy glue).
    With these connectors you can do end-end, corner, rail, groove, flat top or plate, sliding surface, T-pieces end to side and side to side connections, wire guides and mounting or fixation parts. You name it...


Inspired by dbozec's 20x20 mm OpenSCAD MakerBeam design.
Printed on UP!3D on "Fine" for connectors and "Fast" for Z scaled (extruded) beams.
These are some 20mm connectors.
You can Scale (extrude) the rails on the Z axis to make them longer.
The fit is snug so use a bit of rod to move the connectors in the grooves.
Parts (Scale any on Z Axis to make different lengths):
Back row Left to right: Flat top; grooved, MakerBeam
( http://www.thingiverse.com/thing:27825 ); narrow part for overlying grooved surface; Flat sliding surface; Different flat top.
Middle row: End cap; footer, flat beam; corner with hole; corner.
Front: Wire guide; end joiner, end joiner, side to side joiner; base piece; mounting piece.

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thanks for sharing such a wonderful set of structual things to make and use! Great Job!

great job , better then Lego
Thanks for sharing

Nice!!! I was looking for something like and now it seems I've found a gold mine...

I apologize for the confusion. When I modeled these parts the CAD unit was meters.
All you need to do when you print them is scale up 10x, and the parts are perfect.

I'm intrigued, and thoroughly confused. Every one of these STL's are coming out micro-sized. Is there a scaling factor somewhere I'm missing? I printed the makerbeam and it came out 20mm wide. When I print these connectors, the connector part that fits into the beam comes out <2mm.

Very cool trying to build the linear slide but can exactly figure it out? Is all parts needed in this thingy to build everything in the pics? Is stepper dual end with mounting holes.stl used for top and bottom? What partname holds the nut in the center? Thanks i'm enjoying very much!

Very, very nice job. I would like to contribute with two comments.

1- Chain and sprocket transmission induces a kind of pulse related to the chain pitch.

2- Rack and pinion transmission can achieves better performance with an evolvent profile for the pinion teeth

Thanks for sharing,

Wow...Are you making a completely printed 3d printer???? Ive been working on a design for about 4 months now but it looks like youve beat me to it...any chance youll be publishing your completed design???

Hi, I'm making a 3D printed stainer for Immunohistochemistry not a 3D printer, but if there's anything I can do to help with your project, let me know! My best, R

Sorry it took so long: "Final Parts.zip is the last file in "Download This Thing" section.

Any chance of ZIPing them? Easier download.

lt;- two thumbs up

Thanks for sharing