Stackable Cycloidal Drive r=15:1 - Fits NEMA 23 by Protoboard

Protoboard

Hobby & DIY>Robotics

Print Profile(2)

All

X1 Carbon

P1S

P1P

X1E

A1 mini

0.2mm layer, 2 walls, 15% infill

Designer

1 h

1 plate

4.9(12)

0.2mm layer, 2 walls, 15% infill

1.2 h

1 plate

5.0(5)

Open in Bambu Studio

Boost

175

118

Released

Description

A fully functional, slim and stackable cycloidal drive designed by me (BLJ ENGINEERING, @protoboard)

Features

Prints without support.
Easy to assemble, just align the index marks as you go.

Reduction ratio 15:1
Can be hand-driven with the included input knob. TIP: Use the knob as an adapter to a standard 1/4in (6,35mm) hex bit.
Stackable: A reduction ratio of 225:1 is achieved with two drives.
Fits faceplate/ bolt holes on standard NEMA 23 motors.
<1h print time in most cases.

Tested in PLA and ABS. Any config should work. Tolerances are somewhat loose. Matte filament: After the first few turns, just rinse the parts in water to flush out the dust, if any. A dab of Vaseline or coking oil works great.

Please use with caution around small kids - small parts!

Documentation (8)

Assembly Guide (8)

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Comment & Rating (34)

@user_3385569739

Print Profile

0.2mm layer, 2 walls, 15% infill

printed well other that one of the sides a corner came loose during printing. i assume the words on bottom left small features and they didnt adhere properly

The designer has replied

@protoboard

Could you share more details about the filament you used?

@user_3385569739

Replying to @protoboard :

hatchbox petg

@protoboard

Replying to @user_3385569739 :

Ah, I’m not familiar with that filament, especially since it’s not from Bambu. The lifting/adhesion issue could stem from various factors, and it’s unclear to me if a PLA profile is suitable—a dedicated PETG profile is probably better suited.

@ZenOnDanon

Bambu PLA black version. Printed well, easy assembly, after a few drops of leftover Bambu grease here and there works like a charm. please keep adding more of such modular designs, also adapters for pulleys or rods of 2, 3 and 5mm would be great to see.

The designer has replied

@protoboard

Thank you for the feedback! I'm glad to hear it printed well and assembled easily for you. Using Bambu Lab grease was a great tip! I'll keep adding more modular designs when time allows, and I'll see if I can add more models during my vacation. Thanks for the suggestion about adapters for pulleys or rods. BTW, the pictures aren't loading for me. Could you upload them again? I'd love to see them!

@ZenOnDanon

Replying to @protoboard :

looks like only web page is not loading the pictures also for me. Via Bambu app I can see the pictures. For your comfort: https://photos.app.goo.gl/uSBLaieKVEt9VavBA

@protoboard

Replying to @ZenOnDanon :

Thanks! Turned out great!

@Bearded_Beast47

great print.

(Edited)

@S2machines

Print Profile

0.2mm layer, 2 walls, 15% infill

@user_608156288

Boosted

Print Profile

0.2mm layer, 2 walls, 15% infill

great real world application. with a smooth build plate and PETG I'll print a translucent cover to show the principle

The designer has replied

@protoboard

Oh, we wanna see that!

@user_608156288

Boosted

Replying to @protoboard :

Well, I still have no smooth build plate :(

@user_3191208571

Boosted

Print Profile

0.2mm layer, 2 walls, 15% infill

Great results, by far the tiniest cycloidal drive.

The designer has replied

@protoboard

Thanks for the excellent review, the stars, and the boost!

@user_3191208571

Boosted

Replying to @protoboard :

Well deserved, it's a great design.

@user_685640531

Prints well and good assembly. I am going to print one with transparent material.

The designer has replied

@protoboard

Thanks! I'd love to see a transparent version!

@user_1106081910

Boosted

Excellent — precisely what I was looking for to achieve precise rotation of a large mass with "high" torque I've just started the print with PLA CF I'm really excited Thanks in advance

Show original

@bobis

Boosted

Print Profile

0.2mm layer, 2 walls, 15% infill

Printed well with no issues. The part geometry has a lot of slack built in, and is very forgiving in general, so this should be an easy one to print.

@bobis

Boosted

Works very well in PETG. Great design, very slick and well thought-out, and making them modular is a very nice touch.

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.

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Description

Documentation (8)

Comment & Rating (34)

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