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Helical drive coupling

by dmatsumoto, published

Helical drive coupling by dmatsumoto Jun 20, 2011
38 8 3
Like 38 Collect 8 Comment 3 I Made One 0 Remix It 1 Share
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Instructions
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Made
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Description

I needed a way to connect my stepper motor to ACME rod, so I figured that if I'm going to print one, I might as well see how well a helical coupling prints. It came out better than expected, but I can't claim anything about performance or longevity of the part.

Recent Comments

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Sorry guys, I wasn't clear on this one. I printed it with support and then removed it afterward with needle nose pliers.

Did you print it with support? I looked at the G code, and there seem to be rather big overhanging parts of the helix. With support enabled it should print OK.

I tried to print this on my Printrbot Simple but I must have the wrong settings in Cura where I sliced it.
When the printer got to the first spiral it started out OK, but then started reaching farther and farther and the plastic got stringy and started collapsing…..maybe I am using the wrong temperature for my PLA 1.75mm filament. Or I have some settings that are not correct for this type of printing.
Could you clarify the settings you used to print this?
Thanks

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Tags

alibre, Coupler, coupling, Flexible, motor

License

Helical drive coupling by dmatsumoto is licensed under the Creative Commons - Attribution - Share Alike license.

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Instructions

I didn't model this in OpenSCAD, so I have also included my Alibre Design 2011 part. If you need a specific motor shaft or rod diameter, just send me a message and I'll upload a file for you.
Helical drive coupling by dmatsumoto is licensed under the Creative Commons - Attribution - Share Alike license.
By downloading this thing, you agree to abide by the license: Creative Commons - Attribution - Share Alike
Download All Files (310 kb zip file)

File Name

Downloads

Size

acme_to_stepper_coupling_v2.stl
Last updated: 11-06-20
Downloads: 523
Size: 1mb
523 1mb
acme_to_stepper_coupling.AD_PRT
Last updated: 11-06-20
Downloads: 368
Size: 625kb
368 625kb

Comments

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dmatsumoto on Jan 3, 2014 said:

Sorry guys, I wasn't clear on this one. I printed it with support and then removed it afterward with needle nose pliers.

rturnock on Nov 21, 2013 said:

I tried to print this on my Printrbot Simple but I must have the wrong settings in Cura where I sliced it.
When the printer got to the first spiral it started out OK, but then started reaching farther and farther and the plastic got stringy and started collapsing…..maybe I am using the wrong temperature for my PLA 1.75mm filament. Or I have some settings that are not correct for this type of printing.
Could you clarify the settings you used to print this?
Thanks

HamOp on Jan 3, 2014 said:

Did you print it with support? I looked at the G code, and there seem to be rather big overhanging parts of the helix. With support enabled it should print OK.

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