Linear Bearing Y Stage for Cupcake

by Zydac, published

Linear Bearing Y Stage for Cupcake by Zydac Oct 22, 2012


Still upgrading my Cupcake! This is a compact lightweight Y stage for the Makerbot Cupcake that uses SW4G linear bearings.

note 11/1/12: I added an 8mm version as well since Apparently some Cupcake models use 8mm rods. This should fit an LM8 linear bearing. This is untested - I am assuming the rod spacing is the same as my model.

11/3/12 I added two more experimental versions modified to fit the Lowrider - 1/4" and 8mm versions. Also original Rhino 3d files

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You are the best!

I just posted the 8mm version at standard width.  

I see that slamzee has posted the wider version. I am still just starting in on all of this, particularly the 3D modeling. With my newer batch of cupcake that I am working with it uses the 8mm rods. Would you (or slamzee) be able to post either the wider lowrider, or this normal width, with the modifications for 8mm linear bearings?

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This printed pretty well on my machine without support material despite the overhangs caused by the bearing tubes.

Press fit bearings in the tubes. Use plumbing tape if you need to shim it. They need to align pretty perfectly. Superglue magnets in the usual places. Attach belt with 3mm bolts and the belt plate. There are four pockets for hex nuts in the corner arms if you want to put a 3mm leveling screw there.

These are the bearings I used: vxb.com/page/bearings/PROD/Kit12770?gclid=CK79uLj9rbMCFUKd4Aod52gAHA

They just got a little more expensive so you might want to look on Ebay


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slamzee on Oct 30, 2012 said:

I have just finished printing it out.  The Y rods are 70mm apart on the z-lowrider.   Would it be hard to post another version with wider spacing?  Otherwise I can try to modify the four parts that secure the rods on the z-lowrider.

Zydac on Oct 30, 2012 said:

I should be able to do that pretty quickly.  I just relocated the Lowrider files (the author seems to have removed them from Thingiverse) and noticed that the newest version has 8mm rods vs my Cupcake which has 1/4" rods.  Which version are you using?  For an 8mm rod the bearing holders would need to be scaled up for a LM8 size linear bearing.

SirIronDuke on Oct 25, 2012 said:

I havent printed out TwoTimes lowrider yet, but in compairing the files, the lowrider does move the rods out wider.

slamzee on Oct 23, 2012 said:

Nice!  I wonder if this could work with TwoTimes Lowrider X Carriage?

Zydac on Oct 23, 2012 said:

If I remember correctly, the Lowrider had wider spacing between the rods.  Someone else could confirm this.  Of course this could be modified to fit.  

SirIronDuke on Oct 23, 2012 said:

im glad to see someone else still running, and upgrading the cupcakes