Locking Bearing Bracket for Makerbot Cupcake
by clothbot, published
Description
The side-mount bolts pass through captive nuts to lock the bearing (608-style skate bearing) in place, removing the need for precisely aligning the nuts holding the bearing in vertical position on the threaded z-axis rods. It also may allow for easier removal of the z-axis rods themselves when combined with the revised U-shaped z-platform Small Makerbot Parts (thing:926).
Note 1: My test ABS print is quite tight around the bearing so the inner radius may need to be increased by 0.1mm or so.
Note 2: The 20090928 variant increases the inner radius surrounding the bearing by 0.5mm. A 1mm ring has been added to the top to strengthen the tear-drop, side-mount bolt holes.
Note 3: Download the LaserCut variant if all you have is a laser cutter.
Parts of the Cupcake design were used to design this part so License is inherited GNU GPL.
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if it showed the file name and no pic. Thats what mine did. I think it takes a few to have the pic show up.
I made some of these and they came out great, however, being new to thingiverse and flickr, my upload doesn't seem to want to work either. I tried just entering the photo ID as you suggested, and it does upload the correct photo name, but still no image.
Here's the link:
http://www.flickr.com/photos/4...
Any thoughts on what I might be doing wrong to have the photo show up here?
Excellent!
The trick is to find the image's flickr number and just specify that.
Eg. http://m.flickr.com/#/photos/3...
...Should be image 3980740610; that's the number you enter.
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Instructions
1. Download the STL.
- For a snug bearing fit, download the 20090927 variant
- For a looser bearing fit to allow for more side-mount bolt positioning room, download the 20090928 variant.
2. Raft with your favorite skeinforge settings
3. Print.
4. Clean up the print.
- Pass M3 bolts through all the holes to clear out any strands.
- Push a bearing through to ensure a clean fit.
5. Insert at least two captive nuts with M3 bolts at right angles in the side-mount holes.
- To try: Use M3 set screws, 6mm to 8mm in length (e.g. McMaster Part 91390A100)
6. Mount the bracket on the Cupcake Top.
7. Adjust the threaded z-axis bearing height to sit at the side-mount hole positions.
8. Tighten the side-mount bolts.
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Excellent!
The trick is to find the image's flickr number and just specify that.
Eg. http://m.flickr.com/#/photos/3...
...Should be image 3980740610; that's the number you enter.
I dont know whats up with my image of "I made one" not working however here is the link to the laser cut version...
http://www.flickr.com/photos/3...
Have a look at the LockingBearingBracket_LaserCut_20091001.skp file I uploaded.
I assumed 3mm thick (one Ponoko laser-cut option) and sized the SetScrewBracket slots accordingly.
This is very cool. I am working on an laser cut only translation. Since I am without reprap :(
The gottcha is going to be access to those side-mounted set screws; the middle layer(s) are going to be split into four quadrants.
One approach might be to make vertical slits and pass a 'guillotine' with bolt holes in the middle for the captive nuts to press against.
^ ..Aaaand that was me just there ^
This off-site commenting thing doesn't work at all for me, no matter which service I use (OpenID/twitter/Google/Etc.), so I'm perpetually a guest..
I made some of these and they came out great, however, being new to thingiverse and flickr, my upload doesn't seem to want to work either. I tried just entering the photo ID as you suggested, and it does upload the correct photo name, but still no image.
Here's the link:
http://www.flickr.com/photos/4...
Any thoughts on what I might be doing wrong to have the photo show up here?
if it showed the file name and no pic. Thats what mine did. I think it takes a few to have the pic show up.