Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
Test Tube Mendel
by bryanandaimee, published
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Description
A bare bones mendel using the vinyl tubing vertex as described by mrkim thingiverse.com/thing:8313. So far I have the frame and a Z motor mount. I'm thinking the X motor mount and idler will be similar to Prusa's but backwards and possibly upside down since my smooth rod is inside of my threaded rod rather than vice versa as in the Prusa Mendel. I'll try to keep this page and the reprap wiki page reprap.org/wiki/Test_Tube_Mendel as up to date as possible as I make progress.
update: 6-20-2011 got the X end idler done. Files are posted.
So far the print time savings is as follows (I'll skein these all with same settings soon for apples to apples comparison.)
Vertices:
Prusa -> 2x top + 4x footed = about 6.5h printing
Test Tube -> 0h printing
Z motor mounts:
Prusa -> 2x motor mount = about 2h printing
Test Tube -> 2x motor clamp, 4x angle rod clamp 2left,2right = about 1h printing (or 0 hours if you use Mrkims idea here thingiverse.com/thing:9180 )
Y motor mount:
Prusa -> about 1/2 hour printing
Test Tube -> 0h printing
X end Idler:
Prusa -> about 1.5 hour printing
Test Tube -> 1 Idler + 2 idler clamp -> about 1 hour printing
update: 6-20-2011 got the X end idler done. Files are posted.
So far the print time savings is as follows (I'll skein these all with same settings soon for apples to apples comparison.)
Vertices:
Prusa -> 2x top + 4x footed = about 6.5h printing
Test Tube -> 0h printing
Z motor mounts:
Prusa -> 2x motor mount = about 2h printing
Test Tube -> 2x motor clamp, 4x angle rod clamp 2left,2right = about 1h printing (or 0 hours if you use Mrkims idea here thingiverse.com/thing:9180 )
Y motor mount:
Prusa -> about 1/2 hour printing
Test Tube -> 0h printing
X end Idler:
Prusa -> about 1.5 hour printing
Test Tube -> 1 Idler + 2 idler clamp -> about 1 hour printing
Recent Comments
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The bare frame seems a little more flexy than the prusa I have, but that should go away once you attach an electronics mounting board. As for other materials, I think anything that doesn't crush could be used for the triangles. The cross bars still have to be threaded though.
Well, I think this is a very good thing. If it turns out to be as stable as the current Mendels, then that will reduce the production cost of these things. At the same time, it also opens up the possibility of using materials other than just threaded steel rods.
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Test Tube Mendel by bryanandaimee is licensed under the Creative Commons - Attribution - Share Alike license.
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Instructions
I'm using 5/16 inch threaded rod, but the design is currently (mostly) agnostic about the choice of rod size. I did the entire frame in 15 inch lengths to make scaling easy. I did 15 inch lengths to mimic the Mendel build area, but 12 or 18 inch lengths would be more efficient from a materials standpoint (waste less rod) and might make for some interesting mini and mega versions.
Z motor mount uses 1/4 inch cross bar and a couple printed parts. The cross bar reduces print time for Z motor mount. (about 30 min each set)
The bar clamps are from the Prusa mendel files github.com/prusajr/PrusaMendel.
Z motor mount uses 1/4 inch cross bar and a couple printed parts. The cross bar reduces print time for Z motor mount. (about 30 min each set)
The bar clamps are from the Prusa mendel files github.com/prusajr/PrusaMendel.
Test Tube Mendel by bryanandaimee is licensed under the Creative Commons - Attribution - Share Alike license.
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Well, I think this is a very good thing. If it turns out to be as stable as the current Mendels, then that will reduce the production cost of these things. At the same time, it also opens up the possibility of using materials other than just threaded steel rods.
The bare frame seems a little more flexy than the prusa I have, but that should go away once you attach an electronics mounting board. As for other materials, I think anything that doesn't crush could be used for the triangles. The cross bars still have to be threaded though.