Thursday, October 14, 2010

 

Building Huxley

Here's the Huxley I have been building. The plastic parts were kindly printed out for me by Nophead and the print quality is really excellent. It was almost a shame to use them. But I got over that.

I have blogged the build so far on my blog and docs site.

As you can see from the piccy the mechanics are almost done except for the Y axis. I am struggling to locate a suitable 2d drawing of the squashed frog that I can put hole centres on and extract dimensions from. Adrian and Erik have been helping with this so hopefully we will have a solution soon.

The Huxley is slightly oversize as it has been scaled up to take standard lengths of Silver Steel (Drill Rod in the US) as guide rails. The dimensions I used for the threaded rods have been added to the the wiki Huxley pages.

Comments:
Sounds like you made nearly the exact modifications to rod sizes that I did. Here's the stencil I used to make the froglet for mine: http://whosawhatsis.com/paraphernalia/8x8%20froglet.png I made the bed using the same stencil, by centering it on a pre-cut 200cm square and drilling through the holes in the corners. It does not include the holes for belt clamps and the cutouts to avoid collision with the y motor mount and idler, I measured and cut those after the fact.
 
Ha, looks like it will have a bigger build volume than the Mendel that printed it!
 
Mine has about 195x195mm usable, or at least it would if I didn't have a carriage-mounted extruder taking up about 45mm off of the X length. The usable z area is only about 90mm, but I could probably get twice that with a bowden extruder.
 
Interesting considering it used much less plastic for its build.

I guess a machine with a conveyor build bed could be a fraction of the size. as it doesn't need to layout too many parts per batch.

I wonder what the external dimensions of a standard Mendel would be ??
 
The wiki page lists Mendel's external dimensions as 500x400x360mm. My Huxley is about 380x350x330mm.

Erik de Bruijn said that he had mounted an automated build platform from makerbot on his Huxley, don't know if he's tested it yet.
 
The outside dimensions of Mendel are a lot bigger than that when the bed moves.

More like 540 x 440 x 360.
 
NEED HELP TO BUILD A MENDEL
I am design teacher in Singapore and is fascinated with the RepRap. I really would like to learn/build one machine to bring back to show my students, and teach them how to build their own RepRap next school year.
In November, I am travelling to UK and if any of you "Pro" RepRap builders in UK would be kind enough to take me through the process of building a Reprap, please email me.
I will pay for the all the RepRap parts & your time (qualifying- I only have a working project fund to use)
Please email me:
maitdh(at)gmail(.)com
We can chat more via email.
Thank you very much. Q
 
I made the bed using the same stencil, by centering it on a pre-cut 200cm square and drilling through the holes in the corners.I guess a machine with a conveyor build bed could be a fraction of the size.I really would like to learn/build one machine to bring back to show my students, and teach them how to build their own RepRap next school year.Too informative and useful post.
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