I'll add drawings here anyone is welcome to include their drawings ideas as well!
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I'll add drawings here anyone is welcome to include their drawings ideas as well!
You need to be a member of diydrones to add comments!
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Kevin, when we get to a point where we have a "functional" design I would like to start looking at making it more organic flowing lines instead of all straight ones. That should not translate into any price difference and would make this machine stand out of the crowd. Let's make sure it makes a statement just looking at it! Oh and BTW, really nice work so far. Most of the time I am not sure what Monroe is saying!
If you guys thinks it's a bad idea (the organic look) let me know... If people agree and you need help I can take a shot at it... I used to do some 3D Studio / Rhino back in the days...
There's a great concept for a statically determined linear slide in this document, Figure 6a. http://alexandria.tue.nl/repository/freearticles/605520.pdf Unfortunately the document is in Dutch, but I didn't want to "steal" their drawing.
The basic idea is that you want to fix a cart in five degrees of freedom, which you do with five roller (skate?) bearings. The four on the left and the one on top on the right. The two bearings on the bottom are mounted on a rather thin plate, so that they push the other five onto the guide.
This means the straightness of the cart is only derived from the left tube, you could even position the second tube a few degrees off without any harm done.
http://www.techno-isel.com/tic/Catdas/Gantry3.htm very useful link with good components
maybe something like this http://solsylva.com/cnc/rack_pinion.shtml