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Project:Cupcake-o-Matic: Difference between revisions
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→Adding a Cantilever Z Axis
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To first fix this I printed a [http://www.thingiverse.com/thing:3091 Z-Wobble arrester without pin]. It replaces a nut on the Z platform and allows the threaded rod to move back and forth without necessarily dragging the platform in that direction. This was fiddle to install as it required the removal of a nut trap on the platform and then the nut to be moved down a bit, whilst still leveling the bed. It was hard to tell how well this was working but I certainly felt my Cupcake CNC worked better when the arrester was installed on the wonkiest threaded rod. However this did not fix the problem of having to level the Z platform so I began to research on Thingiverse for a good solution to solve my troubles permanently. | To first fix this I printed a [http://www.thingiverse.com/thing:3091 Z-Wobble arrester without pin]. It replaces a nut on the Z platform and allows the threaded rod to move back and forth without necessarily dragging the platform in that direction. This was fiddle to install as it required the removal of a nut trap on the platform and then the nut to be moved down a bit, whilst still leveling the bed. It was hard to tell how well this was working but I certainly felt my Cupcake CNC worked better when the arrester was installed on the wonkiest threaded rod. However this did not fix the problem of having to level the Z platform so I began to research on Thingiverse for a good solution to solve my troubles permanently. | ||
The | The first solution I found was a middle point solution, the [http://www.thingiverse.com/thing:18849 ACME rod upgrade for Makerbot Cupcake]. You needed to replace the bent M8 threaded rods and nuts with an ACME screw thread on CNC machined rods, this would be both smooth and straight. This seems like a great idea but it requires purchasing $85 worth of ACME threaded rod from the USA, which would cost a ridiculous amount with overseas shipping. So I had to shelve this idea with some regret. | ||
The Thing-o-Matic had come out for some time ago at this point and I was rather interested in the Z axis which was made up of a cantilevered platform which had 2 smooth rods for stability and a linear stepper motor for positioning. | |||
[http://www.thingiverse.com/thing:14492 Cantilevered Z-Stage for Cupcake] | [http://www.thingiverse.com/thing:14492 Cantilevered Z-Stage for Cupcake] | ||
