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POLAR DRAWBOT
by daGHIZmo
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This is my redesign of mechanical parts used to build a Wallmount Polar Drawbot .
I built mine collecting and mixing various information I found available on the web.
The electronics and firmware comes from Dan Royer's "Makelangelo project" (Makelangelo SOFTWARE - Makelangelo FIRMWARE ) using V1 version of Adafruit motor shield but I used an DK Electronics motor shield
I made several test trials using parts found ready around many projects, but none seem to match the requirements I would like to obtain.
So I completely redesign all parts.
Following several tests I developed 3 kind of pulley: one is to be used for smooth cords and others for synchronous trasmission made with ball chains.
3 types of ball chain can be used: Ø 3,2 mm all metal chain with pitch of 4 mm , Ø4,4 mm plastic ball and cord with pitch 6 mm, Ø4,4 mm plastic ball and cord with pitch 12 mm
They can be used interchangeably, just remember to change pulley diameter in the machine s
I built mine collecting and mixing various information I found available on the web.
The electronics and firmware comes from Dan Royer's "Makelangelo project" (Makelangelo SOFTWARE - Makelangelo FIRMWARE ) using V1 version of Adafruit motor shield but I used an DK Electronics motor shield
I made several test trials using parts found ready around many projects, but none seem to match the requirements I would like to obtain.
So I completely redesign all parts.
Following several tests I developed 3 kind of pulley: one is to be used for smooth cords and others for synchronous trasmission made with ball chains.
3 types of ball chain can be used: Ø 3,2 mm all metal chain with pitch of 4 mm , Ø4,4 mm plastic ball and cord with pitch 6 mm, Ø4,4 mm plastic ball and cord with pitch 12 mm
They can be used interchangeably, just remember to change pulley diameter in the machine s
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