Thingiverse
Platform Collision Saver and E-STOP
by ScribbleJ
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This thing is meant to protect you from the agony of destroying your Thing O Matic or Cupcake heated build platform PCB by putting your print head through it. It can happen to the best of us.
It is a simple circuit that plugs into the EMERGENCY STOP port on a Thing-O-Matic, although I can easily set it up to work the same way for Cupcake users. Two wires go to your print head and aluminum heat spreader, and detect when they have collided.
While I have a youtube video of the trial run and it worked quite well, this is a Work-In-Progress for the following reasons:
* I don't want to be responsible for the $30 for a new platform if you destroy yours, or the new mobo if this fries it, for that matter. Either know enough to know this works or wait 'till someone who does has a good look at it.
* Needs me to get up the guts to really test it through kapton. UPDATE: I got the guts - and springs for safety. It will not punch kapton when moving only in Z, but it will when moving i
It is a simple circuit that plugs into the EMERGENCY STOP port on a Thing-O-Matic, although I can easily set it up to work the same way for Cupcake users. Two wires go to your print head and aluminum heat spreader, and detect when they have collided.
While I have a youtube video of the trial run and it worked quite well, this is a Work-In-Progress for the following reasons:
* I don't want to be responsible for the $30 for a new platform if you destroy yours, or the new mobo if this fries it, for that matter. Either know enough to know this works or wait 'till someone who does has a good look at it.
* Needs me to get up the guts to really test it through kapton. UPDATE: I got the guts - and springs for safety. It will not punch kapton when moving only in Z, but it will when moving i
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