CNC Pyrography Experiments

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msimpson
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CNC Pyrography Experiments

Post by msimpson » Wed Oct 02, 2019 10:26 pm

I have been doing some experiments with some custom pyrography components that I built.

See the first experiment here:

mbonadio
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Joined: Wed Dec 05, 2012 3:01 am

Re: CNC Pyrography Experiments

Post by mbonadio » Thu Oct 03, 2019 1:37 am

That is so cool, I had no idea about this possibility. It looks like a useful controller, what are you plans for releasing it?

Cheers
Michael

msimpson
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Re: CNC Pyrography Experiments

Post by msimpson » Thu Oct 03, 2019 10:05 am

The controller was built from parts I got from Amazon.

It consists of the following:
12V 30Amp power supply - $20
20Amp Motor Controller - $8
Dual Display Volt/Amp Meter - $13
Power Source for Display (needs to be isolated) - $5
12V 30Amp Relay - $10
Small Fan
Power Cord
Other wires and hardware

While it does work well, the motor controller has no overload protection and can burn up. I know cause I am on the second one. I burnt the first by running 20 Amps for a few minutes without a fan. I think I would like to source one that will go to 30Amps and has overload protection. I would also add a fuse or breaker to the output.

It is important that the controller be consistent in its output to provide consistency in the burn.

I do get a little creep over time. If I set it to 14A mps at the start it will slowly raise to about 15 Amps over a few minutes of burning. This however I believe is the tip heating up.

When I get it all finalized, I will write it all up on the site.

MarkVa1
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Re: CNC Pyrography Experiments

Post by MarkVa1 » Thu Oct 10, 2019 2:34 pm

That does look cool. Never heard of pyrography but apparently you can do it on leather too... That might be a money maker... never seen a leather shop / upholsterer with a CNC machine.

msimpson
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Re: CNC Pyrography Experiments

Post by msimpson » Thu Oct 10, 2019 3:15 pm

The hot end is still continuing to evolve. Here I have added a small fan to keep the terminal blocks cooler.
_MG_6515.jpg
I have been able to get some good shading results on MDF.
_MG_6516.jpg

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