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Author Topic: Home made wood burning tool. pyrography  (Read 3186 times)

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Offline shinnlinger

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Re: Home made wood burning tool. pyrography
« Reply #20 on: December 20, 2017, 07:17:56 AM »
The only concern I have with that 80lber is that it says it puts out 100 milliamps.  Thats the threshold of "safe" amperage in my mind.   I'm not saying don't do it, but obviously be careful.  Cutting down a tree is dangerous too, but there are more safe ways to do it than others.

I will try to snap a pic today, but all it is is a black box that I added a computer plug to for AC input with a lead attached to each of the two poles.   The video above shows two jumper cable style clips with finish nails or something for probes that he rests on wood blocks.  I soldered some big brass wood screws to the wire leads on mine to use as probes and insulated them with some plastic tubing with the idea you could hold the leads and change the contact points for different burns wearing thick rubber gloves.   I don't do it like that anymore however.  I clamp the leads to the wood and step back and turn it on and then off when I happy with the burn and then reposition as necessary.  Very similar to the video.
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Re: Home made wood burning tool. pyrography
« Reply #21 on: December 20, 2017, 09:57:44 AM »
I got the probes built today... waiting for my sparkplug wire to come.

 

 

 

 

 

 
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Offline Weekend_Sawyer

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Re: Home made wood burning tool. pyrography
« Reply #22 on: December 20, 2017, 12:22:26 PM »
Oh I see, you are making an electrified Ouija board.

... wrong answer, BZZZZZZ!
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Re: Home made wood burning tool. pyrography
« Reply #23 on: December 20, 2017, 12:22:54 PM »
First try....

 

 
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Offline YellowHammer

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Re: Home made wood burning tool. pyrography
« Reply #24 on: December 20, 2017, 01:07:07 PM »
Are you holding the probes to get the design?
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Offline starmac

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Re: Home made wood burning tool. pyrography
« Reply #25 on: December 20, 2017, 02:18:59 PM »
That is cool looking. It is easy enoughto see you guys know much more about electricity than I do, so all I can say is play safe.
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Offline Al_Smith

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Re: Home made wood burning tool. pyrography
« Reply #26 on: December 20, 2017, 04:35:04 PM »
It's a little more entailed than just high voltage when you are talking micro waves .High power units are used in induction hardening .They emit super high frequency AC and just like a micro wave oven can cook a person  from the inside out .
At work on the older units they actually used hollow water cooled conductors to the coils which acted much like a wave guide on radar .Everything was shielded but every so often the shielding failed,what a mess that was .I wasn't overly found of working on them for obvious reasons and I know what I'm doing .I personally would stay away from them --just saying

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Re: Home made wood burning tool. pyrography
« Reply #27 on: December 20, 2017, 05:37:42 PM »
UNNESSESARY QUOTE REMOVED!!!!

The  high frequency does not come from the transformer it comes
from the magnetron.
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Re: Home made wood burning tool. pyrography
« Reply #28 on: December 20, 2017, 05:43:04 PM »
Are you holding the probes to get the design?

On that first one no... I let the plastic parts sit on the wood and I plugged
and unplugged the transformer each time I moved the plastic parts.
I'll post the next pictures in the next post of what I'm doing now.
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Offline SwampDonkey

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Re: Home made wood burning tool. pyrography
« Reply #29 on: December 20, 2017, 05:49:14 PM »
I just have the cheap pen like wood burner, then if I don't like the results it goes into another wood burner for heat.  ;D

No, well I use one once in awhile. I made a large wooden chest from butternut, pine, cherry and birch. The butternut I drew some leaves with the burner, the pine I drew a logging scene in the lid and the pine on the front was a crest. Photos is the gallery and in this forum. Also, a forest scene and a very large purple trillium, which was pretty close to the actual size they grow in my woods. Those two were on a couple wooden serving trays. Again somewhere in my gallery and in this wood working forum.

You guys be careful with those electric gadgets, that stuff can bite.

Pre-commercial thinning pays off. :)

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Re: Home made wood burning tool. pyrography
« Reply #30 on: December 20, 2017, 06:05:44 PM »
This is my second picture. I keep working up to a bigger transformer.
It looks like I will be using the biggest one I got. Or maybe I will try
a microwave transformer.

 

 

This is the transformer I used to make the picture above.

 

 

This is the probe that I'm using now. I like it so much better because I can
keep moving it around with out starting and stopping the machine. It was a
welding electrode and I wrapped it with rubber tape for extra protection.
I hold the electrode with my right hand and touch nothing else.

 

 

And last but not least I made this foot pedal that I have to keep my foot on
to keep it turned on. If for some reason I get shocked I think my foot will
leave the pedal. I work at home alone so I want to be safe.

 

 

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Offline 21incher

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Re: Home made wood burning tool. pyrography
« Reply #31 on: December 20, 2017, 07:03:03 PM »
I wonder if this should be moved to the full membership board so no children see it and try it. Pretty easy for a spark to crawl without the proper materials.
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Re: Home made wood burning tool. pyrography
« Reply #32 on: December 20, 2017, 08:13:51 PM »
I wonder if this should be moved to the full membership board so no children see it and try it. Pretty easy for a spark to crawl without the proper materials.

Check out U-tube. 100's of videos on how to do this...
Not much different than carving with a chain saw...
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Re: Home made wood burning tool. pyrography
« Reply #33 on: December 20, 2017, 08:18:28 PM »
Third one... This was done with my biggest transformer.
everything was done on Pine. Tomorrow I'm going to try some oak.

 

 

 

 
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Offline samandothers

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Re: Home made wood burning tool. pyrography
« Reply #34 on: December 20, 2017, 08:47:21 PM »
What voltage is on the high side of transformer?   Seems if I got it right from some utubes the oil burner and neon sign ones are 10 to 12 kv with lower current than the microwave transformer that maybe lower voltage and higher current.

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Re: Home made wood burning tool. pyrography
« Reply #35 on: December 20, 2017, 09:30:20 PM »
What voltage is on the high side of transformer?   Seems if I got it right from some utubes the oil burner and neon sign ones are 10 to 12 kv with lower current than the microwave transformer that maybe lower voltage and higher current.

12 kv
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Offline WLC

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Re: Home made wood burning tool. pyrography
« Reply #36 on: December 21, 2017, 01:58:00 AM »
You using baking soda and water brushed on the wood?
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Re: Home made wood burning tool. pyrography
« Reply #37 on: December 21, 2017, 04:39:01 AM »
You using baking soda and water brushed on the wood?

Almost... Washing soda made by the baking soda co.
It's stuff I use for cleaning rusted metals.  Electrolysis
Today I'm going to try baking soda to see if there is a difference.
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Offline Den-Den

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Re: Home made wood burning tool. pyrography
« Reply #38 on: December 21, 2017, 08:55:47 AM »
I have played with this (microwave transformer) very carefully.  The lower amperage systems are less dangerous but please be careful.  20 milliamps is enough to stop your heart.  Any unit that will make these patterns is capable of killing although some are more likely to do so.
You may think that you can or may think you can't; either way, you are right.

Offline SlowJoeCrow

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Re: Home made wood burning tool. pyrography
« Reply #39 on: December 21, 2017, 01:37:14 PM »
Looks nice K!

 


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