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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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Wood Burner Plans
Hi All.
A few weeks back I asked for help in troubleshooting some plans I came across on the 'net to make one's own woodburner (pyrographic) control box. Thank you to all who took the time to respond and provide assistance. I now have a working control unit thanks to your help. The following is an article I posted on my web site as well as submitted to one of my club's newsletters: ________ My web URL: http://users.easystreet.com/onlnlowe...woodburner/bur ner.html ________ The article in full: Making a Burner Control Unit For years I've used various markers to sign and date my turned pieces. Problems arose when the finish I used would remove or worse yet, smear, the ink. I had to use two different markers depending on whether I was using either an oil-based or an alcohol based finish. I liked the wood burning systems, but with costs passing $120 they were just too expensive for my budget. I came across a carving web site on which free plans for building a homemade burner control box and hand piece were offered. After assembling the parts and wiring them up as directed, I couldn't get any heat in the nichrome test wire. A couple weeks of troubleshooting with various folks on the rec.crafts.woodturning news group led me to a solution that seems to work beautifully - with total costs coming in at around $25 not including the case, which I elected to make of wood. Here's a rough wiring diagram to perhaps make things a little more clear: http://users.easystreet.com/onlnlowe...woodburner/wir ingdiagram.JPG" Here's what you'll need to assemble your own control box and hand piece: Heavy Duty 12.6v Transformer Radio Shack 273-1511 Panel Mount 1/4" Headphone Jack Radio Shack 274-252 Panel mount neon indicator lamp (red) Radio Shack 272-712 Dial type dimmer switch, 110v AC local hardware store Single pole, single throw toggle switch, 110v AC local hardware store 8 -10 ft of standard 16 or 18 guage lamp cord local hardware store Standard 2-prong AC plug local hardware store Optionally, if you don't want to make your own case: Metal or plastic enclosure (case) appx. 6"x8" Radio Shack If you go the metal case route you should buy 3-wire power cord and a 3 prong plug - attaching the ground wire to the metal case. While you're forking over your bucks to Radio Shack you might want to pick up the following items if you're game to making your own burner handpiece as well: Gold Plated 1/4" Male Headphone Jack Radio Shack 274-855 European Barrier Strip Radio Shack 274-679 Instructions for making a handpiece are located at FishCarver.com: http://fishcarver.com/images/burning%20instructions.PDF With the parts gathered together begin by mounting the parts in the enclosure in whatever layout you desire. The incoming power is connected in this order: 1) The power cord enters the box with the hot leg connected to one lug on the toggle switch. 2) Connect one leg of the indicator lamp wire and a spare segment of wire to the other lug on the toggle. 3) Connect the free end of the wire segment to one of the wires from the dimmer switch. 4) Connect the other wire from the dimmer switch to one of the black leads from the pair exiting the high voltage side of the transformer. 5) The neutral leg on the incoming power cord gets tied to the other black lead on the high voltage side of the transformer along with the remaining free wire from the lamp. The low voltage side of the transformer is connected as follows: 1) Chose one of the yellow wires of the three (two yellows, one black) coming from the side of the transformer and solder this to the lug running to the center of the female headphone jack. 2) The other yellow wire is tied off and goes unused. 3) The black wire from this same side of the transformer is soldered to the other lug on the female headphone jack. Use soldered connections on the low voltage side to ensure as little resistance in the joins as possible. That's all there is to wiring the control box. I must leave you to figuring out how to make your own handpiece using the FishCarver.com site as I've yet to tackle this portion of the project. I have cobbled up a test handpiece using the Radio Shack parts that FishCarver specifies but haven't assembled a finished, presentable unit. One last thing. If you are unsure of your electric skills then perhaps consult a friend who can guide you. I'm afraid I can take no responsiblity for the instructions or schematic, even if you: ZAP yourself; burn down your shop and/or house; ruin a perfectly turned and finished piece; or obliterate any eyebrows or fingerprints. I'm no electrical engineer and offer the parts list and method of assembly that worked for me. -- "To know the world intimately is the beginning of caring." -- Ann Hayman Zwinger |
#2
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Owen Lowe wrote:
Hi All. A few weeks back I asked for help in troubleshooting some plans I came across on the 'net to make one's own woodburner (pyrographic) control box. Thank you to all who took the time to respond and provide assistance. I now have a working control unit thanks to your help. The following is an article I posted on my web site as well as submitted to one of my club's newsletters: What's the cost, so far? |
#3
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In article tqJcd.2409$5l3.311@trnddc02,
Lobby Dosser wrote: What's the cost, so far? Not including the wood to make the enclosure - which was from my scrap bin - about $25. I took the control unit and a quickly made handpiece to a couple local chapters' meetings and folks were suitably impressed. There's quite a good bit of variablity in the heat through the nichrome wire. I think it's a winner and will add a pic to my web page after I get my dig. camera back from the shop. -- "To know the world intimately is the beginning of caring." -- Ann Hayman Zwinger |
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In article tqJcd.2409$5l3.311@trnddc02,
Lobby Dosser wrote: What's the cost, so far? Oh, yes. One more thing. A fellow member ran my article and plans by his electrical engineer son and got a thumbs up. The only suggestion would be to possibly include a fuse either on the incoming line or on the handpiece line. Not essential, I was told, but wouldn't hurt. -- "To know the world intimately is the beginning of caring." -- Ann Hayman Zwinger |
#5
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Owen Lowe wrote:
In article tqJcd.2409$5l3.311@trnddc02, Lobby Dosser wrote: What's the cost, so far? Not including the wood to make the enclosure - which was from my scrap bin - about $25. I took the control unit and a quickly made handpiece to a couple local chapters' meetings and folks were suitably impressed. There's quite a good bit of variablity in the heat through the nichrome wire. I think it's a winner and will add a pic to my web page after I get my dig. camera back from the shop. Lot better than $120! Nichrome wire - hmmm. I've got an old foam cutter kicking around. Wonder if I could use that. I look forward to seeing the handpieces. Thanks for the article. LD |
#6
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Owen Lowe wrote:
In article tqJcd.2409$5l3.311@trnddc02, Lobby Dosser wrote: What's the cost, so far? Oh, yes. One more thing. A fellow member ran my article and plans by his electrical engineer son and got a thumbs up. The only suggestion would be to possibly include a fuse either on the incoming line or on the handpiece line. Not essential, I was told, but wouldn't hurt. And one other thing --- Nichrome wire brings back memories of high school physics. Mumble mumble mumble whatever you do, do not expose the wire to air; keep it in the water - mumble mumble mumble. Leaves wire sticking out of water. Wire begins burning. Procedes to grab both terminals to shove it under. Zaaaappp!! Learned a fair amount about electricity that day. Plugged into a 110, of course. LD |
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