Hot Wire Foam Cutting ....

[GPW]

... and the wife just agreed with the both of us ... Mum's the word !!!

[allan1]

I'd like to see a picture of a hot wire cutter in action...

Got any pics?

Glenn, you are going to have to design us a roundover wire cutter that runs on 4 D sized batteries...

Mike...

Mike, heres some links to more battery operated cutters.
http://www.instructables.com/id/Hot-Wir ... y-Powered/

http://www.google.ca/imgres?q=battery+p ... mBw&zoom=1

http://www.wantitall.co.za/Toys/Crafter ... B004E97LCI

http://www.flyelectric.ukgateway.net/hotwire1b.htm

Have seen some pics of people using plug in power adapters and I think I'll go the the local 2nd hand store and pick up a couple of different types and experiment.

[eaglesdare]

oh no, does this mean i have to watch allan also?

i do like that cut though, nice

[mikeschn]

Do you have any examples of wire cutters that can cut a roundover?

Mike....

[Larry C]

Do you have any examples of wire cutters that can cut a roundover?

Mike....

I would like to see that also. It seems the only way it would work is with a piece of thin stiff flat material. It would keep it's curved shape, and wouldn't bend like round wire especially on a large radius.
We have these at work (see link). I think this would be stiff enough for a roundover cut, but I don't know how much current would be required to heat it enough. These are 1/4" wide, but it looks like there is also a .177" width. They are very thin, and would cut like a knife .015" thick.

It could be formed to shape similar to the Ohms Symbol, but with the legs further apart formed to the desired radius.



http://www.band-it-idex.com/en/products/Stainless_Steel_Ties/Tie-Lok%20Ties.html

[allan1]

Do you have any examples of wire cutters that can cut a roundover?

Mike....

This should do the trick simply (found on internet).

[mikeschn]

Do you have any examples of wire cutters that can cut a roundover?

Mike....

This should do the trick simply (found on internet).

That looks good. Tell me where I can get that wire... and of course, please tell me what kind of wire that is...

MIke...

[allan1]

Do you have any examples of wire cutters that can cut a roundover?

Mike....

This should do the trick simply (found on internet).

That looks good. Tell me where I can get that wire... and of course, please tell me what kind of wire that is...

MIke...

Mike both excellent questions and all I have for you are silly answers. I've only started to learn about hot wire cutters in the past week and so my humble self pleads ignorance. GPW, pete42 or Larry C would be a better source of opinion at this point. At this point in my learning I'd just grab whatever wire I had hanging around and try it.

[GuitarPhotog]

It's nichrome wire http://en.wikipedia.org/wiki/Nichrome and you can get it here http://www.amazon.com/Nichrome-Nickel-Chromium-Guage-Length/dp/B0046VZJVO

<Chas>

[GPW]

[GPW]

Here’s another take on a quickie HW foam cutter ... http://www.rcgroups.com/forums/showthread.php?t=1244763

BTW, lots of HW cutting info on this site .... use the search function ...

[allan1]

GPW thanks for the link. Bought a power supply on ebay and it's on its way! Found my beginners website - uncomplicated info about power supplies, tool plans, wires, good video links, etc. Time to start building a table and tools.

http://hotwirefoamcutterinfo.com/Hot_Wi ... ction.html

[GPW]

Lots of good info out there , one only has to search for it ...

[allan1]

just came in the mail ... TEC 3 Power Command 9000. Output is 20Vdc, 19VAC, 20VDC - all no load ratings. I'll have to find out what that all means. And it's got dials, switches and meters .... ohhhhhhh

[GPW]

Looks Cool ... dial in the Heat ...