Re: [MBZ] OT - plasma torch/cutter

2009-02-14 Thread Mitch Haley
Rich Thomas wrote: The lasers are pretty pricey, about $2k for one with sufficient power that will last for a while (the gas leaks out of the cheap ones). What about a water cutter? Would it be cheaper to get a water jet that would cut through gaskets, etc?

Re: [MBZ] OT - plasma torch/cutter

2009-02-14 Thread Craig McCluskey
On Sat, 14 Feb 2009 08:42:45 -0500 Mitch Haley m...@voyager.net wrote: Rich Thomas wrote: The lasers are pretty pricey, about $2k for one with sufficient power that will last for a while (the gas leaks out of the cheap ones). What about a water cutter? Would it be cheaper to get a

Re: [MBZ] OT - plasma torch/cutter

2009-02-14 Thread dave walton
You can get a powerful enough laser diode off eBay. Been wanting to play with them for a while. I'd go for the water-cooled type. The power supply has to send a pulse to the laser, then measure the internal resistance to determine how hot the thing is and use that info to fire the next pulse.

[MBZ] OT - plasma torch/cutter

2009-02-13 Thread Wilton Strickland
'Talking to engineer/inventor friend again at lunch today. 'Coupla days ago, he was SAYING, small/portable plasma torch, but he MEANT to be saying LASER cutter. His questions about plasma torch reminded me of discussiuon of such on the list a few weeks ago. What he has in mind, though, is to

Re: [MBZ] OT - plasma torch/cutter

2009-02-13 Thread E M
Your friends are starting to scare me Wilton. hee hee. My money's on, this guy had the combo to one of the other 2 locks?? ;-) lol Ed 300E 2009/2/13 Wilton Strickland wilt...@nc.rr.com 'Talking to engineer/inventor friend again at lunch today. 'Coupla days ago, he was SAYING,

Re: [MBZ] OT - plasma torch/cutter

2009-02-13 Thread Tim C.
I once saw weighted rotating knife blade 'pens' for this application, so if you want to cut the paper you can just use purple or something and it will cut a nice little paper whatever. For something like a laser cutter I'd be concerned about size, seems like you'd have to make it exactly

Re: [MBZ] OT - plasma torch/cutter

2009-02-13 Thread Wilton Strickland
- Original Message - From: Tim C. bb...@crone.us To: mercedes@okiebenz.com Sent: Friday, February 13, 2009 3:42 PM Subject: Re: [MBZ] OT - plasma torch/cutter I once saw weighted rotating knife blade 'pens' for this application, so if you want to cut the paper you can just use purple

Re: [MBZ] OT - plasma torch/cutter

2009-02-13 Thread Rich Thomas
The lasers are pretty pricey, about $2k for one with sufficient power that will last for a while (the gas leaks out of the cheap ones). cnczone.com has a lot of info on such things. A good laser tube has a variable power supply, cooling of the PS, and other bits to make it work well. A

Re: [MBZ] OT - plasma torch/cutter

2009-02-13 Thread Archer
Just repaired a high frequency coagulator, which is used to stop bleeding in surgery. New ones, I think are around six hundred and used about 3-4 hundred. a ground plate is placed under the patient and the HF arc is applied to the surgical wound via various shaped probes; ball, needle, angle,