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Plasma Circle guide

Posted: Sat Jul 19, 2014 6:09 pm
by GlenC
Well, it took a while and a couple revisions, but I finished my circle guide for my Powermax 45. Probably more HD than needed, but I always seem to over build!Image
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Next, is putting it to work!

Re: Plasma Circle guide

Posted: Sat Jul 19, 2014 8:04 pm
by GlenC
It works! .... now I just need learn how to use the Hypertherm....

3/8" plate...

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Re: Plasma Circle guide

Posted: Sat Jul 19, 2014 8:05 pm
by GlenC
I need to design a guide wheel, the drag tip is not ideal for a smooth cut. The two handed approach, with one hand on the end of the rod, works okay. Cleaning the surface helps too!

Re: Plasma Circle guide

Posted: Sat Jul 19, 2014 8:08 pm
by rick9345
Like
Overbilt,overkil, NOT

But the swing rod may be a little spindly for rest of it

Re: Plasma Circle guide

Posted: Sat Jul 19, 2014 8:12 pm
by TxBigRed
Pretty slick!

Re: Plasma Circle guide

Posted: Sat Jul 19, 2014 8:17 pm
by GlenC
The rod is 1/4" hardened steel... it is quite stiff. I cut a 13" circle and was pleased. It will probably be good to 36" or more...

Re: Plasma Circle guide

Posted: Sun Jul 27, 2014 8:03 am
by BrassPat
That's a really nice job, I'm trying to build one with an open center with a pointer.

Re: Plasma Circle guide

Posted: Sat Aug 16, 2014 9:46 am
by mcoe
Very nice design, probably cheaper than buying one, them things are expensive. :)

Re: Plasma Circle guide

Posted: Sat Aug 16, 2014 12:42 pm
by GlenC
Thanks,
Everything was ordered from McMaster-Carr .... probably spent $50 with a couple revisions!

Should be easy enough for the center pin, but I wanted the magnet to help keep the torch vertical that is the main reason for the needle bearing holding the torch.

Re: Plasma Circle guide

Posted: Sat Aug 16, 2014 1:46 pm
by mcoe
I like that. I built my own tig torch holder with one of those magnets and some scrap. I literally got done doing a cut out and looked at a couple pieces and thought that would work for a tig torch holder welded them and there it is. I didn't even finish it up. It looks nasty but works great. :D

Re: Plasma Circle guide

Posted: Sun Aug 17, 2014 6:03 am
by TRACKRANGER
Pretty Impressive Glen. Really nicely made, and using the magnet for the pivot is just perfect. Great job.

Re: Plasma Circle guide

Posted: Fri Oct 03, 2014 11:45 pm
by hawkdriver623
Could I get a parts list?

Re: Plasma Circle guide

Posted: Sat Oct 04, 2014 12:08 pm
by GlenC
This is basically what I got from McMaster-Carr, there is a bolt and nuts I had on hand...
  • 1- 5905K28- Steel Needle-Roller Bearing, Open for 1" Shaft Diameter, 1-1/4" OD, 3/4" Width
  • 1- 6435K21- One-Piece Clamp-on Shaft Collar, for 1-1/4" Diameter, Black-Oxide Steel
  • 1- 6384K47- Steel Ball Bearing, Plain Double Sealed for 7/16" Shaft Diameter, 1-1/8" OD, 3/8" Width
  • 1- 6435K19- One-Piece Clamp-on Shaft Collar, for 1-1/8" Diameter, Black-Oxide Steel
  • 2- 6435K12- One-Piece Clamp-on Shaft Collar, for 1/4" Diameter, Black-Oxide Steel
  • 1- 6628K23- High Strength 1144 Medium Carbon Steel Rod, Extra-Strength, 1/4" Diameter, 1' Length
  • 1- 2868T61- SAE 863 Bronze Sleeve Bearing, for 5/16" Shaft Diameter, 7/16" OD, 3/8" Length
  • 1- 5685K28- Encased Ceramic Round Magnet with Hole, 2-5/8" Diameter, 3/8" Thick, 82 Pull lbs