[Elecraft] Mag loop bender

[Mel Farrer]

OK,  enough,
If you don't want any kinks in it.  You should slowly fill the tube with DRY sand and tap it until it it is packed full THEN proceed with the bending.    IF you have packed the sand tightly the bend will resist kinking.  I have used this for bending tubing over a pulley with good results.  The pulley for the bend radius you need should to be progressive from large to final. For me it took three sizes to get to the final radius without kinks.  Works with aluminum and copper.  Does not work on conduit.

Mel, K6KBE


      From: P.J.Hicks <hickspj467 at comcast.net>
 To: ELECRAFT <elecraft at mailman.qth.net> 
 Sent: Tuesday, October 4, 2016 3:33 PM
 Subject: [Elecraft] Mag loop bender
   
Bending tube for Mag loop. 
Simplest way is to get a piece of plywood about 3' to 4' square. Cut an arch of 18" in a 2" x 6" or 2" x 8" and nail it to the plywood. Next cut an another arch from plywood of about 19" or 19 1/2" and nail it to the other arch forming a channel. Use the channel as a bending guide to slowly bring the tube into shape. 

PJH, N7PXY 
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