You may want to consider completely filling your Copper tube with ordinary table Salt, tightly plug both ends, make the bend and then dunk the finished part into a tub of water and soak out the Salt. Be sure and anneal the tube first and you still may have to make a bending jig out of a couple of pieces of Hardwood to get the correct radius in the bend. Best of luck! Al --- Gmx22@xxxxxxx wrote: > Hi all, I don't normally write much here but do read > with interest most of > your comments. I am getting on well with a simplex > but can't seem to get the > super heater right. The people I have spoken to have > two schools of thought. 1 > because it has slide valves Don't use a radiant one > something to do with wet > steam being better. make it out of copper. I have > just come in from the > garage having turned another peace of copper tube > into scrap, lots of heating and > i just can't get the tight bend required to make it > look neat. Other school > of thought is make it radiant using stainless and > use thinner tubing 22g I > think. any thoughts on how to bent copper tube or > where the hell do I get > stainless from, tried GLR and the guys a Polly. I > have seen lots of super heaters > made out of SS and look neat with perfect bends but > nobody can tell me where > they got the stuff. > I have a tube bender but the radius is not small > enough and of course it is > metric 10mm and I am using 7/16 18g copper......... > well I was! I know you > will probably think how has he got this far if he > can't bend copper tube but > things have gone very well up to this point, I just > can't afford to keep > throwing copper in the bin. > Great site keep up the good work > Keith > > > > > > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email > to, > modeleng-request@xxxxxxxxxxxxx with the word > "unsubscribe" in the subject line. > ____________________________________________________________________________________ Be a better sports nut! Let your teams follow you with Yahoo Mobile. Try it now. http://mobile.yahoo.com/sports;_ylt=At9_qDKvtAbMuh1G1SQtBI7ntAcJ MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.