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I've just built a 5" gauge Lion Boiler, don't know if your boiler is a similar size? it sounds very much like your not getting enough heat into the material quick enough. Copper soaks away heat very quickly, preheating the copper away from the joint may help. The flux will go off if heating...

Clogs, Yes I have a Bugler liner and it's great, I used it on my 3" scale tarction engine however, for small tight curves and radii on models I didn't get good results hence my reason for an alternative. I'll continue to use the Bugler on larger scale and full size projects and my lining pen on...

Olympic, thanks for your feedback, I was hoping that method would be of interest to someone, you do need to take your time with it, I've found that with patients very accurate results are possible. Thanks Nigel

John, Yes that's exactly the type of draftsman's pen i used the ruling pen you mentioned, I wasn't sure of it's proper name, worked reasonably well but as I said it gave a kind of high build up of paint though more practice with it may have provided better results. Brian, pleased you learnt...

Hi John, Thanks for that info, I hadn't known about of heard of Leroy pens. Regarding my lining pens larger nibs there's a balance to be had with respect to paint viscosity and wire diameter, get this right and you get a good even line width, if there's too much paint flow then the line width...

I can across some 'blunt dispensing needles' on an internet auction site, very cheap to buy and thought they could be used to make a lining pen. So I bad a go and after some experimentation got reasonable results, I just need to learn more of the technique and plenty more practice. I made some...

Hi Kadora I have found the seller, thanks for your info. Lots of interesting stuff there. Cheers Nigel

Hi Kadora Very nice, looks very well made. I am interested in building a similar furnace. May I ask you the details of your heating elements. I have seen some on ebay from china but from memory they are 0.2 ins dia., i am not sure if they would be suitable. I am in the UK, not found any...

Hi Very pleased to read this thread and find Freecad, thank you. After watching a few tutorials I found getting started with freecad easy. Allot to learn yet but it looks very functional, editing much easier than others I have tried. I think I will be staying with freecad. with others I...

Hi New to the Forum My name is Nigel Walton; I live near Alford Scottland but work many months of the year in Singapore, this give me the luxury of 2 workshops, a full size at home, 6" center lathe, VMC mill, Elliot shaper etc etc, and a miniature 'Sherline' workshop in Singapore. I recently...

Hi AG My can't be sure about my motors being bipolar or unipolar, they are 4 wire units, not sure if that means the bipolar or unipolar is pre-wired. They came with the controller as part of the Hongkong Sherline conversion kit I have put to one side, I think I can recall something about them...

Hi I converted my sherline, after a long and frustrating journey, the Gecko 540 with a PMDX PCI card was the answer to my problems, this works perfect. I live in the UK but work in Singapore several months of the year so have a workshop in both locations. The G540 was 350 SGD about 175GBP. UK...