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How to make scale exhausts?

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martin collins 121/07/2020 16:24:19
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461 forum posts
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I have made a couple of VW like cylinders for the side of my jodel but want to make the dummy exhausts, the front one of which has quite a tight curve as it goes round the cylinder head to then face in the opposite direction from where it came. I tried a bit of black wiring but it won`t stay bent to the radius, any suggestions?

Michael Barclay21/07/2020 16:54:51
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145 forum posts
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Diameter of pipe?

martin collins 121/07/2020 17:09:40
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461 forum posts
207 photos

1/4" outside diameter.........

Martin Harris21/07/2020 17:58:02
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9558 forum posts
258 photos

I'd go for aluminium tubing bent using a car brake pipe bender after annealing it but if you don't have access to one, model shops stock small bending springs to support the tubing - without something similar the pipe will kink...

You might be able to fill it with fine sand and bend it round a suitable former but it may not be easy to get a smooth curve.

Edited By Martin Harris on 21/07/2020 18:02:01

leccyflyer21/07/2020 18:20:23
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1632 forum posts
339 photos

I had a 3D printed engine for my Magnatilla. but wanted to add some nice bronzed exhaust pipes for effect -I tried some quite thick wire but it didn;t look how I wanted it, then I had a brianwave and found that silicone fuel tube fotted with CA at each end was perfect add a couple of cableties to simulate exhaust clamps. A quick coating of metallic copper paint and it was just the sort of exaggerated cartoon scale rotary engine I was looking for.

dummyrotaryengine.jpg

Doc Marten21/07/2020 20:04:51
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886 forum posts
18 photos

Copper or brass tube bent over small sockets with an old bike brake cable fed through to stop the walls collapsing will work on even really tight bends, just pull the cable out afterwards. Works for brake pipes.

Edited By Doc Marten on 21/07/2020 20:07:22

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