[Louis Kriedemann]

Finally I have managed to make a half decent coil housing for my Barracuda
Not perfect yet, but getting there

[Tony Curnick]

Are you going to vac form from that pattern Luuk?

[Louis Kriedemann]

that one is vacuum formed except for the ears
I have tried numerous times but the ears always end up a disaster, so this time i made a seperate set of ears and they are fixed with epoxy

[Paul van Heerden]

That also looks good. I have been thinking of trying vacuum forming myself

[Tony Curnick]

Very good idea Luuk!!....I would maybe just fill in a radius at the point where the ears meet the base to remove the tweak point, the vac process may create a natural web in that area for you..

[Louis Kriedemann]

Very good idea Luuk!!....I would maybe just fill in a radius at the point where the ears meet the base to remove the tweak point, the vac process may create a natural web in that area for you..

thanks Tony, will try that.....it makes a lot of sense
the abs does not draw down between the ears, but makes a bridge between the two
but I will keep on trying till it works properly

Landuse, the equipment and all is really simple but it does take a bit of pratice
it is fun though.....making stuff

[Tom White]

Looking good Luuk now I know where to ask help went I want to build a coil. Tom

[Tony Curnick]

I'm not sure how your vac form system is configured Luuk. We used to drill 1 to 1,5 mm holes into the corners at 45 degrees through the pattern to the base at points where we needed more vacuum to get rid of bridges ,we also found that mounting the pattern on fine expanded mesh helps to spread the vacuum and prevent sealed off areas....finally you may have to build a vacuum storage tank which speeds up the forming time...

[Louis Kriedemann]

Now there is some info that I can use!!!
thanks a stack. if I knew you were a guru at this I would have knocked on your door long ago
Now see what you've done!!!!   you've made my hands itchy
need to make a specific coil housing template for the spider weave coil for the bara, so I will try and utilise this new found info

[Tony Curnick]

Anytime Luuk..We also made our vac patterns out of superwood then spaced them up slightly from the table on the vac former to give us a bit more depth ..Then using poly ethelene sheet we would make a female mould on the vac former and cast resin into this mould to make our production patterns. This method is quicker and it's way cheaper that producing a silicone mould!.you will however find that PE 300 will shrink slightly so a compensation should be factored into your wood pattern...The wounderfull thing about Poly ethelene is that nothing sticks to it so you shouldn't need a release agent....

[Demian (Z-X-T)]

Very neat...