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ruthmann88
12-03-2007, 01:53 PM
I have a CNC milling machine, and was thinking about creating a custom aluminum valve cover. Do you guys think there would be a market for these if it turns out good? Also is there any heat issues I should be concerned about? Any input would be great.

oldskool3
12-03-2007, 04:13 PM
interest would probably depend on price and finishing. There might be some interest for knock off hartage or ac schnitzer covers or really unique shit. If you are serious about doing this come up with a price and post the topic on US based forums that get more traffic ie:

r3vlimited.com
bimmerforums.com
e30tech.com
etc...

supernaught
12-03-2007, 04:30 PM
I know you have a CNC and probably already know this, but you will need to budget Materials - Quality Aluminum, chemical treatments; Time - template design, custom pattern design (you had better be good with mastercam or similar), time in the machine; Misc - chances of ruining a piece(can you weld aluminum to fix a mistake?), tooling costs/wear. Calculate your ROI and after you've sold a few of the same pattern ^^Hartge or AC Schnitzer^^ then shoot for custom work for more $$$. I have CNCs at my disposal but don't have the time to mastercam anything.

supernaught
12-03-2007, 04:32 PM
also, as long as you use the right grade of aluminum, you should be ok.
Also, this machining should not be done without liquid cooling on the tool. If the parts heats up too much while cutting, your final product will have some serious deformities

Axxe
12-03-2007, 05:33 PM
No market for it.

Chris de la Cruz
12-03-2007, 05:42 PM
yeah not too many e30's that are made for "show"

ruthmann88
12-04-2007, 11:28 AM
thanks for the feedback.
I'm still going to go ahead and make one. Then i'll see what my final costs are and time it took, and see if I can get a reasonable price for them. I'll show you guys pics first when its done.

BmW1819
12-04-2007, 08:41 PM
sounds good :)

supernaught
12-05-2007, 09:44 AM
are you going to use a piece of block aluminum and mill the whole thing?
Or are you going to take an existing cover and modify it?

ruthmann88
12-05-2007, 12:11 PM
mill the whole thing from scratch

90E30i
12-05-2007, 01:54 PM
mill the whole thing from scratch

I would suggest using the stock cover and engraving into it...probably sell better because of low cost...

I'd be intrested if you can make this for me...:D