Just to get an idea on the break point for roll your own.
Do a search for "cnc lathe" on ebay. Sort by price.
Remember if you are not doing this for profit you can trade time for
power. I mean you can use a less capable machine (larger capacity, low
HP), take small cuts all night long, the robot don't care. All you would
pay extra for would be electricity.
The big advantage in rolling your own of course would be every engine
could benefit from lessons learned from it's predecessor. Just modify the
CAD file and feed it to the machine. Every engine built on demand and
custom. Lighter, stronger from practice, not speculation.
You now appear to be getting price down by locking your design so you
can get volume and one unforeseen problem (heat cool warpage, cracking
bells etc.) could come back and bite you in the butt. Economy of scale can
be tricky in developmental work.
[EMAIL PROTECTED] wrote:
> We're having it requoted with 347SS. Qty=12
>
> Dan
>
> In a message dated 8/17/02 10:08:38 PM, [EMAIL PROTECTED] writes:
>
> << > Our machinist's price quotes for the engines were excessive.
> >Options are being evaluated.
>
> Did you get a quote for 316 SS as well as the high temp alloy you were
> looking into?
>
> How many units did you ask for?
>
> John Carmack >>
>
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>>>>>>>>>>>>>>>>----<<<<<<<<<<<<<<<<<
........ Alex Fraser N3DER .........
......... [EMAIL PROTECTED] .......
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