The wheelium disc sander that Wonk refers to is a 12" disc with
integral hub. The first try, we "short poured" and decided to break
it up with a 16 pound sledge, so we laid it across a couple of bricks
and proceeded to whale on it. After Joe and I got tired of breaking
bricks, we examined the damage. The 3/8 inch thick partial disc was
hardly warped, we could easily have machined off the warp and hammer
dings and had a 5/16 inch thick semicircular plate. That's tough
stuff!
I was no great fan of aluminum before this, but this taught me how
strong wheelium can be. Now, I'll make anything I need from
previously cast auto suspension/wheel aluminum without reservation.
Rex
On Mon, Dec 27, 2010 at 2:48 PM, Wonk <tiwonk@yahoo.com> wrote:
> Wheelium has been tested and now being used for a 10" or 12" disc sander by the Portland group, and I have been using ZA-12 for many years and find that it works easily and is strong. I agree that it would make a satifactory backing plate!
>
> Cheers Wonk
>
> --- In gingery_machines@yahoogroups.com, Matthew Tinker <mattinker@...> wrote:
>>
>> Has anybody any thoughts on using ZA12 or wheelium for chuck backplates? I can't se a reason not to, but i'd like your ideas on the subject!
>>
>> Matthew TINKER
>>
>> CNC conversion 1944 Colchester Lathe build-up log
>>
>> http://www.cnczone.com/forums/showthread.php?t=35519
>>
>>
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>> [Non-text portions of this message have been removed]
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