Investment casting of SLA (ACES) patterns

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Dear RP'ers

We have experimented with some very small parts, built in SLA (ACES),
which showed some cracks in the final product. I am still
investigating the nature of the cracks, but it seems that the cracks
could have been there before the investment casting.

Is there anyone which can share their experience of investmentcasting
of SLA patterns ?

I also am not sure of the burn-out temperature to be used.

Kind regards

Deon de Beer

 Deon de Beer
 Department of Mechanical Engineering
 Technikon Free State
 PBag X20539
 Bloemfontein
 9300
 South Africa
                                         
 fax 27 51 507 3199

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