Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

 
 
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Posted to rec.crafts.metalworking,alt.machines.cnc
Mikester
 
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Default Vacuum part holding for milling

What's the rule of thumb for amount of vacuum/pressure required to hold
a flat part for milling operations?

I need to machine up aluminum and plastic plates.

Aluminum plate 4"x4" square
flat plastic puck 2.5" round

Can anybody point me to some links for low cost DIY alternatives to
buying a plate/pump set?

TIA, Mike

 
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