gketell
Local Chapter Leader
Dave_M asked about vacuum chucks in our June Meeting thread. Since I didn't want to pollute that thread I thought I would start a new one.
Here is a crappy drawing of how to assemble a Vacuum Chuck.
The filters are just big fuel filters. They can be had on ebay pretty cheaply.
The vacuum pump can be almost anything depending on the wood you are using. The more porous the wood the bigger the CFM rating you need. For really dense wood the Harbor Freight turbine vacuum pumps would work but the noise would be atrocious. Most people go hunting for a used Gast 0522 or 0523 pump. They are oiless and quite and STONG.
You can make your own Rotary Adapter (mis-labeled "spindle adapter") if you want but after 2 home-made versions broke I finally bought one. If you want to know how to make them just let me know.
The blue line is pretty much any flexible air compressor hose or thick-walled PVC hose you want to use.
If you have any questions I'm happy to talk about it. I'll post later about the actual chucks.
GK
Here is a crappy drawing of how to assemble a Vacuum Chuck.
The filters are just big fuel filters. They can be had on ebay pretty cheaply.
The vacuum pump can be almost anything depending on the wood you are using. The more porous the wood the bigger the CFM rating you need. For really dense wood the Harbor Freight turbine vacuum pumps would work but the noise would be atrocious. Most people go hunting for a used Gast 0522 or 0523 pump. They are oiless and quite and STONG.
You can make your own Rotary Adapter (mis-labeled "spindle adapter") if you want but after 2 home-made versions broke I finally bought one. If you want to know how to make them just let me know.
The blue line is pretty much any flexible air compressor hose or thick-walled PVC hose you want to use.
If you have any questions I'm happy to talk about it. I'll post later about the actual chucks.
GK