Vacuum Chuck Seal

Re: Vacuum Chuck Seal

Joel Hunnicutt

>I use a mouse pad with a small hole cut in the center. I found a thin mousepad that seems to work pretty well

Re: Vacuum Chuck Seal

Mark Mandell - Gone Round In Jersey

>I make the ringseals out of the thin closed-cell foam the sell for handtool drawer liners. Although a bit pricey ($15/roll at HD), it's durable and holds well with either double faced tape or spray adhesive. At about 3/32" thickness with a grained surface it cushions but doesn't wiggle. Obviously a roll (20" x 6 or 8') will last you a while.

Mark Mandell

drop the 2 for mail

Re: This makes a great Vacuum Chuck Seal

Al Crandall

>Some mouse pads work really well and some don't. You just have to experiment. For a seal on a chuck which is bigger than can be covered with a mouse pad I suggest using a sheet foam product called Funky Foam. I found it in a craft store and comes in very bright colors, is about 10 x 14 inches and 1mm thick, and costs about 79 cents. I believe it is also available with a self stick back. The first time I used this for a gasket was at a demo at the turning club. I didn't have a bleeder valve in the system yet, and thought that I was going to have to break the bowl apart in order to get it to release from the chuck after unplugging the pump. Two of us pulled, pried, bumped and twisted on that bowl for well over a minute before the vacuum bled off enough to release. It was pretty embarrassing for me, but a great testimonial to Funky Foam as a gasket material.

Re: Vacuum Chuck Seal

John Trant (aka Boxes-n-Bowls)

>I use 2 mm thick Fun Foamie sheets (9"x11") which cost less than a buck. It makes great gaskets for a variety of uses. This material is a closed cell foam sheet made to be cut up for kid's projects. They can be found at most craft stores (e.g., Michael's and JoAnn's) in a variety of sheet sizes, thicknesses, and colors. The 6 mm thick sheets are a bit too thick but are useful if you have textured surfaces. I glued the 2 mm gasket to my vacuum bell but you can elect to simply pinched the gasket between the bell and the vessel.

John

Re: Vacuum Chuck Seal

Peter Teubel

>After much searching/experimenting, I've found 1/8" thick neoprene sponge work the best for me. Its almost itentical to the pads that Oneway sells for its own drum chucks. I get it from a place called Industrial Rubber & Plastics in Haverhill, MA. A large sheet (48" x 60" is about $50.

Re: Vacuum Chuck Seal

Mark Kauder

>One of the best materials is the fake chamois that they sell at Auto Supply (Auto Zone, etc) for drying your car after you wash it. It has enough give for a good seal, but not so much that the bowl goes off center when it collapses.

Mark

Re: Vacuum Chuck Seal

floyd knapp

>I find that a 70 cent table place mat from Big Lots works well for me. They are about 1/8 " thick.

Floyd

Re: Vacuum Chuck Seal

Greg W. in NC

>I bought a sheet of self sticking foam pad from Walmart....50 cents. It works very well! I think this is the same foam they mentioned as being at Michaels or other craft stores.

Re: Vacuum Chuck Seal 

floyd knapp

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Re: All I see is the top of head. Hair seals vac?

Al Crandall

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