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Joe

Thanks for the input.

What type of Pvc are you using? Type 1 PVC solid, or an expanded pvc like celtec?

This may help in some questions you may have as far as fixtures with a small PSI vacuum pump.

https://plus.google.com/u/0/collection/84wdFB

This is a similar vacuum set up for a Shopbot desktop. 30156 works great!

Stick with an American made machine. Don't go to the cnc manufacturing dark side. I have modified a Chinese machine vacuum system, and learn from my experience you will have more headaches than you...

No offense taken. I just never cut umhw and at 1.5 thick. Me, cutting cabinet parts makes this part is ridiculous size and shape to be cutting on a router. As for the vacuum fixture the foam is meant...

No advertisement! I have never cut UHMW and it seems like I could come here and ask for an idea on different techniques on ways to cut.

James


Sorry I forgot to answer you question about the bit.

26977

Thanks Scott!

Thanks guy's for the input. I did try cutting this part with the use of vacuum, and gasketing. I made a fixture to cut two of the parts pictured, and I will say i did cut two of the parts in the...

I have a customer that sent me this part and wants to cut it out of uhmw and the size is 5.5" long X 1" wide X 1.5" thick. The part cannot be tabbed and it cannot have an onion skin due to...

Keith

We have done several vac tables for Shopbot machines and we have several different methods of holding small/narrow parts with vacuum. You can contact me if you like at...

Angus

Who from Shopbot will be attending?

Here are some pictures of cutting some fixture gasket.

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I have moved away from the typical "grid" style for the desktop machines and went with a pocket style vacuum table. I have tested this table out and it works great. After testing we sent this table...

John

I am like the kid in the candy store as far as the gasket goes. I have cut our gasket with the engraving tool and got a pretty good edge (the cheaper way to go), and I also cut the gasket...

What type of tuning? design would be no issue

The CFM on our pump is 4.0. here is a link to the specs http://www.gastmfg.com/product_detail.aspx?ProductID=117&ProductTypeID=20

Scott

Nice that you came over to the dark side:)! The Gast pump I used got hot running the vac base and circles.

Scott

Yes the product is called grab, http://allstaradhesives.com/cart/product_detail/zbc_03_lf/53 this is the link to it. I am confident that the 1" will hold. I will post more when I get the...

Scott

I ran 2 passes .125 each no skin cuts or anything like that. i got some quick connects at Lowes 1/4 od and 1/8 in MIP with 1/4 inch nylon hose. I used a Onsrud 65-026 is the number I...

Here I made up a vacuum table for a Desktop model using 3/4 HDPE for the base and 1/2 HDPE for the fixture cutting 1.5 circles out of .25 HDPE. Using a 1/4 HP Gast psi pump.

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Scott

For a cheep fixture you could go with HDPE. This link is for a 48" piece but you can find smaller on amazon and ebay

http://www.eplastics.com/HDPEBLK0-750SR24X48

What do you plan on cutting??

Kevin

The plastic or aluminum would be no issue to cut with our gasket techniques. But the plastic material being flammable, this something I have no experienced with. With the right feeds and...