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phil_o
04-20-2015, 05:07 PM
I've designed a dust shoe that performs very well. It took a few modifications to refine the design. Since the opening is small most of the vacuum is directed to the chips. However, I am not satisfied with the brush and how it is attached to the shoe.
The body of the shoe is vacuum formed and attached to a polycarbonate plate.
http://www.talkshopbot.com/forum/attachment.php?attachmentid=24827&stc=1http://www.talkshopbot.com/forum/attachment.php?attachmentid=24828&stc=1http://www.talkshopbot.com/forum/attachment.php?attachmentid=24829&stc=1 My current brush design is similar to the one that came with my shopbot. I've attached it with double sided tape and pop rivets. It works OK but it hasn't held up in the long run..
I'm hoping someone can suggest a more suitable brush and method of attaching the brush to the shoe.

Phil
Brady Watson
04-20-2015, 06:43 PM
90 degree aluminum angle is easy to work, drill and screw/rivet.

-B
phil_o
04-21-2015, 07:31 AM
I need a material I can easily bend into a circle.

Phil
Brady Watson
04-21-2015, 07:36 AM
If you scarf it, it bends right around. Also, if you get something that isn't too thick, it will bend by hand without scarfing.

You could also just cut a ring out of PVC, acrylic, wood or whatever & screw to that.

-B
scottp55
04-21-2015, 07:57 AM
Off topic slightly;
Brady,
I want to make a 3" bristle dustfoot for the Desktop for my longer bits/deeper cuts.
Would any of these be suitable for me using a Fein II Hepa?
http://www.mcmaster.com/#strip-brushes/=wuik5o
Thanks,
scott
Brady Watson
04-21-2015, 08:34 AM
Scott,
I am sure most will be fine. I think the early PRTs just used a door sweep with white strip at the top. Frost King @ Depot.

-B
Burkhardt
04-21-2015, 10:36 AM
I need a material I can easily bend into a circle.

Phil

Or maybe not. You can cut a full or partial narrow (maybe 1/2" wide?) hoop or frame from 3/4" plywood and screw or staple the PVC to the outside. That is kind of what I did for my dust boot. I am using the same transparent thick PVC.
phil_o
04-22-2015, 07:52 AM
If you scarf it, it bends right around. Also, if you get something that isn't too thick, it will bend by hand without scarfing.

You could also just cut a ring out of PVC, acrylic, wood or whatever & screw to that.

-B
Brady, thanks for the suggestions. I plan to try a short length of PVC pipe.