Dust shoe bristles

[dstivens]

the only problem i had with super glue was it creeped up the bristles a bit so maybe a resin/epoxy might be better or even hot glue as mentioned.

[cropwell]

Does it have to be bristles ? Could a sheet of vinyl be sliced to make a comb ?

[cncJim]

Does it have to be bristles ? Could a sheet of vinyl be sliced to make a comb ?

I think this is the method I will be trying.

Cut a strip of vinyl, double sided tape to stick it down, cut very thin "combs" using a metal ruler and sharp blade, layer maybe 2 or 3 strips and glue/attach to the shoe.

Jim

[EddyCurrent]

Jim, do you think that is more efficient with regard to suction ? what is the advantage over bristles ?
I tried it with one layer of plastic but large gaps opened up as the shoe went down.

[cncJim]

Hey Eddy - I would think bristles would be best as far as suction goes? - But I like the idea of giving it a try with plastic. I would also try and cut the combs as thin as possible (double sided tape should help with that) and then have a few layers to prevent/minimise the gaps you mentioned. One problem I have seen with some diy plastic jobs online is the combs being sucked into the shoe/cutter so I would need to consider that!
For me, my main aim isn't best/most efficient suction, it just to stop the majority of the wood chips being launched around my garage.....

[cropwell]

At the moment my machine is lying dead, Its beating heart of a BoB stilled when the magic smoke escaped. When it lives again, I will have to try out the drag knife, cutting A4 sheets of thin vinyl with rows of closely spaced parallel lines. Then I can divide the sheets down the middle, to make combs fine enough for mermaid's hair.

I saw one good idea - to hinge the front section of the comb. It made tool changing easier.

[dstivens]

a hinge is a good idea. I based my design on this http://www.kentcnc.net/nc/products/9...dust-shoe.aspx
using magnets.

[firetrappe]

I made 2 attachments for my DIY shoe, one with bristles and one with plastic.

I figured the clear plastic would be nice so that I could watch the tool cutting. The trouble is, if you cut loads of strips then you lose the transparency as the cut edges of the plastic refract (I think that's the word?) the light. With 10mm wide strips as I have then, like Eddy says, large gaps appear when the shoe presses onto the workpiece. I toyed with the idea of adding another layer of strips inset from the existing ones, but the other attachment with the bristles worked that well that I've never bothered.

Si.

[charlieuk]

Yea I was a bit worried that PVC or that type of thing would not be stiff enough to resist the vacume but it would be nice to partly see through it to see how it was going. I will have to look into what thickness PVC is available