[R0bbie]

Hello all,

I have just completed the second version of my dusts boot.

The first version was supported from behind (see first picture), after I raised the spindle to get more Z height it conflicted with the Z carriage.
For clearness the dust boot is supported by the X axis.

The support for the new version had to go through the spindle brackets, the height is adjustable from the top.

For easy access the front of the dust boot slides over two pins and is being held in place with four neodidly magnets (AVE:wave.


From now on changing bits and setting Z height will be a lot easier.


Kind regards,

Rob.

P.S.
Do you think its time for a new spoilboard ?

[HelicopterJohn]

Hi Rob,

Very Nice design. I know you will enjoy using it. Thanks for sharing. Those magnets have given us a lot of options in the world of dust shoes.

John

[adam_m]

Looks great R0bbie! Can I ask what your using for bristles and how you installed them?

Does anyone know if there has ever been some flow testing done on dust shoes that would help when designing to maximize pickup?

I've seen all kinds of designs but it seems that we are all dealing with the same issue as the bit is fixed and we're looking for the most efficient pickup, I would think that would be irrelevant of the duct sizing.

Adam,

[R0bbie]

Hi Rob,

Very Nice design. I know you will enjoy using it. Thanks for sharing. Those magnets have given us a lot of options in the world of dust shoes.

John

Thanks for your kind words John,
I have used the booth for the first time today for resurfacing my spoilboard
Works great, I'm very happy

@ adam_m,

I am from The Netherlands Europe, and over here we don't have mailboxes in front of our house, we just have a slot in the front door with a flap on the outside for the postman to drop our letters in, like this,

Attachment 349406

To keep the cold out you can buy this,

Attachment 349408

You put this on the inside of you frontdoor, but if you take it apart it holds two nice bristles

Regards,

Rob.

[HelicopterJohn]

Hi Adam,

When I designed my dust shoe I made the bristle circle as small as possible. I also made several bottom plates with different length bristles for different types of work. By making the bristle area smaller it allows you to get closer to the edge of your table without loss of vacuum. Of course, I used magnets to attach the bottom plates. I could be wrong but I think making the actual suction area smaller would make for better vacuum.

I really enjoy these types of threads where we can all share our ideas and concepts.

Thanks again for all you guys sharing your knowledge with the rest of us.

John

[adam_m]

That's my thought as well John make the area as small as possible for better suction,

I was milling up some 6061 this weekend and my dust shoe was just a total failure, there's swarf everywhere, I'm still picking it out of my shorts... lol! here's a link to a video I shot. if anyone is interested.
https://youtu.be/vqy0xV0aHac

I knew my design wasn't the best and I really appreciate being able to see what's going on under there as I'm still on a learning curve so, I think my next project will be a new shoe design.

I thought since there are many different designs out there I was curious if anyone with more knowledge than I had done some research on how to improve on the basics. I was thinking along the lines of some type venturi design but that would entail a more vertical approach directly over the bit but maybe also some type of tunneling effect would work as well? Senna made a nice looking design with a tunneling effect and a small radius around the bit (http://www.cnczone.com/forums/diy-cn...27975-cnc.html) and I also like Fretman's (http://www.cnczone.com/forums/diy-cn...75-cnc-12.html), its compact, but alas no 3D printer here...

Finding brushes also is an item I've been struggling with. Since most shoes are rounded how are people bending and installing in the their shoes? are people cutting them out of something else? Robbie's are great but his house is going to get cold in the winter... lol!

Adam,

[HelicopterJohn]

Hi Adam,

Go to 10:39 on the time line of this video and you will see my dust shoe. It also has information on where I purchased the brushes. I used my Shopbot router to machine a circular groove of the required width so that I could use a screwdriver to press the brush into the groove. I purchased 3 different lengths of brushes and made 3 bottom plates. I have not had any issues with the brushes falling out. I made the plenum chamber by cutting individual pieces of 1/2" plexiglas and stacking them to get the correct height. Then the bottom plate attaches via magnets as shown in the video.

https://www.youtube.com/watch?v=4WQ8KcTSKyQ&t=728s

John

[Jon.N.CNC]

My supper smooth swinging boot made from old bits (round rail carriage originally off the z, Locks beautifully utilising the oil hole lol doesn't mark the round rail either )

High Density PU foam skirts work very well, Lock a couple of mm of the part, Easy to glue on with PU glue and pull of and stick back on. I got over 9 months out of my last version before I had to stick another on.

[Mopar71]

Hi! Here is mine design. VCarve and vector files in the description.

https://youtu.be/T1K1gFbxv2M Cheers Eric




Skickat från min iPad med Tapatalk