Shopsmith Forums

Wow!
What is the material? Do you know any physical properties?
What do you think of the feasibility of making a rack? How long would the segments be?
Jack

Don,
I also bought p/n 1312008 from RonovoParts.com. It as JPG described.
Renovo seemed willing to look for the rack, but needed a number, not a description. When I checked deltamachineryparts.com for the rack for a 14-070 DP, it did not have a part number listed for the rack item number. If you ...

Great thread. Thanks to all.
Jack

GG
What you are missing is the the radial and axial vectors are perpendicular. It is impossible for them to interact.
Try this experiment. Put your car in neutral, approach it from the passenger door and push toward the driver door. You will never reach the street.

GG,
I was thinking as the rotary (radial) velocity increases, the vertical (axial) velocity remains constant thru the cone, reaches a stagnation point (goes to 0) then reverses to exit. The axial response must be due to downstream pressure conditions.

Dennis,
Yes ss vac is the fan which was built into the Mark 7 headstock.
Yes the ss vac is very similar to a vacuum cleaner, except the motor spins in either direction with the same impeller output flow
The ss vac would inject flow into the cyclone air stream. An outside flow source would be ...

GG.
I agree With you, BUT:
if your reference pressure is ambient, you could be on the pressure side of the pump and still be in vacuum (minor quibble)

if you believe that your plastic bucket is maintaining a perfect vacuum you should do a pressure test. If i can seal the dust box as well as your ...

GG,
I can't see any difference between being on the pressure side of the ss vac, and being on the suction side of a shop vac. I am not assuming the ss system will drive a cyclone, a boost will be needed or dimensions of the cyclone will need to be adjusted to maintain velocity.

GG,
My thought is replacing the 5g bucket with a 20g bucket, the Mark 7 dust box. The problem then becomes ease of cleaning out the chips.
You have a cyclone and I don't, let me know what you think.

Again, thanks.
I have some spray rubber that I've been itching to try as a sealant.
I'll have to think about creating a large vacuum vessel. There could be some surprises there.