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Showing results 1 to 6 of 6
Search took 0.00 seconds. Search: Posts Made By: Besser

Forum: 55. Dust Management

Tue 15 December 2009, 19:49

Replies: 17

AIR in AIR out - analysing the air flow at the collection point

Views: 24,122

Posted By Besser

Jack, this was on my mind as well. but then the...

Jack, this was on my mind as well. but then the curtain is less effective by the amount of shop air you are introducing.

I'm thinking of a new foot design to move the aperture opening closer to...

Forum: 55. Dust Management

Mon 14 December 2009, 20:52

Replies: 17

AIR in AIR out - analysing the air flow at the collection point

Views: 24,122

Posted By Besser

While a 4" extraction duct suits a balance...

While a 4" extraction duct suits a balance between drag and buildup, the inlet works on the cubic volume rule. The further the stand off of the dust foot the greater the motor size to maintain the...

Forum: 55. Dust Management

Tue 15 September 2009, 17:39

Replies: 17

AIR in AIR out - analysing the air flow at the collection point

Views: 24,122

Posted By Besser

Greg the "exit pipe" I was refering to is the...

Greg the "exit pipe" I was refering to is the ducting tube that comes off the foot..

I do like the minimal complexity of the setup and I suppose if it works don't change it.

Forum: 55. Dust Management

Sun 06 September 2009, 06:36

Replies: 17

AIR in AIR out - analysing the air flow at the collection point

Views: 24,122

Posted By Besser

Hey Greg, like the pic (and flags) do you do deep...

Hey Greg, like the pic (and flags) do you do deep plunges? How does the dust exit those deep pockets?

Seems to be a clear passage between the exit pipe and the "front door"

Forum: 55. Dust Management

Wed 19 August 2009, 19:04

Replies: 17

AIR in AIR out - analysing the air flow at the collection point

Views: 24,122

Posted By Besser

I think Jeff has got it in terms of Air speed,...

I think Jeff has got it in terms of Air speed, the lower the cross section of foot clearance, the higher the air speed will be for the same vacuum pressure (remember the old PV=nRT). I also like the...

Forum: 55. Dust Management

Mon 17 August 2009, 20:56

Replies: 17

AIR in AIR out - analysing the air flow at the collection point

Views: 24,122

Posted By Besser

AIR in AIR out - analysing the air flow at the collection point

Removing the dust from the cut and cut area seems to rely on the material laying in suspension in the air mass within the curtained foot print and that air mass being extracted. What I find "strange"...

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