Top Shop Tips

[dprue1]

Can anyone tell me if there is a ratio between the size of the garbage can used to create the home made chip collection and the cfm of the dust system? Space is at a premium in my little garage and I would prefer to use a small can rather than a full size one. My system is just under 900cfm and is used one tool at a time.

Don't really want to build the thing to fit a small can and find out it does not work. I do like the simplicity of the design, everything is already in the shop. I have been trying to get my mind around the information I gathered that suggested the input and output cfm should be different, if only slightly, by stepping down one of the two diameters at point of entrance or exit thus creating pressure imbalance and dropping airborne content.

Assistance would be greatly appreciated by this rookie.

Dave

[JL North GA]

I made a second stage chip collector for my old DC.   I really didn't worry about size so much as air tightness.  I found a plastic 30 gallon drum with a snap ring lid.  I ended up using 4" PVC fittings (toliet bowl and similar) that I bolted to the plastic top.  I did have gasketing material.

I used a 30 gallon drum because that was a reasonable size.  It would hold a fair amount of chips and still have enough free space above the chips.  I think anything larger than a 30 gallon maybe too large.  Much smaller than a 30 gallon maybe too small.  The 30 gallon seemed just right.   It worked fine for me for several years before I upgraded to a cyclone.  The current owner of my old DC still uses it.

[EasyEd]

I use an old shop vacume canister for chips. It's about 10-12 gal.(guess). I know if I let it fill too much, chips start going through the DC(2hp)  impeller. I just use a 4" hose. I use the Lee Valley lid.

In my case I  would not use anything much smaller due to having to empty the thing.

[rjrutter]

Dave. The best thing you could do if possible is to have the outlet dia. larger than the inlet. Better yet, build a Wood mag cyclone with a drop box. Pentz cyclone is much better but much higher.  Ron.

[John Gray]

I have a the DELTA 50-760 1.5HP 1,200 CFM Vertical Bag Dust Collector and made a 35 gallon trash can dust separator for it and it works great.  The 50-760 has room to put you separator has room on the frame to house your separator can.

http://www.amazon.com/DELTA-50-760-1-5HP-Vertical-Collector/dp/B00078V9KA/ref=sr_1_1?ie=UTF8&s=hi&qi...

This is the can separator I made.

http://www.cgallery.com/jpthien/cy.htm

Hope this helps you,

John Gray

Effingham, Illinois - USA

[mathisonr1]

Dave, I wouldn't worry too much about ratio  (don't go crazy though). The first seperator that I built I used a 30 gallon trash can to use with my 6.5 hp shop vac, it worked great.

Rick

[Raul S.]

http://www.cgallery.com/jpthien/cy.htm 

      Not necessarily the answer your looking for but with this you could make any can into a colector blus due a better job !  I rearanged my harbor freight 2hp. to use this design on a 30 gal can. with an  bill Penz site add on. Im really happy with it but would like more power. I run 4in sewer more power 6in.