Wood Shop Dust Collection

Our shop needs *real* dust collection. Here lies the start of plans to rectify that.

Dust Collector

http://www.clearvuecyclones.com/cv-max/13-cv-max-three-phase-with-filters.html

Collector dimensions are approximately 24" x 52" x 96" tall.

5 HP motor (Leeson 132242.00 frame 184TC, 86.5% efficiency)

This dust collector will have sufficient flow with two open gates. Occasional use with three gates open is acceptable. The 'nano' filter option ($100) is recommended. Collector cost with nano filter is $2070.

A whole room dust filter may also be in order.

Clearvue technical support does not recommend mixing wood and metal dust in the same collection system.

Ducting

6" sewer & drain pipe for drops

http://www.lowes.com/pd_5752-1814-S/M+06006++0600_4294765358__?productId=3134721&Ns=p_product_qty_sales_dollar%7C1&pl=1&currentURL=%3FNs%3Dp_product_qty_sales_dollar%7C1&facetInfo=

8" sewer & drain pipe for main lines

Automating this stuff

No one will use it if it doesn't turn on automatically. It *must* be automatic. I've read that using less than 3" ducts with a large 15-16" blower is a problem.

I drew up some plans based on these resources:

• http://www.youtube.com/watch?v=7zlNimxZgqw
• File:Blast gate.doc

This is a 2.5" duct, 'cause I originally planned to use the shop vac. The hole can just be enlarged to 3" w/o other changes. For 4" or 6" gates, the plates should be enlarged, and linkages will probably need lengthening. I made a lot of paper models to get the geometry right. Someone with experience modelling moving parts with CAD could probably do the scaling more quickly.

Machines that need collection

• Table saw (needs retrofit 6" pipe inside and out, maybe 5" and an overhead 3" collector)
• Jointer
• Mitre saw (needs a shroud built)
• Bandsaw (needs front plate of drive wheel replaced with something allowing for collection)
• Belt/disk sander (probably needs a shroud for the belt, or just a better sander)
• Planer (could probably use side shrouds)
• Stationary and pedestal grinders (hot metals)
• Grinder (cold metals)
• CNC mini mill.
• Wood lathe (needs a shroud)
• Drill presses

While all of these machines need dust/debris collection of some sort. Some of them may be better served by water buckets instead of a central dust vacuum. For instance grinders should have their exhausts feed into a bucket with water in it.

Electrical Needs

The dust collector should be on it's own circuit, switched on by a relay. Switches should be conveniently located near machines, or interlocked to certain machines.

Costs

Clearvue CVMAX 3 phase with nano filters $2070

Filter clean out box $80

blast gates

round fiber drum $50

x pieces of 6"x10' pvc pipe

y pieces of 8"x10' pvc pipe

n 8x8x6 PVC wye $83 each

mounting hardware $200

Dylos DC1100 air quality monitor $200

Operating cost estimate:

3.24kw X .12$/kwh = $.39/hour

(filters last indefinitely with regular maintenance)