Changes

== Do we produce enough dust for it to be a problem? ==

== Do we produce enough dust for it to be a problem? ==

A single ripping cut with a thin kerf blade of 5/4 oak plank 8' long will create 10 grams of <15 micron dust. If distributed evenly throughout the shop, this would create a dust concentration of 9.1 mg/m**3, much greater than the ACGIH hardwood limit of 1.0 mg/m**3. In addition, fine dust is difficult to remove. When it finally settles, sweeping causes much of the dust to again become airborne. Vacuuming is only effective when using a fine filter. So the fine dust tends to accumulate, bringing the airborne dust levels higher and higher.  

A single ripping cut with a thin kerf blade of 5/4 oak plank 8' long will create 10 grams of <15 micron dust. If distributed evenly throughout the shop, this would create a dust concentration of 9.1 mg/m**3, much greater than the ACGIH hardwood limit of 1.0 mg/m**3. In addition, fine dust is difficult to remove. When it finally settles, sweeping causes much of the dust to again become airborne. Vacuuming is only effective when using a fine filter. So the fine dust tends to accumulate, bringing the airborne dust levels higher and higher.  

Calculation: https://docs.google.com/spreadsheets/d/18togRk2AZD1RfjSE-m5PjONLy_UOMeJCfzvsSp8gQTg/edit?usp=sharing

Calculation: https://docs.google.com/spreadsheets/d/18togRk2AZD1RfjSE-m5PjONLy_UOMeJCfzvsSp8gQTg/edit?usp=sharing

down drops:

down drops:

* SawStop table saw

* SawStop table saw (consider this mod: http://www.sawmillcreek.org/showthread.php?72133-Changed-Sawstop-DC-port-to-6-inch)

* ShopBot CNC router

* ShopBot CNC router

* Delta 14" bandsaw, router table

* Delta 14" bandsaw, router table

== Automating this stuff ==

== Automating this stuff ==

Initially, the dust collector will be turned on and off manually and the blast gates will be opened manually. After all the wood working machines are connected to the dust collector, we will work to automate the gates and collector motor - turning on a tool will activate the collector.

Initially, the dust collector will be turned on and off manually and the blast gates will be opened manually. After all the wood working machines are connected to the dust collector, we will work to automate the gates and collector motor - turning on a tool will activate the collector. https://wiki.pumpingstationone.org/File:Blast_gate_back.svg https://wiki.pumpingstationone.org/File:Blast_gate_front.svg

== Wood Working Machine Collection Strategies ==

== Wood Working Machine Collection Strategies ==

See spreadsheet for cost details: https://docs.google.com/spreadsheets/d/1DEpszf0J_o_FLTqVH8XopYjlOpG-GloZYVA1FlCf_E8/edit?usp=sharing

See spreadsheet for cost details: https://docs.google.com/spreadsheets/d/1DEpszf0J_o_FLTqVH8XopYjlOpG-GloZYVA1FlCf_E8/edit?usp=sharing

Clearvue CVMAX 3 phase with nano filters

Clearvue CVMAX 3 phase with nano filters  

Filter clean out box  

Filter clean out box  

round fiber drum

round fiber drum (at the base of the cyclone. stores chips & coarse dust)

Dylos DC1100-PRO-PC air quality monitor  

Dylos DC1100-PRO-PC air quality monitor  

For each down drop (5 total):

For each down drop (5 total):

* 8x8x6 45 DWV PVC wye https://www.plumbersstock.com/product/10258/8inx8inx6in-pvc-sdr35-wye/ (verify this supplier before relying on it.) alternative:   http://www.nibco.com/Fittings/Plastic-Fittings/PVC-DWV-Fittings/4810-45-Wye-H-x-H-x-H-PVC-DWV/

* 8x8x6 45 DWV PVC wye https://www.plumbersstock.com/product/10258/8inx8inx6in-pvc-sdr35-wye/ (verify this supplier before relying on it.) alternative: http://www.nibco.com/Fittings/Plastic-Fittings/PVC-DWV-Fittings/4810-45-Wye-H-x-H-x-H-PVC-DWV/

* 6" 45 DWV PVC elbow $8 each http://www.lowes.com/pd_1824-676-6P03_4294765362__?productId=3452924&Ns=p_product_qty_sales_dollar|1&pl=1&currentURL=%3FNs%3Dp_product_qty_sales_dollar%7C1&facetInfo=

* 6" 45 DWV PVC elbow $8 each http://www.lowes.com/pd_1824-676-6P03_4294765362__?productId=3452924&Ns=p_product_qty_sales_dollar|1&pl=1&currentURL=%3FNs%3Dp_product_qty_sales_dollar%7C1&facetInfo=

Shark Guard blade guard for SawStop

Shark Guard blade guard for SawStop

7 pieces of 8"x10' DWV PVC solid core pipe

7 pieces of 8"x10' DWV PVC solid core pipe  

6" flexible PVC hose 25' $92 http://wynnenv.com/products-page/woodworking_hose/pvc-hose/

6" flexible PVC hose 25' $92 http://wynnenv.com/products-page/woodworking_hose/pvc-hose/

Authorize the board to spend up to $4854 on a dust collection system. Authorization for the dust collector expires in 90 days. Authorization for the related equipment (ducting, hardware, ports, etc) expires in 180 days.

Authorize the board to spend up to $4854 on a dust collection system. Authorization for the dust collector expires in 90 days. Authorization for the related equipment (ducting, hardware, ports, etc) expires in 180 days.

==Receipts==

== Receipts ==