Changes

== History ==

== History ==

* Open for discussion.

* Announced: January 3, 2019

* Language Locked: TBD

* Language Locked: January 17, 2019

* Vote: TBD

* Vote: TBD

Lastly, sawdust obscures items on shelves, and reduces the usable space of areas without extra cleaning. Especially in hard-to-reach areas substantial layers of sawdust have settled and are re-suspended when bumped.

Lastly, sawdust obscures items on shelves, and reduces the usable space of areas without extra cleaning. Especially in hard-to-reach areas substantial layers of sawdust have settled and are re-suspended when bumped.

In addition, the current dust collector is very loud due to incomplete soundproofing in the closet.

In addition, the current dust collector is very loud due to incomplete soundproofing in the closet and ductwork.

==Phases of Proposal==

==Phases of Proposal==

For the reasons mentioned above, an upgrade to the dust collection system is being proposed. This is mainly comprised of purchasing a larger, more powerful cyclone, re-working the piping to reduce pressure losses an optimize airflow, and install an automated blast gate system to automatically turn on the dust collection system when tools are being used and to prevent substantial pressure losses from open blast gates. To mitigate excessive noise and fine dust concerns, materials to build a sound-absorbing closet for the DC and two air filtration units are being proposed. Appendix A comprises a CAD drawing of the proposed moves and piping. This will involve several phases.

For the reasons mentioned above, an upgrade to the dust collection system is being proposed. This is mainly comprised of purchasing a larger, more powerful cyclone, re-working the piping to reduce pressure losses an optimize airflow, and install an automated blast gate system to automatically turn on the dust collection system when tools are being used and to prevent substantial pressure losses from open blast gates. To mitigate excessive noise and fine dust concerns, materials to build a sound-absorbing closet for the DC and three air filtration units are being proposed. Appendix A comprises a CAD drawing of the proposed moves and piping. This will involve several phases.

===Moving DC Closet and Some Tools===

===Moving DC Closet and Some Tools===

The current piping layout in the Woodshop results in a long reach of piping between the DC and the table saw, lathe, and sanding areas; thus adding the lathe and sanders to the system would significantly reduce the pressure in the system that is already inadequate. Most light commercial models that PS:1 can fit in the Woodshop cannot provide adequate pressure for the current layout if multiple tools are used. The new piping layout will reduce the pressure drop at the sanders by 4-5 inches, drastically improving dust pickup; Appendix A includes spreadsheets showing the pressure calculations for a hypothetical system where the DC is installed in its current location, and with the proposed layout.

The current piping layout in the Woodshop results in a long reach of piping between the DC and the table saw, lathe, and sanding areas; thus adding the lathe and sanders to the system would significantly reduce the pressure in the system that is already inadequate. Most light commercial models that PS:1 can fit in the Woodshop cannot provide adequate pressure for the current layout if multiple tools are used at the same time. The new piping layout will reduce the pressure drop at the sanders by 4-5 inches of water, drastically improving dust pickup; Appendix A includes spreadsheets showing the pressure calculations for a hypothetical system where the DC is installed in its current location, and with the proposed layout.

The DC will be located where the plywood rack currently is, and the plywood rack, ShopBot desk, and computer shelves will need to be moved to the left. This will require a three-phase 220V 50A hookup to be installed in the new location.

The DC will be located where the plywood rack currently is, and the plywood rack, ShopBot desk, and computer shelves will need to be moved to the left. This will require a three-phase 220V 50A hookup to be installed in the new location.

Grizzly Air Filters: $500 x 3 = $1500<br>

Grizzly Air Filters: $500 x 3 = $1500<br>

Duct Work (from Oneida Air Systems): $2000<br>

Duct Work (from Oneida Air Systems): $2000<br>

Duct Wrapping: $1200<br>

Duct Soundproofing Wrapping: $1200<br>

Ecogate System: $8700<br>

Ecogate System: $8700<br>

Electrical Work: $1000<br>

Electrical Work: $1000<br>