Benchtop Downdraft Box Hole Specs
Pegboard with 1/4-inch holes seems to work well. June 21, 2012
I am in the early stages of designing a portable downdraft box to be used on top of a bench. It will probably be about 24" x 48". I am looking for recommendations for optimal hole size/spacing and required CFM for this size unit. Any help would be appreciated.
(Dust Collection and Safety Equipment Forum)
From contributor G:
Sanding dust is pretty light weight. If you used 1" holes and about 50-75 CFM per sq ft you would probably get good results.
From contributor A:
I built a small one that works ok with a 1hp portable collector. I just used 1/4" peg board for the top and built the box about 4" thick with a 4" plastic blast gate for a hose connector. 1hp collector keeps the dust down, but when I hook it up to the 3hp collector, I get a nice bonus as the suction is sufficient to hold the part to the table while I am sanding.
Would you like to add information to this article?
Interested in writing or submitting an article?
Have a question about this article?
Have you reviewed the related Knowledge Base areas below?
KnowledgeBase: Knowledge Base
KnowledgeBase: Dust Collection, Safety, Plant Management
KnowledgeBase: Dust Collection, Safety, Plant Management: General
All rights reserved. No part of this publication may be reproduced in
any manner without permission of the Editor.
Review WOODWEB's Copyright Policy.
The editors, writers, and staff at WOODWEB try to promote safe practices.
What is safe for one woodworker under certain conditions may not be safe
for others in different circumstances. Readers should undertake the use
of materials and methods discussed at WOODWEB after considerate evaluation,
and at their own risk.
335 Bedell Road
Montrose, PA 18801
Copyright © 1996-2019 - WOODWEB ® Inc.