I did something similar but I used 2x4 inch angle which works perfect for a dust guard and stiffener. I got two 4 foot pieces off of eBay for $15 a piece! Works awesome.
I did something similar but I used 2x4 inch angle which works perfect for a dust guard and stiffener. I got two 4 foot pieces off of eBay for $15 a piece! Works awesome.