john lucas
AAW Forum Expert
I've been concerned about breathing the dust from my grinding wheels for awhile now. It's not too bad when sharpening but when you clean or true up the wheels it's terrible and this is dangerous dust.
I built a dust extraction system this week and connected it to a dedicated shop vac. I have looked at the fire hazard issue and really don't think there is one. I find it hard to believe that a spark would stay alive traveling down the hose and would certainly not be hot enough to start the plastic on fire. I am a little concerned about the foam filter inside and will watch that for scorch marks very closely for the first month or so.
I'm going to find a piece of scrap steel that will produce a lot of sparks and grind the heck out of it just to see. Since this shop vac is dedicated to this task there won't be any flammables inside except the filter.
I built a dust extraction system this week and connected it to a dedicated shop vac. I have looked at the fire hazard issue and really don't think there is one. I find it hard to believe that a spark would stay alive traveling down the hose and would certainly not be hot enough to start the plastic on fire. I am a little concerned about the foam filter inside and will watch that for scorch marks very closely for the first month or so.
I'm going to find a piece of scrap steel that will produce a lot of sparks and grind the heck out of it just to see. Since this shop vac is dedicated to this task there won't be any flammables inside except the filter.