Ryan Brucks
06-11-2012, 12:27 PM
Hey guys,
I am making a version of this over-arm blade guard designed by Gordon Sampson. http://www.woodcentral.com/bparticles/overarm_guard3.shtml
I have the guard itself fully made and assembled. I changed dimensions radically. Mine is 20" long instead of 11", and the sides slope to only 1.5" wide at the bottom (to maintain surface area, since my guard is huge. gives a higher air velocity and thus higher escape velocity for chips and dust). Just working on the aluminum support system now.
The only thing I am confused about it how the T-knobs and bolts are working to keep the thing at the height you set. I don't understand how with this design you can tighten the T-knobs without the bolts just turning with the T-knob? I was thinking maybe they should be carriage bolts in square holes, but there's no mention of that in these directions, so maybe I am missing something? I hope using a wrench every time isn't part of the plan.
can anybody think of how to keep the bolt stationary while tightening the T-knob in that design?
Thanks
Ryan
I am making a version of this over-arm blade guard designed by Gordon Sampson. http://www.woodcentral.com/bparticles/overarm_guard3.shtml
I have the guard itself fully made and assembled. I changed dimensions radically. Mine is 20" long instead of 11", and the sides slope to only 1.5" wide at the bottom (to maintain surface area, since my guard is huge. gives a higher air velocity and thus higher escape velocity for chips and dust). Just working on the aluminum support system now.
The only thing I am confused about it how the T-knobs and bolts are working to keep the thing at the height you set. I don't understand how with this design you can tighten the T-knobs without the bolts just turning with the T-knob? I was thinking maybe they should be carriage bolts in square holes, but there's no mention of that in these directions, so maybe I am missing something? I hope using a wrench every time isn't part of the plan.
can anybody think of how to keep the bolt stationary while tightening the T-knob in that design?
Thanks
Ryan