Post by bradblazer on Feb 8, 2010 1:32:10 GMT -5
After reading a post on TBN about the Weed Wrench I had to try making one this weekend.
www.weedwrench.com/
I printed the patent drawings as a guide.
www.google.com/patents?id=9L40AAAAEBAJ&pg=PA3&dq=4,856,759&source=gbs_selected_pages&cad=3#v=onepage&q=&f=false
I added an additional pivot point where the original design seems to use the slop in the slider to compensate for the arc path of the handle pivot. The handle, fixed jaw support, and base are 1x2x1/8" tube. The slider is 1.5 x 1.5 x 3/16 and the slider sleeve is 2 x 2 x 3/16. I gobbed some hard facing on the jaws and ground it sharp to make grippers. The 5/16 SHCS (180,000psi) pivot bolts seem to be holding up in the single shear pivots. I tried one of mild steel and it bent. Oh yeah, it works really good! I was having so much fun with it I gave myself a sore back!
I did make sure and show Matthew how to work it.
www.weedwrench.com/
I printed the patent drawings as a guide.
www.google.com/patents?id=9L40AAAAEBAJ&pg=PA3&dq=4,856,759&source=gbs_selected_pages&cad=3#v=onepage&q=&f=false
I added an additional pivot point where the original design seems to use the slop in the slider to compensate for the arc path of the handle pivot. The handle, fixed jaw support, and base are 1x2x1/8" tube. The slider is 1.5 x 1.5 x 3/16 and the slider sleeve is 2 x 2 x 3/16. I gobbed some hard facing on the jaws and ground it sharp to make grippers. The 5/16 SHCS (180,000psi) pivot bolts seem to be holding up in the single shear pivots. I tried one of mild steel and it bent. Oh yeah, it works really good! I was having so much fun with it I gave myself a sore back!
I did make sure and show Matthew how to work it. 
