|Project by BobAnderton||posted 10-06-2013 08:22 PM||1081 views||4 times favorited||4 comments|
I often haven’t been detensioning my bandsaw blade after using it. I know that I should to prevent deforming the tires or weakening the spring, but it’s a notable pain to turn that little tensioning knob. It’s a real struggle every time. It’s too close to the upper wheel cover and it’s really difficult to turn, especially when tightening. It’s too tempting to leave it tensioned “in case I need to use it again soon”.
The tensioning screw of this Tiawanese import 18” bandsaw had the knob cast onto the end of it, and was a metric thread, so I didn’t really want to replace or ruin the existing screw and knob so I made this interface piece that receives the knob on one side and accepts a 1/2” drive rachet on the other. I made a disc out of a piece of bradford pear on the lathe using a screw chuck. On one face I first drilled the six outer holes spaced 60 degrees apart on a 1.5” circle, and then used a forstner bit to drill the center hole. I squared the hole that had been the screw chuck mounting hole with a 1/2 inch chisel and it works pretty slick. Tensioning and detensioning is a breeze now.
-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw