OP
Jim Timber
Veteran Member
Looks like I might get back to working on the grinder this week.
That Greenwheel looks really hard on the driving engine to me. Going from unloaded to momentarily loaded every 180 degrees has to put vibration into the machine something fierce. I can't imagine most grinders are set up to handle that kind of impulse and I'd venture stress cracks might become a common theme on those who've adopted the system. Maybe I'm just paranoid?
My tooth spacing will be 3 sets of 4 teeth (24 total) spaced so that there's a swath cut every 120 degrees through all the tooth planes. I haven't laid out the pattern on the wheel yet, but it should keep more than 2 teeth in the wood at all times on most stumps.
I have to keep myself in check to some degree too. I come from metalworking now (been 20 years since I did much other than framing with wood), and metal is far less forgiving and needs a lot more rigidity in the setup or bad things happen. Chunking out a stump isn't precision work and it doesn't really matter if you tear out the workpiece or make a smooth cut - as long as it's gone.
That Greenwheel looks really hard on the driving engine to me. Going from unloaded to momentarily loaded every 180 degrees has to put vibration into the machine something fierce. I can't imagine most grinders are set up to handle that kind of impulse and I'd venture stress cracks might become a common theme on those who've adopted the system. Maybe I'm just paranoid?
My tooth spacing will be 3 sets of 4 teeth (24 total) spaced so that there's a swath cut every 120 degrees through all the tooth planes. I haven't laid out the pattern on the wheel yet, but it should keep more than 2 teeth in the wood at all times on most stumps.
I have to keep myself in check to some degree too. I come from metalworking now (been 20 years since I did much other than framing with wood), and metal is far less forgiving and needs a lot more rigidity in the setup or bad things happen. Chunking out a stump isn't precision work and it doesn't really matter if you tear out the workpiece or make a smooth cut - as long as it's gone.