That lock down rear bar looks great, rental grinders dont have that. That blade is spinning faster then a circular saw blade, looks like barely a 2:1 ratio. Hope your engine runs better.
I think this thing works really great. I would add a spring loaded belt tensioner just to keep those belts from bouncing around. Other than that its a work horse. Some eye protection might be considered
Thanks! It got a few changes after this vid: smaller pulley on the engine, lever operated idler so I can clutch it, and belt guides similar to a riding mower drive belt. I'll have to get an updated vid made in the spring.
the pulley combo is setup to spin the grinder head way too fast, it's putting the engine at a disadvantage, and spinning that cutter head way too fast. if a tip breaks off that wheel its going to fly out like it came from a shotgun blast. change those pulleys and it'll be better.
Genius the ground spike work real good best home made grinder on line great design thank you gave me some great ideas
Love it. Looks dangerous and it works great. Anything that makes people get all scared for your safety is a thumbs up.
I wish you could have showed us more of your stump grinder. What I did see was impressive
That spike was a clever addition.
my dearly departed dad would weld up a bunch of scrap metal and create very useful machines .
Damn good work here.
That lock down rear bar looks great, rental grinders dont have that. That blade is spinning faster then a circular saw blade, looks like barely a 2:1 ratio. Hope your engine runs better.
I think this thing works really great. I would add a spring loaded belt tensioner just to keep those belts from bouncing around. Other than that its a work horse. Some eye protection might be considered
It now has a lever/idler setup to clutch the belt and smaller pulleys on the engine. There's also some hoop guides to keep the belts in their space.
It would have been nice to see how the cutting wheel was made, and what kind of teeth it has.this wouldn't work on oak stumps in Florida
It looks like the belts were hitting the frame should have had a jack shaft, clutch. The blade should be 6" larger.
*You just need a gocart centrifugul slip clutch and a chain and you won't have the slipping issue*
Chain would stretch and wouldnt last long. It also would get quite warm
works sweet man that belt lookin like a widowmaker maybe a japanese engine timing belt tensioner under it ?
Thanks! It got a few changes after this vid: smaller pulley on the engine, lever operated idler so I can clutch it, and belt guides similar to a riding mower drive belt. I'll have to get an updated vid made in the spring.
Really good idea
Nice job. I made one and then my wife bought me a vermeer. LOL
Looks like your grinding gear ratios are not optimal. You need to gear the machine much better so that it delivers more torque to the cutting bit.
the pulley combo is setup to spin the grinder head way too fast, it's putting the engine at a disadvantage, and spinning that cutter head way too fast. if a tip breaks off that wheel its going to fly out like it came from a shotgun blast. change those pulleys and it'll be better.
Has a smaller pulley now.
Changing Pulleys ! Will still Break ! Tips !! Off !! Your Surgesting a Lower ! Spin !
Very good video. Well Done.
Nice. Where did you get the grinder head and blades?
It's a Toro Quadrablade, 4 segments with 3 teeth each. Hub was home made on the lathe.
@@krawlr where Did the ! Engine ! Come ! From !?
you need a safety guard on that flopping belt, if the belt broke, it would put you eyes out. BE CAREFUL DUDE.
Works good
who cares how it operates - doesn't explain how its made!!!!