measure the shaft across the diameter only not where the key way is
so 90 degrees to your picture
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measure the shaft across the diameter only not where the key way is
so 90 degrees to your picture
There are many different sizes. If you're going to make knives, I suggest you buy a pair of calipers.
they're cheap, and you will be able to tell exactly how thick or wide a piece of metal is.
Sometimes the difference in axle sizes is minute, and with a simple ruler, you're not going to be able to tell.
I have a caliper. it measures the shaft .875 . 7/8ths of an inch. so ,according to the KMG plans I go buy I need to buy a shaft that is 7/8ths inches wide. but on there parts list , it looks like he purchased a 2 foot long shaft. I don't think there is a need for such a long shaft. so the way I figure is once side of shaft has drive wheel, then through the pillow block bearings. then a pully on the other end. the pully has a small belt going to the pully on the motor. I suppose I could just line up the motor behind and run the drive wheel right on the motor ? but that would elongate the entire unit. Attachment 199133
you will see in the attached pic what I am talking about . I could 1...either use the pully system to drive the wheel. ? Or is there a way to just extend the shaft of the motor? buy another shaft and couple them together ? suggestions ? this is all new to me . thanks, David
The drive wheels for my grinders are mounted directly on the motor.
The motors are powered by a VFD so pulleys are not necessary.
Attachment 199137
so , do you mean like the attached. just mount the motor behind he structure ? I guess since the kmg plans I am looking at don't have it that way but seems easy enough ?
Also, I am getting ready to purchase the tooling arm . how long does it need to be ? if I have 2 , is 18 inches each enough. I am going for a round contact wheel and a flat platen , so it would be nice to have a tooling arm for both .
If you have a VFD, mount the motor just like your picture in post #45. If you don't have a VFD, mount the motor like post #43. You need to be able to control you speed.
Yes I have a vfd. Thanks
This depends on the size and placement of the drive and tracking wheels, in relation to the receiver tube, and the size of your smallest contact wheel. I use a 2" drive wheel and often a 2" contact wheel. The 1-1/4" tool arm was sold by the foot. It appeared that I could get by with 20" so I ordered 2 feet. I saw no reason to cut 4" off so I left it at 24" now I'm glad it's a little long because there is better support as well as the possibility of shortening it if I ever needed to change any of the holes in the working end.
yup . that's it . I will just mount the drive wheel to the motor and place the motor where it needs to be to line up with the other wheels when the time comes.