Exuptoy
Member
- Messages
- 2,880
- Location
- Maesteg, South Wales
Right, never done anything like this before and not seen anyone else’s build but I found a pulley in work and had a brainwave so purchased a bundle of belts on the bay.
I rung my old man and asked if he had anything I could use to drive it. Someone had given him an old 240v 300w Wickes bench grinder which was missing its RH wheel and nut, so I promptly stole it off him and a plan was formulated. Not sure it will have enough guts but so far there’s no costs involved. I like free!
I have some flat ali plate here which should suffice with some wide strengtheners across the bed and a flat bar as a bed under the belt.
So I made a start on the frame.
The core of the pulley is too large for the shaft so I think I’ll make a 19mm plug by 30mm long with a 12.4mm ID and a counterbore 14.4x1.5 in the end so it bottoms against the shoulder near the body of the grinder and weld it inside my pulley. I can then just use a nut and spring washer and just bolt it on. I was thinking of threading the end and just screwing it on as I have no means of placing a key on the shaft. I managed to measure the thread with a thread gauge at m12x1.75 so either a thread or nut and grub screw inside. I’m not sure.
For the other end I believe I have to have some sort of radius on the end pulley which will have bearings inside the pulley and some sort of jacking bolts to track the shaft.
If anyone has any suggestions please shout out.
I rung my old man and asked if he had anything I could use to drive it. Someone had given him an old 240v 300w Wickes bench grinder which was missing its RH wheel and nut, so I promptly stole it off him and a plan was formulated. Not sure it will have enough guts but so far there’s no costs involved. I like free!
I have some flat ali plate here which should suffice with some wide strengtheners across the bed and a flat bar as a bed under the belt.
So I made a start on the frame.
The core of the pulley is too large for the shaft so I think I’ll make a 19mm plug by 30mm long with a 12.4mm ID and a counterbore 14.4x1.5 in the end so it bottoms against the shoulder near the body of the grinder and weld it inside my pulley. I can then just use a nut and spring washer and just bolt it on. I was thinking of threading the end and just screwing it on as I have no means of placing a key on the shaft. I managed to measure the thread with a thread gauge at m12x1.75 so either a thread or nut and grub screw inside. I’m not sure.
For the other end I believe I have to have some sort of radius on the end pulley which will have bearings inside the pulley and some sort of jacking bolts to track the shaft.
If anyone has any suggestions please shout out.