Hi Guys,
Just updating progress on my grinder. I've now got the clamping discs made and also the reducer for the wheel hub.
Grinder-03.jpg Grinder-01.jpg
This is the grinder and the new wheel that I bought from Abtec here in the UK. The 8" diameter wheel is a ceramic 60 grit one with a 50.8 mm (2.0") centre hole, made by "Tyrolit" who are one of the Swarovski group of companies.
Grinder-010.jpg Grinder-001.jpg Grinder-002.jpg Grinder-007.jpg
These pictures show the inch thick slice off the end of a length of 303 stainless steel bar. I cut it in half with a hacksaw and faced each side to give me two 6.5 mm thick discs. These were then drilled 12 mm and then bored out to 0.5" so they are a close fit on the grinder shaft. Each disc has a 2.25" diameter 0.1" deep recess turned in one side. I also made a 4 mm thick washer to go under the securing nut.
Grinder-005.jpg Grinder-006.jpg
Since I needed a reducer for the hub of the grinding wheel, I was going to cut a slice off the end of a 2.25" diameter nylon bar. However I came across this broken plastic castor, so I drilled out the shaft and opened the hole up to 0.5" diameter. Put it on a mandrel and turned it down to 2.0". I made it an easy push fit in the wheel.
Grinder-009.jpg Grinder-008.jpg
At the moment there are no guards for either end of the grinder, they are the next items to be made. But they will have to wait until I can get hold of some suitable sheet steel.
Just updating progress on my grinder. I've now got the clamping discs made and also the reducer for the wheel hub.
Grinder-03.jpg Grinder-01.jpg
This is the grinder and the new wheel that I bought from Abtec here in the UK. The 8" diameter wheel is a ceramic 60 grit one with a 50.8 mm (2.0") centre hole, made by "Tyrolit" who are one of the Swarovski group of companies.
Grinder-010.jpg Grinder-001.jpg Grinder-002.jpg Grinder-007.jpg
These pictures show the inch thick slice off the end of a length of 303 stainless steel bar. I cut it in half with a hacksaw and faced each side to give me two 6.5 mm thick discs. These were then drilled 12 mm and then bored out to 0.5" so they are a close fit on the grinder shaft. Each disc has a 2.25" diameter 0.1" deep recess turned in one side. I also made a 4 mm thick washer to go under the securing nut.
Grinder-005.jpg Grinder-006.jpg
Since I needed a reducer for the hub of the grinding wheel, I was going to cut a slice off the end of a 2.25" diameter nylon bar. However I came across this broken plastic castor, so I drilled out the shaft and opened the hole up to 0.5" diameter. Put it on a mandrel and turned it down to 2.0". I made it an easy push fit in the wheel.
Grinder-009.jpg Grinder-008.jpg
At the moment there are no guards for either end of the grinder, they are the next items to be made. But they will have to wait until I can get hold of some suitable sheet steel.
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