Post by jamesp on Feb 9, 2016 16:51:35 GMT -5
There is a 400 pad and an 800 pad on this 3600 RPM Walmart grinder. About right for the bezel maker.
The backing plates were home made and procedure sorta forgotten.
I see a 5/8 inch ID sheave in there for a spacer, and a nut was welded onto a 4 inch washer.
Not sure how that nut is hidden in there, but that washer has a nut welded to it.
I am certain that it was the low profile nuts that came with the grinder, 5/8-14, left one side right the other I think.
The nut may be hidden in the cup on the outside of the sheave. No telling what was molested to make it work.
The pads have 7-8 years of service. Lots of use. Sitting in a humid greenhouse about the whole time
They are made for wet service but do fine dry on soft metals.
The velcro was removed and the pads epoxied and compressed to the face plate to avoid them getting lop-sided as when attached by velco.
I think a hand grinder was put against the washer while the bench grinder was running to true the washer's edge for smooth balanced rotation.
But the performance is remarkable for cleaning saw cuts and nipper cuts. --No burrs whatsoever--copper, brass, german silver and stainless
The 400 grit is quick to remove material and the 800 pad is quick at removing the 400 scratches.
Removal quick, but not too aggressive.
Friendly and easy to do some precision sanding. A shame those grooves are in the pads. They have to be gotten used to.
It never plugs up and the pads should last many years. Does not remove skin either.
A different experience in abrasives in that it is very smooth as it abrades. Feels like holding metal to teflon.
DEFINITELY a machine to wear breathing protection.
This german sliver with a 220 tumble finish. Photo not great, and metal has a few deep scratches.
face polished the 1 inch X 1 inch surface. 400 to flatten face, 800 to remove scratches.
Should buff easily with tripoli. Keep the pan of water close by, heat is generated.
Another view of end assembly, lighting from different angle
The backing plates were home made and procedure sorta forgotten.
I see a 5/8 inch ID sheave in there for a spacer, and a nut was welded onto a 4 inch washer.
Not sure how that nut is hidden in there, but that washer has a nut welded to it.
I am certain that it was the low profile nuts that came with the grinder, 5/8-14, left one side right the other I think.
The nut may be hidden in the cup on the outside of the sheave. No telling what was molested to make it work.
The pads have 7-8 years of service. Lots of use. Sitting in a humid greenhouse about the whole time
They are made for wet service but do fine dry on soft metals.
The velcro was removed and the pads epoxied and compressed to the face plate to avoid them getting lop-sided as when attached by velco.
I think a hand grinder was put against the washer while the bench grinder was running to true the washer's edge for smooth balanced rotation.
But the performance is remarkable for cleaning saw cuts and nipper cuts. --No burrs whatsoever--copper, brass, german silver and stainless
The 400 grit is quick to remove material and the 800 pad is quick at removing the 400 scratches.
Removal quick, but not too aggressive.
Friendly and easy to do some precision sanding. A shame those grooves are in the pads. They have to be gotten used to.
It never plugs up and the pads should last many years. Does not remove skin either.
A different experience in abrasives in that it is very smooth as it abrades. Feels like holding metal to teflon.
DEFINITELY a machine to wear breathing protection.
This german sliver with a 220 tumble finish. Photo not great, and metal has a few deep scratches.
face polished the 1 inch X 1 inch surface. 400 to flatten face, 800 to remove scratches.
Should buff easily with tripoli. Keep the pan of water close by, heat is generated.
Another view of end assembly, lighting from different angle