projectnut
Stainless
- Joined
- Mar 4, 2006
- Location
- Wisconsin
I've had a couple edge finders for what seems like eons. I don't know the brand, and there's no markings on them. If I remember correctly they are supposed to be run at speeds above 300 rpm. They've worked fine at that speed until just recently, but in their old age seem to be a bit sticky. Where they would once work well at 300-400 rpm they now need to be turned at around 500 rpm or more to get accurate readings.
I thought it might be just old age creeping up on them, so I purchased a Starrett 827A. It didn't come with any paperwork or instructions, so I started using it at the same speed as my old ones. It seemed equally lazy, so I googled "Starrett edge finder speed". According to a couple old threads on this board people are recommending spinning them at between 1,000 and 1,500 rpm.
I'm also considering a Brown& Sharpe 599-792-2 since they seem to get good reviews. According to the vendors websites these "can be to be run up to 1,000 rpm". There doesn't seem to be an optimal or recommended speed.
Does anyone have experience with either the Starrett 827A or the B&S 599-792-2, and can you tell me what speeds they are supposed to be run at. It seems like speed "recommendations" are all over the board, and neither manufacturer includes anything with the units.
I thought it might be just old age creeping up on them, so I purchased a Starrett 827A. It didn't come with any paperwork or instructions, so I started using it at the same speed as my old ones. It seemed equally lazy, so I googled "Starrett edge finder speed". According to a couple old threads on this board people are recommending spinning them at between 1,000 and 1,500 rpm.
I'm also considering a Brown& Sharpe 599-792-2 since they seem to get good reviews. According to the vendors websites these "can be to be run up to 1,000 rpm". There doesn't seem to be an optimal or recommended speed.
Does anyone have experience with either the Starrett 827A or the B&S 599-792-2, and can you tell me what speeds they are supposed to be run at. It seems like speed "recommendations" are all over the board, and neither manufacturer includes anything with the units.