I just received both my L-0 back plate (flat surface) and my ER 40 collet chuck. The back plate O.D. is 8". The ER-40 collet chuck O.D. is 132 mm (5.196) with a register of 100 mm. I am going to machine a register on the back plate to fit into the collet chuck. So, should I machine the backplate O.D. to 132 mm so it's the same O.D. of the collet chuck? Thks
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L-0 Back Plate
- Thread starter Scruffer
- Start date
- Joined
- Apr 23, 2018
- Messages
- 6,551
If I had enough material, I would definitely turn a collet chuck back plate down- it will give you more positioning room where the work happens. But if there is no working advantage or weight reduction for material handling safety, then perhaps not.
- Joined
- Apr 30, 2015
- Messages
- 11,330
Sure you can turn the backplate down- it's considered part of the "finish machining" fitting process
- Joined
- May 7, 2023
- Messages
- 1,388
If it were a matter of a few mm I probably wouldn’t bother.
In your case I defiantly would, probably before doing anything else and maybe bandsaw cut the excess off to save lathe time and tooling wear.
In your case I defiantly would, probably before doing anything else and maybe bandsaw cut the excess off to save lathe time and tooling wear.