implmex
Diamond
- Joined
- Jun 23, 2002
- Location
- Vancouver BC Canada
Hi All:
So I got the J&S 540 grinder but I had to take the mag chuck off and take it apart to fix the activating mechanism.
When I got it back together, the underside is not flat...it's off by a mile.
So my question for you all;
Do I re-scrape the ways flat, scrape the table flat and then scrape in the underside of the chuck, or do I just match scrape the chuck to mate with the table as it is.
The grinder measures very flat...within a tenth or so as best I can measure with granite straight edges and a tenths clock.
The ways still look good to me, the original scraping is visible and consistent for the entire surfaces I can see without taking the table off.
I'm awfully tempted to just match scrape the bottom of the chuck and call it good.
I can't see doing any harm to the grinder and if it's not satisfactory, I can still pull it apart and do the full meal deal on it.
Am I just a lazy pig who should know better, or would you agree I can do this just fine for basic surface grinding on injection molds and the like?
I do have to precision grind at times, but all my parts are so small these days I will probably never have to grind an 18" long piece again in my lifetime.
Precision grinding for me is hitting size, flatness and parallelism within a tenth on a piece 2" x 3".
A buddy of mine recommended just potting the magnet with Moglice and save myself all that scraping, but I don't get a warm and fuzzy feeling doing something like that.
Theoretically it sounds fine but I'd hate to see what it looks like if coolant leaks under it and rots there for a decade.
What say ye all.
Cheers
Marcus
Implant Mechanix • Design & Innovation > HOME
Vancouver Wire EDM -- Wire EDM Machining
So I got the J&S 540 grinder but I had to take the mag chuck off and take it apart to fix the activating mechanism.
When I got it back together, the underside is not flat...it's off by a mile.
So my question for you all;
Do I re-scrape the ways flat, scrape the table flat and then scrape in the underside of the chuck, or do I just match scrape the chuck to mate with the table as it is.
The grinder measures very flat...within a tenth or so as best I can measure with granite straight edges and a tenths clock.
The ways still look good to me, the original scraping is visible and consistent for the entire surfaces I can see without taking the table off.
I'm awfully tempted to just match scrape the bottom of the chuck and call it good.
I can't see doing any harm to the grinder and if it's not satisfactory, I can still pull it apart and do the full meal deal on it.
Am I just a lazy pig who should know better, or would you agree I can do this just fine for basic surface grinding on injection molds and the like?
I do have to precision grind at times, but all my parts are so small these days I will probably never have to grind an 18" long piece again in my lifetime.
Precision grinding for me is hitting size, flatness and parallelism within a tenth on a piece 2" x 3".
A buddy of mine recommended just potting the magnet with Moglice and save myself all that scraping, but I don't get a warm and fuzzy feeling doing something like that.
Theoretically it sounds fine but I'd hate to see what it looks like if coolant leaks under it and rots there for a decade.
What say ye all.
Cheers
Marcus
Implant Mechanix • Design & Innovation > HOME
Vancouver Wire EDM -- Wire EDM Machining