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Need a bed surface ground.
- Thread starter Smi_tty
- Start date
Ok, that makes sense to me. I still need to do mine some day. What do you think of the mill in general now? I'm having a bit of a struggle switching between drilling and milling and not sure a lower profile vise will solve that issue.
What material did you shim with?
Rusty Metalhead
Member
When I was an tool and die apprentice one of the things that was taught to the machine repair trade was a thing called scraping.
It was the most accurate method of achieving flatness, parallalism, and squareness and on a a machine bed.
No mechanical pressure or heat from a grinding wheel, just a dial indicator and hand work to get the accuracy you need.
You may actually see scraping marks on a lot of mill and lathe beds, and not realize they were all done by hand.
Scraping involves a scraper,a granite table and a dial indicator and a lot of time to check your work.
There is a video on youtube called "What is metal scraping?" by NYC CNC. it will explain scraping and why it is used.
I believe there are other videos showing the technique of scraping on youtube as well.
-George
It was the most accurate method of achieving flatness, parallalism, and squareness and on a a machine bed.
No mechanical pressure or heat from a grinding wheel, just a dial indicator and hand work to get the accuracy you need.
You may actually see scraping marks on a lot of mill and lathe beds, and not realize they were all done by hand.
Scraping involves a scraper,a granite table and a dial indicator and a lot of time to check your work.
There is a video on youtube called "What is metal scraping?" by NYC CNC. it will explain scraping and why it is used.
I believe there are other videos showing the technique of scraping on youtube as well.
-George
Here’s a guy at lookscreation that gives a lot if info as he scrapes a Holbrook lathe it’s worth looking at.
https://www.youtube.com/user/lookcreations
https://www.youtube.com/user/lookcreations