815 Bridgeport Grinder- A Few Basic Q's.

Hi everyone. I finally repaired the one-shot setup and put in the VFD for my BP-815 grinder (pic below). It came w/ the magnetic chuck, and seems to run smooth enough. I have just a basic start up Q.

1) Since I am new to grinders in general. I found this as a good starter article. Passing along!
http://www.americanmachinetools.com/how_to_use_a_surface_grinder.htm
a few vids on YouTube were also good! Here is a 7 part series.
-https://www.youtube.com/watch?v=7FwL55ErfDI&list=PLuNqmH3VduAkmnI6_7naKHoX5DKUzy8ha
-https://www.youtube.com/watch?v=7FwL55ErfDI


2 ) It's 1hp on the motor. The maximum grinder wheel size is 8". I have some Norton wheels and some steel on the table to play around. I guess I have but 1 question thus far.
Q- How do you know if the thing stay's level from 1 side to the other and front to back. Just put on a dial indicator and go from side to side?
Q- If there is something amiss- I cannot see any adjustments on this unit? Do I shim the chuck?

While lower-end I think, it is a perfect size for me, light, and about all I really need to learn on. If you have some quick links or setup advise - Let me know! Thanks.

have you ground anything? like some old parallels

this should give you some indication of how good the grinder is...


Charl

that is a great idea!! Thanks. Off and running. I've been just playing around making sparks and dust so far.

CG,
I am kind of the same boat.

I have a Boyar Sultz 612.

Never run a grinder before.

In your picture, I don't see a mag chuck.
From what I read, you can use an indicator to test flatness of the table top. Or top of the mag chuck.

But if you put 6 equal size parts in 6 locations, on the mag Chuck. Map them out and number them. Then make a pass over them.

Then set them on a surface plate and get out your 10th indicator. See how much variation you have.

There is a book I intend to get:

Advanced Grinding Practice
By Hamilton 1915

Good luck with the grinder!
Make sure it has oil on the ways...

toolman_ar

The walker mag is under that really long piece of 7/8 plate I need to make semi flat. . Was a real rusted piece on a barter deal. My kid and I need a very wide sine plate for his swords.

Thanks for the help and ideas! It has a one shot and I replaced several bad lines and oil cups. Ways are nice and slippery.

The best way to insure the chuck is flat is to re-grind it. About 0.0002 at a time. A spray mist coolant system is helpful, but turn it on after the wheel is started, and off before the wheel is stopped so the wheel doesn't load up with liquid and get out of balance. Gives your arm some good exercise on a manual machine, normally takes a couple of hours

Thanks Jim. I need to pull a trigger in the lm10 scales (or equiv) soon. There are 3 on eBay as pulls and of course my attempts at an import brand to replace at a reasonable cost.

Would an ip67 scale setup be a good choice For a grinder? Have a quote for a 300mm ip67 magnetic scale for under $165 @ 1um if I recall. That's is the head, tape, and enclosure (less dro). Myplan was to give it to my Daughter to impliment with an arduino dro project since she needs to learn about them for her Robotics club. (Another left handed engineer in the family). Yahoo).

Ip67 is the highest common environmental rating for industrial components, dust proof and waterproof to one meter. So yeah, that should work.

I've always been curious how magnetic scales will work with a grinder. The dust is magnetic. Looks like you are going to find out before I do. Plan your mounting well!