Surface Grinder for a hobbyist

[deakin]

I could mention the one that I got for free that is just like Jeff's, but that would be even meaner ---

you got me beat. my okamoto automatic grinder cost 2 cases of budweiser (cold)

 

[Driveslayer45]

Got my table back together with the repaired shaft and new bushings. I cleaned the oil ports and made sure the port going to the table handle was lined up.

Then a made a locking nut for the arbor since I have right hand threads on it and it's come loose a few times in my 'testing'.

It's made from 3/8 hit rolled plate with a cold rolled pin for the lock. I was nearly done when the magic smoke came from my milling machine.. guess I'm calling PM today, so ground the flats in it to engage the groove in the arbor.

 

[keeena]

Found this Sanford 6x12 just 15min from my house a couple of weeks ago and scooped it up. I think its an MG but it doesn't specify the model on the column like projectnut's a few posts above.

Like most of your finds: this one was dirty and had quite a bit of crud and plugged oil galleries. I wanted to do a full strip and refinish, but for now I just thoroughly cleaned it, blew out the ports (shot 1" slugs out of a couple), and cleaned/stoned the ways. Everything is really smooth and motor is decent - only problem is the extremely worn cross-feed nut & leadscrew: but that's fixable.

I have yet to find a picture of one which has the full wrap-around guard. Someone hacked in a crooked opening in the guard so they could more easily operate the chuck. I milled it square so its a bit more presentable. Should be a good addition to the shop.

 

[benmychree]

That nut is about as worn as worn gets!

 

[benmychree]

you got me beat. my okamoto automatic grinder cost 2 cases of budweiser (cold)

I think I have you beat; I got my 6 X 18 B&S Micromaster for free, only had to go to near Fremont to pick it up.

 

[keeena]

That nut is about as worn as worn gets!

You're not kidding! Only about half the thread is intact and crest is sharp as a razor (originally is a 0.750" 5TPI square thread). Will probably redo in acme.

 

[benmychree]

Yes, do it in acme, it is a good deal easier to machine both the screw and nut. And it is stronger and has more wearing surface area.

 

[7milesup]

I sharpen a lot of wood working cutters--hss, stellite, and carbide--with this grinder.





View attachment 314912

What type of setup do you use to sharpen your cutters? I bought a Bridgeport SG a while ago and would like to do the same...

 

[Chuck K]

It's a slippery slope. I thought all I needed was a lathe and a mill. And a cut-off bandsaw. And a bench grinder. And a TIG welder......
You get the picture. If I could find a surface grinder for $300, I'd get my wallet out before they change their mind.

And yes, you'll need a mag chuck.

I have one I'll sell you for 400 with a mag chuck.

 

[projectnut]

Found this Sanford 6x12 just 15min from my house a couple of weeks ago and scooped it up. I think its an MG but it doesn't specify the model on the column like projectnut's a few posts above.

View attachment 326373

Like most of your finds: this one was dirty and had quite a bit of crud and plugged oil galleries. I wanted to do a full strip and refinish, but for now I just thoroughly cleaned it, blew out the ports (shot 1" slugs out of a couple), and cleaned/stoned the ways. Everything is really smooth and motor is decent - only problem is the extremely worn cross-feed nut & leadscrew: but that's fixable.



I have yet to find a picture of one which has the full wrap-around guard. Someone hacked in a crooked opening in the guard so they could more easily operate the chuck. I milled it square so its a bit more presentable. Should be a good addition to the shop.

Your right about the guard being modified. Attached is a sales brochure from 1965. Note the low section of the guard is only a few inches lower than the ends. It may have been modified to accommodate a different style chuck. The chuck on my MG has the factory "Sanford" label on the front and the on/off lever on the right end. The chuck has the on/off lever on the front where it may have been difficult to access with the higher guard.