Homemade surface grinder?

flatgrinder

flatgrinder

Joined
Dec 20, 2005
Messages
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I'm thinking about adapting my Grizzly 2" x 72" into a surface grinder (after I get it fixed).

I'm planning on using it for cleaning up forgings and surface grinding cold/ hot rolled stock. I know it won't be high precision, but I'm thinking that it would be quite useful around the shop.

Anyone recommend a belt speed (SFM -surface feet per minute, I'll size the contact wheel accordingly) and durometer for the contact wheel?

Also, what belt grit sequence is recommended?

Thanks! :thumbup:
 
Look mine:
it's power x axis feed
depth increments of 0,02 inches
novembro025.jpg

any questions I'm here
 
Okay I'm loving the belt sander surface grinders a lot. Any other links for pics of these or plans for these?

I'm curious about how the arm supporting the idler wheel was engineered George? Any chance of some other pics of that? Or did you buy something, a Coote perhaps, and incorporate that somehow? How big is drive wheel? Serrated or plain face?

BTW I just got a Boyar and Schultz 6 X 12 that I'm thinking needs to be modified into something more civilized and interesting. H'mmmmm how'm (is that a word?) I gonna fit a 2" wheel to the spindle of a Boyar Schultz? Ohhhhhhhhhhhh this is gonna be fun.

Thanks

Syn
 
Thanks so much for that pic of your 2 x 72 surface grinder. That looks ROCK solid.

Now I justttttttttttt have to ask.....................any chance of some other pics showing how it was installed on the surface grinder and how you deal with tracking and adjustment issues.

Thanks sooooooooooooooooo much again

Syn
 
Well, as stated on my site, the tracking mechanism is pretty much exactly the same as that on my Bader BIII. The whole thing is simply mounted to a telecoping post, the base of which mounts directly to the spindle housing. It's very simple, and yes, very rigid because the part that matters most (the contact wheel) comes right off the surface-grinder spindle.
Here is a shot of the BIII idler pulley and tracking set up. Very simple arrangement, and it works perfectly.:thumbup:
 

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Thanks for all the replies! You've all been very helpful. When I get a chance, I'm going to incorporate some of these ideas.
 
synthesist said:
Okay I'm loving the belt sander surface grinders a lot. Any other links for pics of these or plans for these?

I'm curious about how the arm supporting the idler wheel was engineered George? Any chance of some other pics of that? Or did you buy something, a Coote perhaps, and incorporate that somehow? How big is drive wheel? Serrated or plain face?

BTW I just got a Boyar and Schultz 6 X 12 that I'm thinking needs to be modified into something more civilized and interesting. H'mmmmm how'm (is that a word?) I gonna fit a 2" wheel to the spindle of a Boyar Schultz? Ohhhhhhhhhhhh this is gonna be fun.

Thanks

Syn
Click to expand...
I'll take more pic's next week. Still getting ready for the HI. Remind me if I forgrt.:confused: ;)
 
ib2v4u said:
nice machines. How much horse power you pouring to that thing.
Click to expand...
I run a 1.5 hp 3600 rpm motor on 220v (it makes a difference). The belt system takes more power than just a grinding stone, plus the use of the thing lends itself to more aggressive cutting than you'd do with a stone. Hence, more power is good!:)

There's no reason to do variable speed with this application. Just run 'er fast and take a couple light cuts with a fine belt when you get close to what you want. :thumbup:
 
Here's another fun thing I've posted in another thread some time ago. It's my 6x36 hydraulic belt surface grinder. The mag chucks are on a tilting sine apparatus so I can square up sword forgings that have distal taper. I could do edges on it too, but I don't. It's a 5 hp motor on the grinder and another 7.5 on the hydraulic power supply that runs the way back and forth.
The tracking arrangement is precisely the same as my other grinders (lifted directly from the Bader BIII design).

http://www.bladeforums.com/forums/attachment.php?attachmentid=63940&d=1166044099

http://www.bladeforums.com/forums/attachment.php?attachmentid=63941&d=1166044152

http://www.bladeforums.com/forums/attachment.php?attachmentid=63942&d=1166044167
 
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