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Old 12-02-2013, 04:41 PM   #241
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Default Re: Home made workshop tools

You guys are making me jeolous with these grinder stands and grinders!!
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Old 12-02-2013, 05:05 PM   #242
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Default Re: Home made workshop tools

Well, seeing as how you brought it up...

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Old 12-02-2013, 05:37 PM   #243
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That is fabrication porn!!!
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Old 12-03-2013, 12:47 AM   #244
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Well, seeing as how you brought it up...

I can see why you call yourself "Grinder Bill"!
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Old 12-03-2013, 07:25 AM   #245
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Default Re: Home made workshop tools

Makes me think of the scene in Fastest Indian where Burt trims his toenails with a grinder.
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Old 12-03-2013, 07:46 AM   #246
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I can see why you call yourself "Grinder Bill"!
I didn't choose the name. I did, however, earn it.
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Old 12-07-2013, 05:18 PM   #247
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Default Re: Home made workshop tools

Verry inspiring! I love to see your idears!
Here are a some from my workshop:




Last edited by Gobi; 12-07-2013 at 05:42 PM.
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Old 12-07-2013, 05:56 PM   #248
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Nice spoke wrench Gobi!

Geo.
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Old 12-08-2013, 06:01 AM   #249
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Thanks, i did the wrench in a black smith course i took a few years ago, its forged with hardened steel.
The sliding capilers of this kind you may know, i#m measuring /marking everything with them.
The threader is extreme, its a M50x2, I need it for repair of cylinderheads, there is no space for a normal holder, even not for the normal threader. So I had to grind it down and build the holder from inside

I didn't use the idicators in the first picture anymore, it was a nice idear, but they are to "nervous"

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Old 12-22-2013, 05:39 PM   #250
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I recall that a while back we were talking about using small hand-held type grinders in conjunction with a lathe as sort of a poor-mans tool post grinder. I had a small laminate trimming router that I adapted for that purpose which eventually smoked itself. I needed another one to do some O.D. grinding on a star hub inner sleeve so I scrounged around in the shelves and found a old Roto-Zip which looked like it would do the trick. Took the original handle off of it and bolted a piece of flat bar in it's place so I could clamp it in the tool holder. It will never take the place of a real tool post grinder (like a Dumore), but it works pretty good. The on-off switch is in a handy position too. Don't forget to wear your googles .

Geo.



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Old 12-23-2013, 03:07 AM   #251
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Originally Posted by old.wrench View Post
I recall that a while back we were talking about using small hand-held type grinders in conjunction with a lathe as sort of a poor-mans tool post grinder. I had a small laminate trimming router that I adapted for that purpose which eventually smoked itself. I needed another one to do some O.D. grinding on a star hub inner sleeve so I scrounged around in the shelves and found a old Roto-Zip which looked like it would do the trick. Took the original handle off of it and bolted a piece of flat bar in it's place so I could clamp it in the tool holder. It will never take the place of a real tool post grinder (like a Dumore), but it works pretty good. The on-off switch is in a handy position too. Don't forget to wear your googles .

Geo.



I'll steal that idea
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Old 12-23-2013, 09:12 AM   #252
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Default Re: Home made workshop tools

Geo,
Dad did that on a wood lathe once, never thought about it on a metal lathe, Damn good idea!
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Old 12-23-2013, 12:38 PM   #253
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I'm curious, why would you need a little grinder on a lathe. What you you do with it that you couldn't do with a lathe tool. Just curious!

Cheers Dan.
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Old 12-23-2013, 12:42 PM   #254
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Default Re: Home made workshop tools

easy way of getting a grove or a flatside dead straight on a bit of round bar or something for thoose of us not having a mill
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Old 12-23-2013, 01:28 PM   #255
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Default Re: Home made workshop tools

Quote:
Originally Posted by Dan Boy View Post
I'm curious, why would you need a little grinder on a lathe. What you you do with it that you couldn't do with a lathe tool. Just curious!

Cheers Dan.
In addition to what knuckleworks said, you can work on material that's too hard to cut. You could surface a brake rotor that would be likely to chatter with a cutting tool. With a fine enough grit of grinding stone, you could get a finish not possible with cutting tools and accurate to a size not possible with polishing. Once you figure out how to hold it, and with a coolant flow, you could grind the edge/radius of a glass lens to make it fit a smaller light housing. I'm sure there's more.
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Old 12-23-2013, 01:36 PM   #256
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Default Re: Home made workshop tools

^thanks guys, that's really interesting.

D.
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Old 12-23-2013, 02:05 PM   #257
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Default Re: Home made workshop tools

Quote:
Originally Posted by Dan Boy View Post
I'm curious, why would you need a little grinder on a lathe. What you you do with it that you couldn't do with a lathe tool. Just curious!

Cheers Dan.
Dan,
The application I usually use it for is if I need to make a real light cut and I need a fine finish, for example, on stuff like bearing surfaces. It also works on materials that are a real bitch to cut with traditional lathe tools (as MOther mentioned), such as hardened bearing races The last project I used it on was a star hub inner sleeve bearing surface. The surface was a little galled, and I needed to take off about .0015. (Maybe I should have taken a pic, but the hub is already rebuilt and assembled.) I could have done it with a traditional lathe tool and then polished it, but the poor-man's tool post grinder did it faster and better, and I believe more accurately .

Geo.
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Old 12-23-2013, 07:44 PM   #258
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Default Re: Home made workshop tools

You can also use a tool post grinder or old.wrench's Roto-Zip setup in a lathe to grind some material from the base circle of of an XL cam. You have to very carefully rotate the chuck by hand through the limited arc required and sequentially feed the carriage between strokes but it does the job. I saw this done back in the early '70s when guys were trying to "Hot Rod" their Sportsters on a budget.

Of course it provides extra lift and duration but not a scientifically designed cam profile.

My lathes is always wrapped in plastic bags when I use a grinder on it to keep abrasive off the ways.
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Old 12-24-2013, 06:08 AM   #259
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very carefully rotate the chuck by hand through the limited arc required
Very is the key word there!
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Old 12-24-2013, 10:18 AM   #260
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I use mine to reface valves. Gotta be an accurate setup, though. I use a collet and get good results.
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