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Machine Shop and Tool Talk

Dumb Question about Shapers


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  #1  
Old 07-02-2018, 02:39:55 PM
Thaumaturge Thaumaturge is offline
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Default Dumb Question about Shapers

Probably a really dumb question, but did anybody make or even try mounting a grinding head on a shaper arm? Would have to spark out front or to same side as feed, but could maybe even rotate 0-90 degrees between two. Of course would require flexible power connections to grinding head.
Just a thought.
Doc
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Old 07-02-2018, 02:52:08 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: Dumb Question about Shapers

I have not seen it, but that does not mean it has not been done. I would think stroke travel would be too fast, but maybe if you slowed that down too? Did you get a shaper?
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Old 07-02-2018, 03:16:33 PM
Thaumaturge Thaumaturge is offline
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Default Re: Dumb Question about Shapers

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Originally Posted by dalmatiangirl61 View Post
I have not seen it, but that does not mean it has not been done. I would think stroke travel would be too fast, but maybe if you slowed that down too? Did you get a shaper?
No, was just watching Abom79 play with his shaper, struggling to get a good finish on some long paralells. Idea (re-)occured to me. Know you wouldn't get surface grinder spec out of it. Occured to me before about mounting moving grinder head on an X-Y setup. (Like maybe on my chainsaw mill frame.)
Doc
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Old 07-02-2018, 03:55:24 PM
J.B. Castagnos J.B. Castagnos is offline
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Default Re: Dumb Question about Shapers

One of the local machine shops mounted a milling head on a huge planer, I think it was CNC controlled.
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Old 07-02-2018, 04:46:46 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: Dumb Question about Shapers

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Originally Posted by Thaumaturge View Post
was just watching Abom79 play with his shaper, struggling to get a good finish on some long paralells.
Doc
Saw that last night, finish was not all that great, I thought it would get better on the finish path, but no dice. Shaper is on my wishlist, need to see if I have space for it once everything else gets moved in.
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Old 07-02-2018, 09:02:52 PM
Rob Charles Rob Charles is offline
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Default Re: Dumb Question about Shapers

Never saw 1 on a shaper but I did see a grinding head mounted to a planer. The belt shifting table feed was discarded and a hand wheel on the table pinion gear shaft moved the table slowly.It was a 18" by 4' planer. I don't think I would want to grind something that big by moving the table by hand.

A larger tool post grinder may work. Something with a 7" wheel .change the pulleys on the shaper drive to slow it down.

Rob
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Old 07-02-2018, 09:38:32 PM
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OTTO-Sawyer OTTO-Sawyer is offline
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Photo Re: Dumb Question about Shapers

It's Been Done Before. . .

After seeing that, I was half tempted to try it myself, but I haven't yet.

I'm assuming that the Clapper is Locked Down on it.

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Old 07-03-2018, 10:20:41 AM
Pete Spaco Pete Spaco is offline
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Default Re: Dumb Question about Shapers

Many years ago I wanted to a cheap way to get a surface grinder so I bought a 13" Klopp shaper with that in mind. Fortunately I found an old surface grinder at the same time. It met my surface grinding needs so I never implemented a grinding head on the shaper.
With proper gearing on a shaper, you can go as slow as you want.
One thing that would need to be done:
You WILL need some way to catch the debris that comes off of the grinding wheel. Most shapers aren't designed with this in mind.
As far as I am concerned, dry grinding with a surface grinder is an no-no for any number of reasons.
This means that you will have to make a coolant system that catches stuff flying off the contact area at a REAL hi speed.

Pete Stanaitis
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Old 07-03-2018, 06:50:21 PM
tdmidget tdmidget is offline
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Default Re: Dumb Question about Shapers

If it won't produce a good finish with a properly ground tool as a shaper then it won't as grinder either. The precision of a grinding machine is in the ways, not the fact that it has a wheel. Many machine tools used to have their ways and tables cut on planers, which is very like a shaper except that the work piece moves, not the tool. A single point tool is quite capable of good work with the proper grind. If the machine is worn, loose, or out of adjustment it will still be so with a grinding wheel. Also the one in the picture is not just any old grinding arbor but a very expensive tool post grinder.
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Old 07-07-2018, 01:25:47 AM
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Default Re: Dumb Question about Shapers

May not give any better finish than a properly ground tool, but it would allow you to finish Hardened Parts that a tool-bit wont touch.

If you already own a shaper there's no reason why you can't mount a grinder on it.

It may not give as good of results as an actual Surface Grinder would, but at the same time I've seen some pretty Shitty finishes come off of surface grinders too if they aren't used right.

As for the "very Expensive tool post grinder". . . I have Two of them.
A used-but-good DuMore I paid $125.00 for and a Like New South Bend I picked at an auction for $20.00

Main Concern would be, just like with a regular surface grinder, don't over-load the wheel trying to hog off too much material.

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