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johnny 09-29-2019 10:06 AM

Disc trimer /cutter
 

In the old days an adjustable grinding disc cutter was used to trim down the worn edge of a grinding disc might someone have one surplus to there current needs I would like to buy one .John.

Tony, NY 09-29-2019 12:01 PM

Re: Disc trimer /cutter
 

Unless you have many to do, I use an old pair (Chinese made) of aviation snips and do it by eye. The uneven edge actually helps for some reason.

51 MERC-CT 09-30-2019 07:58 AM

Re: Disc trimer /cutter
 

1 Attachment(s)
Quote:

Originally Posted by johnny (Post 1804369)
In the old days an adjustable grinding disc cutter was used to trim down the worn edge of a grinding disc might someone have one surplus to there current needs I would like to buy one .John.

This one that is available is a little different than the one I used years ago in the body shop.
As stated aviation snips work well considering the $200+ price tag.


https://www.morganmfg.com/ab_cat05.htm

40 Deluxe 09-30-2019 09:07 AM

Re: Disc trimer /cutter
 

Quote:

Originally Posted by Tony, NY (Post 1804416)
Unless you have many to do, I use an old pair (Chinese made) of aviation snips and do it by eye. The uneven edge actually helps for some reason.

Somewhere awhile back I saw a tip in a magazine that said to cut "V" notches in the edge of the disk. Similar to your method.

51 MERC-CT 09-30-2019 09:18 AM

Re: Disc trimer /cutter
 

Quote:

Originally Posted by 40 Deluxe (Post 1804742)
Somewhere awhile back I saw a tip in a magazine that said to cut "V" notches in the edge of the disk. Similar to your method.

Cutting "V" notches or cutting the disc in the shape of a triangle or square was not meant to provide a 'fresh' area of grinding material but gave flexibility to the disc that allowed it to conform to curved or convex surfaces. (did that back in the 50's)

Pete 09-30-2019 05:21 PM

Re: Disc trimer /cutter
 

If you are careful and practice for awhile, try holding the disc against a COARSE bench grinder wheel.
Cleans the edge up just like new.

34PKUP 09-30-2019 08:15 PM

Re: Disc trimer /cutter
 

Quote:

Originally Posted by Pete (Post 1804928)
If you are careful and practice for awhile, try holding the disc against a COARSE bench grinder wheel.
Cleans the edge up just like new.

Don't know what kind of discs you are talking about but the autobody surfacing discs that are being talked about generally have to have about a half inch or more removed to get to fresh material.

Pete 09-30-2019 08:19 PM

Re: Disc trimer /cutter
 

Quote:

Originally Posted by 34PKUP (Post 1804989)
Don't know what kind of discs you are talking about but the autobody surfacing discs that are being talked about generally have to have about a half inch or more removed to get to fresh material.

Roger on that. It takes a bit of practice to see what angle to hold the grinder but it works slick.

Fortunateson 10-01-2019 12:12 AM

Re: Disc trimer /cutter
 

2x on the bench grinder if it is a hard disc. The more flexible ones will need trimming.


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