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 Post subject: De-Tabbing Frame
PostPosted: Wed Jul 22, 2015 7:02 pm 
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Joined: Sat Jun 29, 2013 6:51 pm
Posts: 10
Location: Seattle, WA
When I search "motorcycle frame de-tabbing" on the internet, I get the standard "Makita 4 1/2" Grinding Wheel" approach where spark spraying drama is more important than preserving the mechanical integrity of the base frame material.

I use the following (time consuming and boring) approach ...

- Rough-Removal using a 3 1/2" air driven cutting wheel ... a good size for accurate articulation.
- Semi-Rough removal of excess material using a 2-inch air-driven 80-grit sanding disk ... a good size for accurate articulation.
- Use the above two steps to remove material within a 1/32" of the base frame material ... and stop there, and put down the power tools before proceeding.

I then use a MEDIUM-COURSE hand file to slowly and carefully contour-remove material ... using "Steel Blue" frequently to visualize the high spots ... and when close to the base frame material, switch back-and-forth between a FINE hand file and using 80-grit emery cloth (1-1.5" wide) ... and do a "shoe-shine" with the emery cloth until the welds are perfectly blended with the contour of the base frame material, taking care to shift the "shoe-shine wrap" and pressure based on what the "Steel Blue" is indicating in terms of high spots.

The final result is a frame that looks cosmetically stock ... maintaining the mechanical integrity of the frame ... and avoiding using fillers to mask impatience (that prevent the possibility of power coating).

I also found that doing a few tab removals per day was best to avoid my impatience getting the better of a quality end-result.


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 Post subject: Re: De-Tabbing Frame
PostPosted: Wed Jul 22, 2015 9:32 pm 
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Joined: Wed Aug 31, 2011 9:40 pm
Posts: 858
Location: Portland, Oregon. USA
Good post, can you put a few pictures in also, like to see the final results
:mrgreen:

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 Post subject: Re: De-Tabbing Frame
PostPosted: Thu Jul 23, 2015 9:11 am 
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Joined: Sat Oct 06, 2012 12:50 am
Posts: 275
Location: Chonburi, Thailand
I smashed my tabs off with a 4" 1mm cutter disc on the grinder and then dressed it down with an 80grit flap disc.

Was quick and looks great.


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 Post subject: Re: De-Tabbing Frame
PostPosted: Thu Jul 23, 2015 9:50 am 
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Joined: Thu Oct 03, 2013 2:01 pm
Posts: 3134
Location: South Central Wisconsin, USA
And the 'not so quick and simple'.....
In '69 I detabbed my '49 HD rigid frame with a hacksaw (old used blade) and an old bastard file; untold hours. A guy did what he had to back on the farm.....
Likely would still work. I highly recommend a new blade.

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2009 Suzuki TU250X
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 Post subject: Re: De-Tabbing Frame
PostPosted: Sun Jul 26, 2015 7:28 pm 
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Joined: Sun Jul 26, 2015 7:25 pm
Posts: 1
Location: Chicago, IL
would love to see pictures too


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