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Post by stardiamond on Aug 23, 2019 15:42:40 GMT -5
I've spent a lot of time improving my girdles and am pleased with the progress. Now I'm dealing with problems with sanding. I can deal with scratches but am finding flat spots on some cabs. Sanding not cutting issues. I sand using 8" 600/1200 grit wheels I got from Johnsonbrothers 5 years ago. I don't spend much time on those wheels compared to the cutting wheels and they look like they aren't even broken in; glossy with no cracks or irregularities. With scratches I go back to the 325 and with these finish problems to the 600. It gets old having to keep redoing cabs. I'm tempted to get a sacrificial cab and break in the wheels.
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Post by pauls on Aug 23, 2019 16:10:29 GMT -5
Whatever your first sanding stage is that's where you need to be spending more time, unless it's a large cab put it on a dop, keep the stone moving constantly, dry it bone dry regularly to check.
Hang on, I just read your post again, is 600 your first sanding stage?
If it was me I would be getting a 220 or thereabouts for first sanding stage, why spend your life sanding flat spots and scratches with a 600 and still never get there.
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Post by stardiamond on Aug 23, 2019 17:35:35 GMT -5
I consider anything under 600 as cutting. I do 220/280 soft and 325 soft before I go to 600. Before I go to 600 all I want to see it the 325 marks.
Before, when I got to 600 I considered it auto pilot mode. Just making sure that I hit all of the surface. That's changed recently and maybe age has made the surface less pliable. I think I need to dress the wheels using a cab
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