jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Oct 29, 2018 12:56:33 GMT -5
So I run SiC 500 before transferring to the vibe with AO 220. My vibe takes AO 220 to a fine pre-polish finish.
However, if I do not run the SiC 500 for at least 5 days in the rotary the vibe with AO 220 never reaches pre-polish. To prove the point. I accidentally transferred from rotary/SiC 500 to vibe/AO 220 in only 3 days. I ran my glass 3 days in AO 220 with NO pre-polish. Cleaned out and did another 3 days in the vibe with AO 220. Still no pre-polish.
So, the 5 to 6 days in rotary/SiC 500 is prerequisite. The SiC 500 is fragile and breaks down easily in the rotary.
The 220-500-1000 range abrasives are impossible to judge finish with human eyes. But situations like this reveal the times required for the next step.
And of course, these are the conditions for my rotary and my vibe.
Main point, cheaper to prep rocks in a rotary than a vibe. Vibes are a more delicate machine. Not as passive as a rotary. IMO
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Post by gmitch067 on Oct 29, 2018 15:17:38 GMT -5
Sooo.... If I understand right... You run the glass(?) in rotary with 80 grit followed by 220 grit, followed by (5 days??) of by SiC-500... then transfer to the vibe with AO-220 to get the pre-polish finish?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Nov 4, 2018 15:42:22 GMT -5
Sooo.... If I understand right... You run the glass(?) in rotary with 80 grit followed by 220 grit, followed by (5 days??) of by SiC-500... then transfer to the vibe with AO-220 to get the pre-polish finish? Hi Mitch. SiC 60 in rotary, then SiC 500 in the rotary. Then AO 220 in the vibe, then AO polish in the vibe. But the SiC 500 has to be run long enough in the rotary to break down to guessing SiC 1000. About 4-5 days. Even glass will break the SiC 500 down in 4 to 5 days. The vibe makes short work of the AO 220, breaking it down quickly. But the step back from SiC 500 in the rotary back to a larger AO 220 in the vibe is working best go figure. I no longer use the Lot-O for the another polish step. The Vibrasonic now does a fine polish since incorporating this 4-5 day SiC 500 step and it does not make sense. And the vibe steps have been shortened since using the SiC 500. AO does not remove much material be it AO 80 or AO 220 compared to SiC 500. I would say SiC 500 removes 5 to 10 times more material than AO 80 and/or AO 220. They are very different abrasives. The soft glass has revealed this.
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