Joined: Mon Aug 20, 2012 11:32 pm Posts: 1747 Location: Florida, United States
Alnitak wrote:
thomas.adamas wrote:
No eraser in this case. Like I said, run a bar of soap over the lap, then scrub with a new wet sponge and rinse with warm water.
I was referring to cleaning the Skyway--is that what you are referring to? Clean it with soap and a sponge? I did clean the Matrix with the soap and sponge and it worked well. I've used the eraser on the Greenway and Creamway. I assumed it was the same process for the Skyway. Jeff
I do not use, nor do I recommend using an eraser to decontaminate a lap. Think that out. What are you trying to erase?
Joined: Tue Jun 12, 2007 6:41 pm Posts: 5534 Location: Massachusetts, USA
There is history to the Eraser Trick, and it is not as goofy as it sounds. While it may not be the most common way to clean this lap, or the integral oxide types, years ago, it was learned that an eraser will deplete excess diamond from an overcharged lap. It showed up so long ago, it may even have first appeared with the BATT lap. "Rubber" originally got its name because of its early use as an eraser. Having an affinity for carbon, it was able to remove graphite from writing surfaces:
"The first use for rubber was an eraser. It was Magellan, a descendent of the famous Portuguese navigator, who suggested this use. In England, Priestley popularized it to the extent that it became known as India Rubber. "
And it followed that often when running the eraser over a contaminated lap, contaminants also would go away in the eraser crumbs that were produced. So it became on of those internet legends, but it has enjoyed a certain success.
The traditional method of soap scrubbing is still used by most people, and is better especially for quartz-fouled plated laps.
Joined: Sun Dec 16, 2012 9:18 pm Posts: 259 Location: Pennsylvania
Gearloose wrote:
There is history to the Eraser Trick, and it is not as goofy as it sounds. While it may not be the most common way to clean this lap, or the integral oxide types, years ago, it was learned that an eraser will deplete excess diamond from an overcharged lap. It showed up so long ago, it may even have first appeared with the BATT lap. "Rubber" originally got its name because of its early use as an eraser. Having an affinity for carbon, it was able to remove graphite from writing surfaces:
"The first use for rubber was an eraser. It was Magellan, a descendent of the famous Portuguese navigator, who suggested this use. In England, Priestley popularized it to the extent that it became known as India Rubber. "
And it followed that often when running the eraser over a contaminated lap, contaminants also would go away in the eraser crumbs that were produced. So it became on of those internet legends, but it has enjoyed a certain success.
The traditional method of soap scrubbing is still used by most people, and is better especially for quartz-fouled plated laps.
I can verify that the eraser trick works quite well, but one has to be sure to use a soft pure rubber eraser.
Joined: Tue Jun 12, 2007 6:41 pm Posts: 5534 Location: Massachusetts, USA
I have had inquiries about OMF/Fantasy machine mandrels, and have supplied both Zane and some Fantasy dealers with blanks in various materials. I have increased the lengths of the active area to accommodate the Fantasy machine's longer stroke. I used to make and stock OMF mandrels years ago, but Zane standardized the sizes to Metric, and I decided not to retool for it, but supplied blanks the manufacturer could machine and stock.
Because it takes existing businesses a while to catch up, I will supply them in my materials as special orders, and maybe someday will stock popular sizes...WHEN I find out what they are.
Diamond machined to a tolerance of +/- 0.05 mm or better.
I will have a limited number of Gearloose mandrels in several sizes and materials for the Fantasy Machine available at the Franklin Faceters Frolic July 26th and 27th. See www.franklinfacetersfrolic.com for complete information on dealer, speakers, and GemCad classes.
_________________ Tom Maxwell Carolina Custom Gems tmm5111@gmail.com No detail is too small. Think about it. Leave no stone uncut.
1) 3k BA5T 2) Spray a little WD-40 on a paper towel and wipe across the slowly running Matrix. This isn't as much for lubrication as it is to remove anything left over from the last polish session and evenly distribute the diamond remaining. 3) Lightly charge with 60K Diastik (basically the minimum amount I can successfully get to stick out of the tube) across the whole lap while it runs slowly. 4) A few drops of Snake Oil directly on the stone. 4) I run at 800 instead of 500, but yeah, no real downward pressure beyond that needed to keep the stone touching the surface evenly. Add more drops of Snake Oil to the stone as needed, average once per tier.
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