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Messages - slabbercabber

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Fascinating Facets / Re: Imahashi FAC8 faceting machine
« on: April 08, 2016, 07:50:27 AM »
The Imahashi is the Rolls Royce of faceting machines.  No wood is used.  It is very heavily built and once set the handpiece will work on multiple bases.  I sold one a few years ago without any of the abrasive plates for $1400 on Ebay.  That was just a lucky buy at a an estate auction.  No one new what it was and I got it for $50.  The only problem you may have is that it is not marketed in the US.  You will need to order parts from Japan unless you can find a global supplier.

I just use what feels good.  If I had to measure I would guess 1/2 ounce of each per gallon.

Soluble oil isn't real bad but we had a few cases of rash in our machine shop from its use.  This is an excerpt from the MSDS.
Skin contact
Wash off with plenty of water. Remove and isolate contaminated clothing and shoes. Get medical
attention if irritation develops and persists. Wash contaminated clothing before reuse.
Eye contact
Rinse immediately with plenty of water, also under the eyelids. Remove contact lenses, if present
and easy to do. Get medical attention if irritation develops and persists.
Rinse mouth. Drink 1 or 2 glasses of water. Do not induce vomiting without advice from poison
control center. Never give anything by mouth to a victim who is unconscious or is having
convulsions. Get medical attention if symptoms occur. If ingestion of a large amount does occur,
call a poison control center immediately.
  Our machinists were advised to wear latex gloves if they were in regular contact.

I use borax and sodium nitrite.  The borax acts as a surfactant and a very mild corrosion inhibitor.  The sodium nitrite is a lubricant and potent corrosion inhibitor.  I leave water in the tank until it evaporates with no ill effects.  I managed to save a bucket of sodium nitrite from our heat treat process but you can get it at the grocery store as food preservative.  It doesn't get any safer than that.

Beautiful pieces.  What is that first material?

They sell an activator for super glue which helps to set the glue pretty quickly and it works pretty good. I found some at Woodcraft, I believe.

Activator for super glue is water.

This isn't all rock and roll but at least it is in there.

A light touch will help.  Also the motion you use will have a great effect.  Experienced cabbers will use every motion imaginable, but for starting I would suggest rock and roll.  That is keep the motion circular while moving the general area of grinding around.l

Introductions / Re: Intro
« on: March 23, 2016, 05:28:40 AM »
Welcome from East Texas.

Introductions / Re: Hello from Lake Havasu City, AZ
« on: March 20, 2016, 04:36:03 AM »
Welcome from East Texas. yes16

Our Place / Re: Gem ID Please
« on: March 13, 2016, 08:35:59 AM »
It appears that piece is severely undercutting.  If that is really the case, you need to go to hard wheels all the way through.  Basically that means all diamond.  You don't need to buy diamond wheels though.  Diamond paste on wooden wheels or burrs will work.

Shop and Swap / Finally got it together
« on: March 11, 2016, 06:29:15 AM »
I've been spending a lot of time entertaining relatives but I finally put another batch of rough and slabs on Ebay.  Thanks to members suggestions I have included assortments and small batches this time.  I have tried to get pics that five the true nature of each piece, not just the best side.  If anyone would like more photos of any of them, let me know.  It can all be found here.

Mineral Specimens / Re: Creepy Rock -- do I want to know what it is?
« on: March 10, 2016, 02:40:34 PM »
I'd call that prairie agate.  Some years ago we filled the truck with them for the rock garden.  Left them behind when I retired.

I doubt you have a stepper motor in there but if it is, check the control program.  If it is a simple gearmotor you most likely have dry motor shaft bearings.

Mineral Specimens / Strange geodes
« on: February 27, 2016, 08:07:52 AM »
I have a bucket of these from an old collection purchase.  Can anyone tell me anything about them?  The gentleman I bought them from was completely ignorant of information on any of the collection.  It's been an interesting search to identify most of them but this one has me stumped.  Colors are very accurate and they are all shown dry.

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