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Lapidary / Gemstone Community Forum
June 17, 2019, 12:50:22 am
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Upgrading our orginal cab machine

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Author Topic: Upgrading our orginal cab machine  (Read 344 times)
Dave
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« on: May 10, 2015, 01:58:02 am »

Way back in February 2009 we built this machine from scratch:


It's now 2015 and the old girl has done a good job but it's time for her to grow up into a 4 wheeler which will make the process much quicker, she will have four expando's with SIC belts fitted and once they are worn out they will be replaced by diamond belts, this is where we are at so far with this upgrade:
New bolts for mounting the pulley blocks



Shaft on the blocks



Dose it all fit and is it level?



Getting the pulley and mounting blocks boxed in



Pulley box complete



We still have a way to go to get this project done, but it's taking shape.

Today I hope to get the spacer tubes made so the support flanges and wheels can be fitted, then we can run it up and make sure it doesn't shake itself to bits!

Cheers

Dave & Shalini
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jakesrocks
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« Reply #1 on: May 10, 2015, 08:26:25 am »

Dave, first let me welcome you aboard.

In the near future I'll be doing a spread on upgrading a vintage Machine. I have an old Beacon Star 6" cabber that will be torn down and fitted with 5 concave carving wheels.

I'll be following your build with interest.
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dickb
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« Reply #2 on: May 10, 2015, 03:32:19 pm »

Just a suggestion.

If you use both arbors you'll have six wheels to work with. I'd put the coarse grits on the two wheel unit and the finer grits on the 4 wheeler. You need to change the coarse belts more often and that would be an easy switch. The finer wheels will last longer and you won't need to change belts that often.

Looks nice and good work.  yes

Dickb
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Dave
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« Reply #3 on: May 11, 2015, 12:15:16 am »

Dave, first let me welcome you aboard.

In the near future I'll be doing a spread on upgrading a vintage Machine. I have an old Beacon Star 6" cabber that will be torn down and fitted with 5 concave carving wheels.

I'll be following your build with interest.

Now that sounds sweet Don, I have never seem any decent used cab machines over here in the UK, that's why we build our own and they do the job. Looking forward to your build.

Cheers

Dave
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Dave
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« Reply #4 on: May 11, 2015, 12:28:19 am »

Hi Dickb,

thanks for your suggestion, a very good one. We are very fortunate now because this upgraded machine now gives us the luxury of 8 wheels on two machines.

This one we are talking about here is the wet machine doing the rough work using 100, 240, 400 and 600 Sic belts and the other machine that we built a couple of years ago has all diamond belts on it with 28 (approx 900 grit), 7 (approx 2800 grit), 2.5 (approx 500 grit)and 0.5 micron (approx 100,000 grit) diamond, so we will be whizzing through the cab making now  yippie

Hey, I just found the post I did on here about the other machine, it's been made a sticky http://gemstone.smfforfree4.com/index.php/topic,7507.0.html, I used to be known as Ozbod on this forum, but lost my login because I hadn't logged in for a long time, my fault entirely.

I am sure the other Arbor will be soon put to use, most probably with some polishing mops for my wife's copper work.

Cheers and thanks again for your input

Dave
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fatsistertoo
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« Reply #5 on: August 18, 2015, 10:08:53 pm »

Nice design and fantastic pictures. I look forward to seeing your progress.
 What are you making your spacers out of?

Virginia
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