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#26

RockRat
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Joined: 26 May 2018
Posts: 320
Member
26 May 2019 01:46 pm

good one xcvator, be great to see it when finished.
your doing great. thumbsup

#27

xcvator
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From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
28 May 2019 09:48 pm

Well I'm afraid this is not going to be finished before we head off for warmer climes on Saturday cry No good trying to paint it in 10c in the shed, so I've ordered a couple of bits from China so they will be here ready when I get home.
Thanks again RR, the HMSC is looking good now thumbsup
Can't wait to get out of Melbourne atm, bloody cold.

2 users like this post: goody2shoes, RockRat

#28

Manpa
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From: Sheidow Park, SA
Joined: 06 January 2018
Posts: 3,234
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29 May 2019 09:51 am

Happy travels Xc. big_smile big_smile


One of these days Ma!

1 user likes this post: RockRat

#29

xcvator
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From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
30 September 2019 03:42 pm

You'll thought I'd forgotten about this didn't you ?
Just been too darn cold to do much but it's starting to warm up a bit now.

Got a speed controller and a couple of drip taps from China so ready to go again thumbsup

#30

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
04 January 2020 08:24 pm

Been doing a bit of a play around with this project and need some ideas, I'm a bit stuck sad

Any ideas for the drain hole at the bottom. I can drill the hole ok but how to fit a drain tube ?

#31

RockRat
Member
Joined: 26 May 2018
Posts: 320
Member
04 January 2020 09:12 pm

Good to see your back into this project. Plastic drain plug with nut, numerous sizes, bunnings or
your local plumbing store. A rubber washer and a little silastic to seal it properly and some
clear plastic hose. good luck thumbsup

1578132240_plug.jpg

#32

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
27 April 2020 05:06 pm

Back on the work bench and I have a couple of questions.

1/ the motor rotates anti clockwise, does this matter ? sad

2/ Do I have to have a master backing plate ? got to be careful with funds atm , super took a hit mad

Elcheapo speed controller works ok thumbsup

#33

Dihusky
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From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
28 April 2020 04:57 pm

Rotational direction shouldn't make any difference, provided the fixing nut is threaded the correct way so it doesn't come undone when you start the motor. Anti-clockwise needs a right hand thread, clockwise needs a left hand thread, looking from the lap end of the shaft. You just work on the side that pushes into the stone.

A master will depend on the laps you're using. The thin topper laps all need a backing plate, often with a magnetic topper glued to it so it grips the lap.

Felt, rubber, acrylic for polishing will all need a backing master, different from the magnetic one, felt and rubber are normally permanently bonded to a backing plate. Acrylic, it's purely for support against stone/hand pressure.

This mob: https://www.gemworld.com.au/products/sh … shing-laps used to have backing plates with a screwed boss in either LH of RH threads, I have some of them which I purchased from them, think they might have been custom made, so could be worth giving them a call, otherwise contact people like Gemcuts for threaded backing plates.

Last edited by Dihusky (28 April 2020 05:15 pm)

#34

Dihusky
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From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
28 April 2020 05:23 pm

Reviewing previous posts, I hope you can drop the motor speed, 2000rpm, you'll never keep the cutting laps wet, I'm just gearing down our 8" drum machine to around 500rpm. sad

You also need to be able to vary polishing speeds otherwise things might get a bit hot and dopping wax could melt.

#35

xcvator
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From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
29 April 2020 02:34 pm

Thanks for that, I can control the speed ok , I didn't think the rotation direction would make any difference, and I think I can use the acrylic disks RR made for me as backing plates.

#36

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
04 May 2020 09:55 pm

Found another slight problem with my design, because of the slanted back section I can't fit in the speed controller and enclose it to make it safe, so tomorrow I will have to address that by extending the sides and covering the top. I may even make a totally new body for it when I'm finished.

The other thing I have to work on is the watering system, thought of getting some empty saline drip bags from a vet as they come with their own hose and tap.

Thoughts, appreciated

#37

Dihusky
Member
From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
05 May 2020 07:57 pm

Get a 20l water container, commercial soap or chemicals come in these and they often throw them away. Talk to a commercial cleaner and see if they have any empties. They come with a tap, so run the water feed into the centre of the lap.

Last edited by Dihusky (05 May 2020 07:58 pm)

1 user likes this post: pinfire opals

#38

xcvator
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From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
05 May 2020 08:13 pm

Dihusky wrote:

Get a 20l water container, commercial soap or chemicals come in these and they often throw them away. Talk to a commercial cleaner and see if they have any empties. They come with a tap, so run the water feed into the centre of the lap.

20 litres is going to be way to big for me , I have to be able to take it away in our small caravan. At home it would be fine as I have a couple already

#39

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
11 May 2020 04:27 pm

Well I gave the Slant Cabber a trial run today yikes I'm going to have to be very light handed as the motor slows down a bit when you apply too much pressure but it should be ok for me to have a play with and learn about cabbing.

3 users like this post: RM Outback, Dihusky, pinfire opals

#40

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
11 May 2020 05:25 pm

Previous costing at 09/05/2019 was $83-63

Updates
speed controller $17-00
Smaller cake tin $22-45
Figure 8 power lead $8-95
Drip Taps $9-45 (10, any body want a couple ) 1589177773_taps.jpg

total so far $142-48

This is not taking into account flat laps/disks, etc, just the actual slant cabber. Disks, laps and sandpaper etc will probably be more than double the total cost

1 user likes this post: pinfire opals

#41

Dihusky
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From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
11 May 2020 06:09 pm

Still damn cheap even though it might be a bit under powered. clap thumbsup

#42

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
13 May 2020 06:42 pm

I think I've figured out the water supply, keeping in mind it has to be portable and cheap. 1 bucket upside down with another 1 right way up on top of it full of water with 1 of these 1589355672_flexible_hose.jpg ($8-00) inserted near the bottom

1 user likes this post: RM Outback

#43

Dihusky
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From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
13 May 2020 07:16 pm

Those work really well, I use them on my vertical flat lap. The one I have has the flat nozzle.

#44

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
18 May 2020 10:17 pm

15mm copper drain soldered in,1st wet trial run today, everything seemed to be ok, 99% of the water was caught by the tray, but a fine mist flew around a bit, enough to get things pretty wet around you after an hour or so hmm I think a visit to "clarke rubber" is called for, might find something to make up some sort of "skirt" to catch the spray .

#45

Dihusky
Member
From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
18 May 2020 10:31 pm

Even the expensive horizontal cabbers chuck water, welcome to the club smile Wait till a stone hits it, you'll get even more wink

2 users like this post: LoneWolf, xcvator

#46

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
19 May 2020 02:25 pm

Would something like this arranged as a skirt around the top help stop some of the "mist" ?

https://www.clarkrubber.com.au/collecti … 0mm-x-30mm

If I can't reduce this mist I won't be able to use the cabber in the house sad every thing will just get too wet

#47

Redfin
Member
Joined: 26 February 2013
Posts: 2,598
Member
19 May 2020 03:42 pm

xcvator wrote:

If I can't reduce this mist I won't be able to use the cabber in the house t

YES, well done, off to the shed with some music and a bottle of red.


Det used - Whites 6000D, ML SD2000, ML SD 2001, ML SD 2200D, Garrett Infinium. Minelab SDC 2300. Minelab GPZ 7000.
Current Det - Garrett ASD Groundhog. . Minelab GPX 5000. Minelab GPX 4500.

2 users like this post: xcvator, LoneWolf

#48

Dihusky
Member
From: Gold Coast, QLD
Joined: 16 June 2017
Posts: 1,102
Member
19 May 2020 04:04 pm

Or you could try this: https://www.clarkrubber.com.au/collecti … 3mm-x-10mm

Pinch part will sit over the rip then you have the protective bulb on top plus the internal fin the reduce water flying up from the bowl. In reality mate I don't think you'll ever stop the splash. When ever I cab I wear a butchers apron and always get wet. sad

1 user likes this post: LoneWolf

#49

Martyz
Member
Joined: 02 January 2019
Posts: 140
Member
19 May 2020 06:25 pm

Agreed. I have added cabbing to my list of favourite water sports. smile
Have a go at boulder opal... that’ll throw mud in your eye.
You can find a bit of a balance where you deliver just the amount water you need to reduce splatter while keeping your wheel clean and wet.
Also my wife has just found out why I keep all my old tee shirts... rags.

2 users like this post: Dihusky, LoneWolf

#50

xcvator
Member
From: Mornington Peninsula
Joined: 12 September 2016
Posts: 1,683
Member
19 May 2020 08:19 pm

Dihusky wrote:

Even the expensive horizontal cabbers chuck water, welcome to the club smile Wait till a stone hits it, you'll get even more wink

Maybe I should set up 1 of those clear laboratory cupboard things with arm holes big_smile


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