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theresa
20-01-2019, 04:20 PM
Hi - has anyone any experience of using a diamond core drill? I have a fancy to drill out some plugs from old plates and mount them in bezels. My question is this - what size core are you left with after drilling, eg using a 25mm core drill. :ta:
Dennis
20-01-2019, 10:06 PM
The answer depends on the thickness of the drill Theresa. Supposing it has 3mm walls, the core will be around 19mm in diameter.
However depending on the quality of the plates (I imagine you mean plates for food), you might only get broken cores.
Certainly you will need water for lubrication, a choice of speed, probably a pillar drill, and lots of messy experiments.
You might also need to tidy the edges with a diamond file, or plate. Dennis.
theresa
21-01-2019, 10:29 AM
I've taken a flyer and ordered a selection. They don't cost much so I can experiment. The seller said you drill dry. They are designed for ceramics so we will see.....
I seem to be lacking in inspiration since Christmas and have been doing some watercolour paintings of my grandchildren instead. No pressure to sell so very enjoyable and relaxing.
Dennis
21-01-2019, 01:53 PM
Ah, but we'd all like to see the result of this too Theresa.
theresa
21-01-2019, 03:52 PM
11825
11826
Top - my niece
bottom - my grand daughter
JewelleryByMandy
21-01-2019, 11:16 PM
Amazing pics! You're very talented. I got as far as drawing my daughter's eye.


Sent from my iPhone using Tapatalk
theresa
22-01-2019, 08:43 AM
Thank you Mandy - but I need a lot more practice. I want to make it all a lot softer and delicate. The eye is brilliant!
misspond
22-01-2019, 08:59 AM
Lovely artwork (both of you), I can't draw for toffee!

I look forward to seeing the results of your experiments with the core drills Theresa.
J Allison
22-01-2019, 09:00 AM
Hi Theresa I bought a set of these https://www.ebay.co.uk/itm/Diamond-Hole-Saw-Circular-Core-Cutting-Drill-Bit-Glass-Ceramic-25-to-125mm/282087773732?hash=item41adbdd624:m:mEECKRh-KUqukzb7pzEnESQ:rk:19:pf:0 that I use to cut out round cabochons they work fine in a pillar drill , I usually hold them under water when I do it
Dennis
22-01-2019, 01:50 PM
The portraits show a lot of love.
CJ57
22-01-2019, 03:31 PM
These are lovely Theresa. The one of your granddaughter is particularly relaxed and happy
theresa
22-01-2019, 05:12 PM
These are lovely Theresa. The one of your granddaughter is particularly relaxed and happy

Thank you Caroline. She is quite beautiful and very photogenic though only 83/4. I think all the boys will be after her when she's older!
theresa
22-01-2019, 05:14 PM
Hi Theresa I bought a set of these https://www.ebay.co.uk/itm/Diamond-Hole-Saw-Circular-Core-Cutting-Drill-Bit-Glass-Ceramic-25-to-125mm/282087773732?hash=item41adbdd624:m:mEECKRh-KUqukzb7pzEnESQ:rk:19:pf:0 that I use to cut out round cabochons they work fine in a pillar drill , I usually hold them under water when I do it

Yes, I bought a selection of them. Just waiting for them to arrive now.
theresa
22-01-2019, 05:15 PM
The portraits show a lot of love.

Thank you Dennis. It gives me a great deal of pleasure just to look at them.
CJ57
22-01-2019, 08:51 PM
Thank you Caroline. She is quite beautiful and very photogenic though only 83/4. I think all the boys will be after her when she's older!

She looks as if she will break a few hearts
TDA20
23-01-2019, 11:59 AM
Lovely pics Theresa, I agree that have a real warmth to them x
theresa
23-01-2019, 06:24 PM
Lovely pics Theresa, I agree that have a real warmth to them x

thank you x