Model Boat Mayhem

Mess Deck: General Section => Chit-Chat => Topic started by: Klunk on May 28, 2015, 06:06:43 pm

Title: How do drill glass
Post by: Klunk on May 28, 2015, 06:06:43 pm
As in the title. I need to drill a round hole in a large glass bottle. How do I do this apart from carefully! Special drill bits etc
Title: Re: How do drill glass
Post by: Howard on May 28, 2015, 06:18:44 pm
You will need whats called a spear head drill and If am right a ring of putty and some  white sprit.
                Regards Howard.
Title: Re: How do drill glass
Post by: Netleyned on May 28, 2015, 06:24:12 pm
And go slow.
Blue tack or putty for the cofferdam.


Ned
Title: Re: How do drill glass
Post by: david48 on May 28, 2015, 06:24:30 pm
What size hole .If I remember dermal used to do a glass engraving wheel .have a look on  Toolstation I have just bought a drill for ceramic /hard porcelain it worked perfect  .It says it will drill glass ,not tried that .David
Title: Re: How do drill glass
Post by: gingyer on May 28, 2015, 06:31:53 pm
Get someone else to do it
They take the blame when it goes wrong  O0 O0
Title: Re: How do drill glass
Post by: Klunk on May 28, 2015, 06:37:34 pm
It's a 14mm hole
Title: Re: How do drill glass
Post by: sparkey on May 28, 2015, 06:46:34 pm
 :-)) You can get drill bits for glass from Screwfix I know I get some to drill mirror,works O.K. just don't use too much pressure,Ray. :-)) :-)) :-))
Title: Re: How do drill glass
Post by: Shipmate60 on May 28, 2015, 07:41:45 pm
Is it a flat bottle, like a gin bottle or a round bottle like a wine bottle?


Bob
Title: Re: How do drill glass
Post by: GAZOU on May 28, 2015, 08:15:12 pm
To remove the cork is a good thing
Title: Re: How do drill glass
Post by: Brian60 on May 28, 2015, 08:28:35 pm
Also fill it with water and cork the end. This will damp out any vibrations.
Title: Re: How do drill glass
Post by: Klunk on May 28, 2015, 08:31:53 pm
Large round bottle. Ie teachers whiskey pub size
Title: Re: How do drill glass
Post by: Shipmate60 on May 28, 2015, 08:52:42 pm
You do know it will drill an elipse in the glass.


Bob
Title: Re: How do drill glass
Post by: Klunk on May 28, 2015, 09:18:57 pm
Yep that's not a problem. It's having another tube attached to it for an experiment.
Title: Re: How do drill glass
Post by: J.beazley on May 28, 2015, 10:11:58 pm
It's not going to be easy that's for sure.
I've drilled many glass fish tanks of various thickness glass upto 28mm thick you just have to take it slowly and use plenty of water as you drill to reduce heat build up which will cause cracks or chips.
Helps having a decent drill with adjustable setting of rpm.


Jay
Title: Re: How do drill glass
Post by: Umi_Ryuzuki on May 28, 2015, 11:10:58 pm
Could you use a stopper with holes in it like a lab?
(http://www.pelletlab.com/v5Files/pellet/148862/640/b_l_stopper_05.jpg)
Title: Re: How do drill glass
Post by: thething84 on May 29, 2015, 01:24:26 am
I drill two holes in a fish tank using a glass  diamond coated drill. Cut bueatifully. Apply no pressure to the drill just let it do the work itself. I made up a little piece of wood to hold the drill in place till its started cutting its groove. As said create a dam around it and keep a flow of water on it.
 
This is what i used.
http://www.ebay.co.uk/itm/DIAMOND-HOLE-SAW-4mm-125mm-Tile-Ceramic-Porcelain-Glass-Marble-Drill-Bit-Cutter-/201159703385?pt=LH_DefaultDomain_3&var=500326903373&hash=item2ed60d7b59 (http://www.ebay.co.uk/itm/DIAMOND-HOLE-SAW-4mm-125mm-Tile-Ceramic-Porcelain-Glass-Marble-Drill-Bit-Cutter-/201159703385?pt=LH_DefaultDomain_3&var=500326903373&hash=item2ed60d7b59)
 
James