LF 4" diamond glass holesaw. Calgary

[lyall12]

Why not just go with acrylic?

You can get around the bonding problem by creating a ledge for the acrylic to sit on.

A few small pieces of glass siliconed in place around the space.

Then you can put the acrylic piece in and just use silicone to seal it in.

That's the way my sump was build and hasn't been an issue.

[Tigweldpro]

I could go acrylic but im kinda OCD with stuff and would like glass. Heck if i could afford i would build everything from stainless steel.

[Tigweldpro]

Well after calling around to some more glass shops I found one that will "try" to cut the hole @ 90$hr shop rate and if they break the piece I still pay the shop time and go home with broken glass. wow now that's customer service at its finest

[Tigweldpro]

Well who would have thought that an old dull starrett wood/metal holesaw and a handful of sand/water would grind through glass.... My $10 powerfist drill definitely paid for itself today. The hole is a bit oversized but I put a bead of silicone around the inside and the sock fits nice n tight.


Success has been achieved for $0

POST CLOSED!

[Delphinus]

Wow, my hat is off to you. Can you please explain how you did that?

Interestingly (to me anyhow, lol) is that I'm sort of in the same boat. I want to build a sump insert to hold a filter sock or two but the larger size. I've been stuck at the "do I go glass or do I go acrylic for this" decision point for a couple weeks. I'd prefer glass, just .. "because".

Just go slow and let the sand go under the drill bit as often as possible?

[Tigweldpro]

yes build a playdoh or plumbers putty dam around the hole to hold sand/water. you need a 1/4" glass bit to make a pilot but you can get a set of small sizes for a few bux on fleabay. I used a cheap 1/2" electric drill but I think a drill press would work best. you don't want much pressure just enough to feel the sand rolling between the saw and glass. drill 1/3 of the way through from one side then flip it over so you don't get breakout on the bottom side. I used pool filter sand mostly quarts but if you could get a fist full of sandblasting grit it would probably work better. took me over an hour to grind my way through but whateves its a hobby.

I think unless you already have an old holesaw/sand/drill. buying the $50 one on amazon would be the best bet as you can resell/rent it out after. The hole size you want is 3 7/8" anyway my 4" was a bit big.

You can also go to crystal glass and have there "experts" break your glass and send you home with a $90 bill.

[Tigweldpro]