So I'm on E-bay, and I see these 1" Bulkheads for under 2 dollars each. It said they require a 1 3/4" hole to mount. So after some simple math, I decided they wern't junk. They had to be close to a 1/4" thick, so they can't be flilmsy...
Three days later, in my mailbox they arrived. Just as ordered, I got 2 very nice, inexpensive bulkheads. $8.18 shipped for 2 of them...
OK so now I'm looking for a 1 3/4" diamond hole saw, I see them on E-bay for a really cheap price from a dude in HongKong. After scanning the transit time, 6-10 days, I figured I'd wait and see what my other options were...
I got out my trusty Dremel, and chucked up a Diamond bit...
Now looking at the tiny chip on the edge of my tank, I knew the side glass wasn't temperd. I made a jig so I could grind without any stray, runaway scratches and it made for a place for the cooling water to pool. The trick to using diamond tipped bits, is to keep them wet. It cools the bit as well as keeps the diamond grit free from glass dust...
15-20 minutes later, I had this plug of 3/8" glass and a perfect 1 3/4" hole in the glass.
The second hole took less time, pobably about 10-15 minutes, because I knew how fast I could remove material without smoking the bit.
Once you see a glow of red sparks between the bit and the glass, it's over. The bit is ruined, smoked, all done, no good anymore.
Gotta love it when a plan comes through...









Three days later, in my mailbox they arrived. Just as ordered, I got 2 very nice, inexpensive bulkheads. $8.18 shipped for 2 of them...
OK so now I'm looking for a 1 3/4" diamond hole saw, I see them on E-bay for a really cheap price from a dude in HongKong. After scanning the transit time, 6-10 days, I figured I'd wait and see what my other options were...
I got out my trusty Dremel, and chucked up a Diamond bit...
Now looking at the tiny chip on the edge of my tank, I knew the side glass wasn't temperd. I made a jig so I could grind without any stray, runaway scratches and it made for a place for the cooling water to pool. The trick to using diamond tipped bits, is to keep them wet. It cools the bit as well as keeps the diamond grit free from glass dust...
15-20 minutes later, I had this plug of 3/8" glass and a perfect 1 3/4" hole in the glass.
The second hole took less time, pobably about 10-15 minutes, because I knew how fast I could remove material without smoking the bit.
Once you see a glow of red sparks between the bit and the glass, it's over. The bit is ruined, smoked, all done, no good anymore.
Gotta love it when a plan comes through...









