- Joined
- Apr 30, 2015
- Messages
- 11,302
Lots of greasy goodness! Enjoy your new toy; looks to be in great condition
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Bridgeport Rehab - or How To Lose Your Wife In 10 Days
- Thread starter jmiller
- Start date
- Joined
- Nov 25, 2015
- Messages
- 8,298
I wouldn't bother with a new scale, just order the digital dros that fit , or make your own.
- Joined
- Aug 4, 2023
- Messages
- 78
This came with an original Bridgeport branded Tektron DRO for X&Y axis. Seems to work fine although I didnt check it for accuracy. Part of me wants to keep this for the nostalgia, but I may swap it for a newer 3 axis model.
- Joined
- Nov 25, 2015
- Messages
- 8,298
I am talking to replace the quill scale. There's no need for an analog scale, the digital are very good. A mitutoyo, or other quill dro will be better than the scale.
- Joined
- Apr 21, 2015
- Messages
- 582
You guys guilted me into finally attaching the cheapo battery powered quill DRO (glorified caliper) that’s been rattling around in a drawer for years.
I only own an offshore bench top square column mill with a two axis DRO. Until now I’ve been relying on the dials and gauge pins in combo with the quill stop.
Today I just attached it with hacked together scrap to get the dimensions right, but it seems to work. I promised myself I’d make a cleaner mount but it’s at least 50/50 it stays like this for a few decades.
Somewhat alarmingly, the dial and DRO don’t seem to agree. The DRO reads about 1-2% less travel than the dial.
If it was reading more travel, I’d attribute it to being somewhat off vertical, but since it’s reading shorter, and the discrepancy is suspiciously close to the difference between 25mm and 25.4mm, I now think I’ve discovered the source of some puzzling errors in projects past.
There needs to be a word for a 25mm “inch” — none of mine are fit for polite company.
I’ll indicate it in the morning to see if that’s indeed what’s happening. It’s too hot in the shop atm.
There are 100 divisions on the dial. I’ll bet real money they made the pitch of the quill’s fine metric (like 0.5mm) and geared it to get 2.5mm per rev with a dial labeled 0.100”/rev. Any takers?
Anyone need 25mm collets marked 1” or 12.5mm collets marked 1/2”? I’ve got both free for the taking.
I only own an offshore bench top square column mill with a two axis DRO. Until now I’ve been relying on the dials and gauge pins in combo with the quill stop.
Today I just attached it with hacked together scrap to get the dimensions right, but it seems to work. I promised myself I’d make a cleaner mount but it’s at least 50/50 it stays like this for a few decades.
Somewhat alarmingly, the dial and DRO don’t seem to agree. The DRO reads about 1-2% less travel than the dial.
If it was reading more travel, I’d attribute it to being somewhat off vertical, but since it’s reading shorter, and the discrepancy is suspiciously close to the difference between 25mm and 25.4mm, I now think I’ve discovered the source of some puzzling errors in projects past.
There needs to be a word for a 25mm “inch” — none of mine are fit for polite company.
I’ll indicate it in the morning to see if that’s indeed what’s happening. It’s too hot in the shop atm.
There are 100 divisions on the dial. I’ll bet real money they made the pitch of the quill’s fine metric (like 0.5mm) and geared it to get 2.5mm per rev with a dial labeled 0.100”/rev. Any takers?
Anyone need 25mm collets marked 1” or 12.5mm collets marked 1/2”? I’ve got both free for the taking.
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- Joined
- Jan 4, 2021
- Messages
- 1,787
Ok, you can get a new MacBook for around $1,000 (or less), so you got all this for less than a grand???
