The Shop > Tools
At the auctions again
bogstandard:
At one time Darren, most tooling had a temperature standard on it, especially steel rules. They used to have normally 68degs F stamped on them, that was the only temp it was guaranteed to be accurate at. You will also find at high precision machinists, they have a stabilised temperature control (a little like air con, but a lot more acurate). so all precision tooling is guaranteed to be accurate at that temperature. Any major workshop worth it's salt would send their tooling away for calibration at designated intervals, and once the tooling went 'out of date' it could not be used until recalibrated again, even if it had never been used.
On early hard drives, the cylinder read heads used to 'fly' on a cushion of air generated by the surface of the disc plattens as they spun, an atom of cigarrette smoke could cause the heads to crash, because it was too thick to pass thru the gap between the head and platten. That gap could actually be measured and adjusted very accurately, not mechanically, but electronically.
We are only playing at being accurate.
John
Darren:
What's inside your common garden computer processor gets me, mind boggling !!!
sbwhart:
--- Quote from: Darren on March 26, 2009, 04:55:04 PM ---
--- Quote from: sbwhart on March 26, 2009, 04:47:20 PM ---
Is the merser clock gauge missing its stylus if so I've got some I can let you have.
--- End quote ---
Well spotted that man... :clap:
--- End quote ---
If you PM your address, I'll pop some in the post.
Stew
Darren:
Here's a classic example of the Chinese catching up,
"Well over the years I have used many Aloris tool posts. When I took them
apart to clean and lubricate I was never impressed with the machining there. I
did buy a phase 2 one some time ago and I had to deburr all the parts including
the inner parts. My holders on
this one (China) fit very good and they lock up tight. No movement while
checking with dial indecator. If any problems arise in using it, you guys will be
the first to know. Now if I can just find the cut off blades I put somewhere
for safe keeping!!!
George"
In a message dated 3/26/2009 20:11:56 Eastern Daylight Time,
Posted on the Atlas Yahoo groups this morning.
sbwhart:
Hi Darren
Did the stylus and wobbler arrive Ok
Stew
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