What's a speed tap? Pictures and catalog reference please.
- Leigh
What's a speed tap? Pictures and catalog reference please.
- Leigh
If you believe you can, or you believe you can't... you're right.
https://www.speedtaps.com/
It's just a brand of taps that is specialized for impact wrenches.
If you believe you can, or you believe you can't... you're right.
Erg.. I should have said high speed gun taps. Always said speed tap for short
Don't get distracted by some company's variation of the basic principle.
The key feature of high speed gun taps are the tapered starting threads and flute design which help self-center in a pre-tapped hole. Historically there were used in milling machines and drill presses. Now they are used in CNC mills for high speed tapping. But every machinist I know uses them to tap by hand as well because of how they work. Hand taps are similar but I prefer these.
Surely I'm not the only person here who has spent time in a machine shop?
https://jet.com/product/detail/5a63b...a:2&code=PLA15
Newly made large format dry plates available! Look:
https://www.pictoriographica.com
Ah, excellent! I yield to your greater experience.
I'm an optical designer who has been around machine shops for 10-15 years in support of that work (think prototype lens barrels and other small parts), and was trained by a Navy machinist with >30 years' experience.
Newly made large format dry plates available! Look:
https://www.pictoriographica.com
Why not use the flange as a retaining ring from behind? Sure beats all of the effort to drill, tap and hope its all aligned. That how my CE was mounted to a Cambo board and it works just fine.
BTW, punker... that was the solution implemented by Steve's Camera Repair in Culver City.
This does work sometimes, but some shutters just don't have enough mounting thread to reach through thick lensboards and engage the flange on the other side, and some flanges have a raised bearing surface that's needed to allow clearance for aperture rotation. Also the rear element on some lenses won't screw all the way back in when the flange is mounted behind the board.
Last edited by Colin Graham; 14-Apr-2017 at 15:10.
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