Upgrading the Pneumatic (Pughmatic?) Drawbar on my Harrison Mill
Автор: andy pugh
Загружено: 2021-06-10
Просмотров: 1066
The pneumatic drawbar on my mill has been a real boon, but sometimes rather marginal on releasing, often requiring repeated actuations to trigger the compressor hysteresis, and sometimes force-majeur if a tool has been left in a hot spindle.
I have designed and made a tandem release cylinder, for twice the force (or half the working pressure)
The final screens in the video were meant to have links to the models / drawings but it seems that I can't add links in the frame without joining the "partner program". So here they are instead:
Model:
https://a360.co/2SeqSBH
Drawings (un-toleranced, fits are up to you, sorry)
https://a360.co/3we5viG
An old video of making the petals:
• Machining a split collet
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