28-08-2012, 09:07 PM
Maybe just run it at the fastest speed when turing wood Joe, which I guess you'll be doing, but come what may, you're having fun, and that's what matters most!
Re strobes, I did start making an RPM meter with digital readout, using a photo-interrupter and slotted disc with 60 slots, coupled to a frequency counter to convert the display from Hertz to RPM. I built the PCB and PSU, and cut the slotted disc, but it was too inconvenient to mount the disc on the rear of the headstock shaft. Might re-visit it some time! I don't really need one - my lathe pulleys can be viewed through a window so I can see what pulley the belt is on, and hence the speed. It's also possible to use an IR photo-diode shining onto white marks on the shaft as an alternative means of counting the revs, rather than a slotted disc.
Re strobes, I did start making an RPM meter with digital readout, using a photo-interrupter and slotted disc with 60 slots, coupled to a frequency counter to convert the display from Hertz to RPM. I built the PCB and PSU, and cut the slotted disc, but it was too inconvenient to mount the disc on the rear of the headstock shaft. Might re-visit it some time! I don't really need one - my lathe pulleys can be viewed through a window so I can see what pulley the belt is on, and hence the speed. It's also possible to use an IR photo-diode shining onto white marks on the shaft as an alternative means of counting the revs, rather than a slotted disc.
Regards, David.
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
BVWS Member.
G-QRP Club Member 1339.
'I'm in my own little world, but I'm happy, and they know me here'
