Hi Russ, the RPM-display is mechanically and electrically finished. It was successfully tested for function on my Variospeed drill (OPTIdrill DQ20V). The overall view RPM_M_015kl.JPG The arrangement of the components in the housing RPM_M_003kl.JPG The wiring using a solder terminal strip RPM_M_013kl...

Hi Steve,

a very reasonable solution. Where do you bought it?

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Dietrich

Hi, i received all the parts and checked their function using a breadboard. RPM_M_001kl.JPG I swung the magnet past the sensor by hand to check the display. That worked. RPM_M_002kl.JPG Tomorrow I will mount the setup on the lathe to check the accuracy of the gauge. The 9V battery will be installed ...

Hi,

the speed range of my device goes from 10 to 9999 rpm.

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Dietrich

Hi Russ,

thank you for the links. I have ordered the parts.

Best wishes
Dietrich

Hi Russ,

nice work, looks interesting. Do you have a link to the Amazon offer?

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Dietrich

Back your pardon,

could you post your pics the way you had done first times. I have blocked rar-files.

Best Dietrich

Hi,

... Spotting the bearing housing flange against the crankcase:

how do you fix the housing while doing the job?

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Dietrich

p.s. It is possible to show three picture in one post.

Hello,

looks fine.

How will you lubricate them? What about 2RS ball bearings?

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Dietrich

Hello,

it could be a ARDELT Twin.

A few more photos would be very welcome.

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Dietrich