| The Shop > Electronics & IC Programing |
| hacking a tacho module? |
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| hopefuldave:
Kanga products here in the UK have 'em too, a whole pound-fifty plus post. In the same package style too! I've fired off an enquiry re fundamental vs overtone and suitability, waiting with bated breath... Got to be worth a try, its about the only leaded part on the board! :D Dave H. (the other one) |
| andyf:
In the distant past, I've bought xtals from QuartSlab http://www.quartslab.com/ . They seem to have been away since I last dealt with them. I mention it only because they will make one for almost any frequency you fancy. Kanga will be a lot cheaper. Andy |
| John Rudd:
How about a second 70 tooth gear driven by the orig, hang a 60 hole disc from the idler? :scratch: Ok, I'll get me coat.... :loco: |
| hopefuldave:
--- Quote from: John Rudd ---How about a second 70 tooth gear driven by the orig, hang a 60 hole disc from the idler? :scratch: Ok, I'll get me coat.... :loco: --- End quote --- Or even a 14 tooth with a 12 hole disc, 21 tooth with 18.... Could even add a Gray-code disc to give spindle position and direction... No, don't get me started, no room for that, either! Dave H. (the other one) |
| andyf:
You mentioned using a reflective sensor. Can't you just use a disc of something shiny, paint 60 black spokes on it, stick it to your 70T gear and aim your transmitter/sensor at it? Andy |
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