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Old 08-11-2011, 10:51 AM   #16
arterz
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well, another problem with acewell, the tacho doesn't work, I changed the settings of wheel circumference to 1037mm (for 13 inch wheel) but when it starts to read the first 5km/h then it stops reading!! what's the problem? do I have wrong settings or the tacho sender in wrong mounted??
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Old 11-11-2011, 12:19 AM   #17
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i have no experience with the acewell, but if that sensor for speed is hall effect rather than a reed switch, it will pick up the rear of the wheel studs as well as your "pickup" as speed increases and may be getting upset as a result.
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Old 17-11-2011, 08:22 AM   #18
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the problem still exist, I changed the position of the sensor,, I made better bracket and made a hole at the rear disc to bolt on the magnetic bolt, but I can't understand where is the problem? should I change the wire with some better shielded??





here is a video
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Old 18-11-2011, 04:57 AM   #19
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Maybe try reducing the air gap to .5mm/1mm you may have to turn the trigger 90 degrees (inline with the axle) to facilitate this.
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Old 18-11-2011, 07:14 AM   #20
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ok I will try this option!
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Old 18-11-2011, 10:55 AM   #21
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Quote:
Maybe try reducing the air gap to .5mm/1mm you may have to turn the trigger 90 degrees (inline with the axle) to facilitate this.
Thinking about my setup I have the magnet running vertically through the sensor in line with a marking on it. Where as yours is going horizontally. So when I looked at your original picture and said that should work I was talking Pants
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Old 18-11-2011, 11:10 AM   #22
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So, should I change the possition of the sensor like this:

option 1


OR

option 2
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Old 18-11-2011, 04:31 PM   #23
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I would go with option 2
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Old 18-11-2011, 05:48 PM   #24
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me too I think,it is similar setup like yours, so next move is to fabricate new sensor mount
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Old 18-11-2011, 06:25 PM   #25
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Had the same issue with regards to sensor orientation... Option Two will work.
The magnet must pass along one of the lines at either end of the sensor NOT along the body of the sensor!!


This is how my acewell sensor is fitted:












Hope this helps.
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Old 19-11-2011, 01:33 AM   #26
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thanx mr Callum, really helpfull pics
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Old 19-11-2011, 05:15 PM   #27
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Artez, In option 2, I think the trigger could be mounted so the nut passes the end of the trigger ie move it further inboard & raise it so the 'finger' of the trigger points directly at the nut.

Those studs in the picture could create interference
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