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Quad QSP-2 FeederBase calibration drifting

Views: 437

#82837

Quad QSP-2 FeederBase calibration drifting | 19 June, 2019

Hi to everyone I hope someone can help me with a problem I have on a Quad QSP-2. when calibrating ( Or trying to use ) Feeder Bases 2 and 4 on gantry 2 Im getting small amounts of accumulative drift in the X axis. I have changed the servo amplifier, checked the belt for tension,cleaned all the sensors and Datum rail. The carriage arm feels smooth and free I have no issues with Gantry 1. Any help would be appreciated Kind Regards James

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#82838

Quad QSP-2 FeederBase calibration drifting | 19 June, 2019

The only thing left is the read head. Older read heads tend to 'weaken' with age. Sometimes some engineers will shim them up closer to the scale using a 10 mil shim. You could also swap them between gantries...i dont think they are to tough to get to. That being said....I have also cleaned them after pulling them down and cleaning them up has helped. One last thing is to make sure the idler pulley is clamped tight. I have scene the clamp screws broken before and the pulley slipping on the shaft.

good luck, Bob

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#82839

Quad QSP-2 FeederBase calibration drifting | 19 June, 2019

Thanks Bob for the speedy reply I will check these out and let you know Kind Regards James

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