Found a Hurco MB1 that is going cheap but has a problem. I don,t know if any of you have any ideas.
Turn the machine on and it will jog on all axis but the moment you stop it comes up with an positioning error. The owner has sent off all the boards to be checked and they say they are OK.
They have come back been refitted but with the same problem.
This machine belonged to a toolmaker friend of mine and I know its history.
It was sold to factory next door to him, was working fine up until it was moved but had this problem ever since. All the wiring seems to be intact.
Anybody got any ideas, it would be much appreciated.
Sorry just seen you said....i have a mb1 on the face of the table on the right hand side there is a sensor...make sure the adjustment on the hard stop is close to the sensor when it passes by....if it is hitting it will get a motion error or if it is to far away...you must have the upgraded bx board which reads a 4 decimal place...on that board it home the x first and then the Y...here is a web site to the people I have repair my machine...the have great phone support...hope this helps http://www.midwestcnc.com/
Back again, been playing with the MB1, mainly just getting familiar with things.
Also about to check the motors for carbon dust that may have become dislodged in the move(Thanks Hurcojohn).
One on the encoder wheels looks damaged, does any body know if they are available from any where, Hurco UK tell me they are obsolete and want loads of money for complete encoder.The servos have a 1/2" shaft out the back.
The encoder disc is attached over that and the body mounted with 2 screws to motor/tacho body.
They were originally manufactured by Litton Pt No.
30036-001, Hurco Pt No. 416-0248-025
Any idea how many lines the originals have?
The replacement ones that Hurco UK offered are apparently 1000 line encoders, Pt No.002-1810-002
Anybody know of a good alternative encoder in the market place either in the UK or Stateside, new or secondhand. And when replacing an encoder is it just a case undo and do-up the screws or is position on the motor body relative to encoder wheel vital.