New Rotary Jig. Calibration error.

I was trying to use the Rotary Jig and keep getting "Calibration error" it shows old : 914 New : 1048

Any I else had this problem.

I take it you are getting this on the calibration steps on a dowel?

Yes. When it turns the board around 3 times.

Your number do look like they is a big difference for the old and new. How many times did you try it and did you check your head pressure?

The jig calibration is very finicky. Make sure the jig is tight against the squaring plate and clamped down as tight as possible under the head. Remove and reclamp until the calibration falls within range.

I tried it 3 times. Its late and I have checked head pressure, I will tomorrow. When it turn the board around it stops about 1/2 turn short.

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Originally Posted by bergerud

The jig calibration is very finicky. Make sure the jig is tight against the squaring plate and clamped down as tight as possible under the head. Remove and reclamp until the calibration falls within range.

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What is the range.

I have made some of your rattlesnakes, I've been giving to politicans. Right spin for Dem and Left for Reoub

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Originally Posted by ladjr

I tried it 3 times. Its late and I have checked head pressure, I will tomorrow. When it turn the board around it stops about 1/2 turn short.

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I have had the same problem but, I thought it was either me or my machine was wearing out. I did exactly as Bergerud stated in post #5 and eventually it works.

Thanks. I knew when it went right in no problem some thing would happen

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Originally Posted by ladjr

Thanks. I knew when it went right in no problem some thing would happen

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When it finally does work, subsequent calibrations seem okay until I remove the jig from the machine.

I plan to use one machine solely for that job.

Also, the wing nuts work loose. Once, during a carve, one of them actually fell down on the the rubber belt. I didn't notice it until the carve was finished so I was just lucky that it didn't bind anything up. A lock nut behind the wing nuts solved the problem.

I put lock nuts (regular nuts) on the other side of the tubes. Once the wing nuts were close, I spin the lock nuts up to the tubes and then tighten the wing nuts against them.

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Originally Posted by SteveNelson46

When it finally does work, subsequent calibrations seem okay until I remove the jig from the machine.

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The calibration needs to be run for each carve is the way I understand the instructions.

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Originally Posted by SteveNelson46

Also, the wing nuts work loose. Once, during a carve, one of them actually fell down on the the rubber belt. I didn't notice it until the carve was finished so I was just lucky that it didn't bind anything up. A lock nut behind the wing nuts solved the problem.

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I see that you also replaced the wing nuts with knobs. I like your solution. I'll give it a try.

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Originally Posted by fwharris

The calibration needs to be run for each carve is the way I understand the instructions.

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That's the way I understand it also but, I usually have the same calibration errors between each carving.

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Originally Posted by SteveNelson46

I see you also replaced the wing nuts with knobs also. I like your solution. I'll give it a try.

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Choose large diameter knobs so they are easy to "spin" up and down the threaded rod.

I am having the same issue with my machine that is only 6 months new. Head pressure is normal 80 lbs on a new scale.All alignment marks line up perfectly, I ran the calibration 15 consecutive times with the same result, calibration error _calibration out of range!What next