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HH-A-T5 will not lock in place

baustin
Our Sheffield Discovery with a HH-A-T5 head will not lock in place in the A-90/B-90 position.When it rotates to that position we get a In Position Error code on the controller. It will calibrate the probe in every position but this.
Does this sound like we will need to replace the head or is there some type of cleaning or adjustment that needs to be done?
Parents
  • Just the probes.
    You want to get the head straight like you would on a star stylus (should be multiple posts about it, including from me... unless that was on other) within whatever range of clocking motion you have, particularly if you use LONG styli. This is a judgement call, you know what you do. I stick a 2mm stylus on a 1.5mm shank 70mm (2 3/4") into holes and don't want to shank. If I only had 20mm styli and the smallest was 4mm on a 1.5mm shank, I wouldn't care in the least how close to square the head was. As is, I'm compulsive about it.

    Will the head lock into A90 B90? (you are showing - in front of your 90's so I'm taking that to mean you are at -90 on A and B).

    If the head took a hit in one position and buggered the plates up, depending on what went wrong, you may be able to get around that (while you wait for a new head) by using the opposite position.

    Just make sure you are moved clear before switching from an A-90 to an A+90.
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  • Just the probes.
    You want to get the head straight like you would on a star stylus (should be multiple posts about it, including from me... unless that was on other) within whatever range of clocking motion you have, particularly if you use LONG styli. This is a judgement call, you know what you do. I stick a 2mm stylus on a 1.5mm shank 70mm (2 3/4") into holes and don't want to shank. If I only had 20mm styli and the smallest was 4mm on a 1.5mm shank, I wouldn't care in the least how close to square the head was. As is, I'm compulsive about it.

    Will the head lock into A90 B90? (you are showing - in front of your 90's so I'm taking that to mean you are at -90 on A and B).

    If the head took a hit in one position and buggered the plates up, depending on what went wrong, you may be able to get around that (while you wait for a new head) by using the opposite position.

    Just make sure you are moved clear before switching from an A-90 to an A+90.
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