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Heavy CMM Fixture Loading Methods

cheesiechanman
I have a question for you all again.

So I have quite a few fixtures that weigh between 100-300 lbs and loading them on the CMM always requires pulling help from outsiders. I try to use the same people since they already know the importance of caution and careful placement but I would prefer a one man method. Now an engine hoist would work in most cases and I have used them in the past however gages always swing around and while I could most likely control it the 2nd shift operator is a small, older woman that would struggle with the heavier fixtures. Also, Murphy's Law will eventually take out the CMM or damage a fixture.

What are some methods you all have used for putting heavy things on the CMM by yourself that you felt was safe and controlled?
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  • What gets me is that it is a big flat part with 0.20in profiles callouts on the perimeter - huge tolerances. It is being cut with a water jet. Seems like a job for a portable CMM like an arm or a laser tracker, but we don't have anything like that.

    When I worked at a calibration company we had a layout job come in to measure a school bus frame. Much too large to measure on the CMM. We also had a customer that would lend us their Faro Arm to measure their parts (seats frames for Mercedes. Probably the most interesting job I've done to date) and program it for their team.

    Long story short we just so happened to delay one job and expedite the other one and they fell on the same 2 week period. Both parts were measured and we didn't have to buy an arm.
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  • What gets me is that it is a big flat part with 0.20in profiles callouts on the perimeter - huge tolerances. It is being cut with a water jet. Seems like a job for a portable CMM like an arm or a laser tracker, but we don't have anything like that.

    When I worked at a calibration company we had a layout job come in to measure a school bus frame. Much too large to measure on the CMM. We also had a customer that would lend us their Faro Arm to measure their parts (seats frames for Mercedes. Probably the most interesting job I've done to date) and program it for their team.

    Long story short we just so happened to delay one job and expedite the other one and they fell on the same 2 week period. Both parts were measured and we didn't have to buy an arm.
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