• quarrk [he/him]@hexbear.net
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    28 days ago

    I’m over here thinking about temperature changes. It will be precise within 0.0002” at the ambient temperature on whatever Wednesday at whatever time

    Going by a thermal expansion calculator, if the part is steel, then a temp increase by only 20F will cause the length to increase by 0.0048”. Idk what the coefficient of expansion is for plastic, but it also has one and it’s probably going to result in variations larger than 0.0002”