oldtech
Full Member
Posts: 222
Machine: Power Route
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Post by oldtech on Nov 8, 2019 5:16:11 GMT
My Z plate appears to be off vertical by 0.01 to 0.02 mm per 50.8 mm (-0.01 to -0.02 degrees down and towards the back). This creates visible patterns that can be felt in larger surfaces.
What is the best way to adjust the Z plate to fix this? I know I could add a few layers of aluminum foil to the gantry or Z plate linear bearings, or in the Z plate itself. It might also be possible to do this re-positioning the X rail Extrusions (that sounds the easiest if they can be adjusted).
BTW: When I leveled the spoilboard the table was more flat than I expected (within 1 mm).
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Post by Bruce on Nov 9, 2019 4:28:06 GMT
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Post by Derek the Admin on Nov 10, 2019 2:46:29 GMT
I would suggest shim stock under the Z rails. That would be the easiest way to get it perfect.
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Post by aquanub on Feb 4, 2020 12:51:30 GMT
My Z plate appears to be off vertical by 0.01 to 0.02 mm per 50.8 mm (-0.01 to -0.02 degrees down and towards the back). This creates visible patterns that can be felt in larger surfaces.
What is the best way to adjust the Z plate to fix this? I know I could add a few layers of aluminum foil to the gantry or Z plate linear bearings, or in the Z plate itself. It might also be possible to do this re-positioning the X rail Extrusions (that sounds the easiest if they can be adjusted).
BTW: When I leveled the spoilboard the table was more flat than I expected (within 1 mm).
have you figured this out / done anything futher? i keep revisiting the tram on my PR and there does not seem to be a good way to give it fine adjustments. sometimes I try to adjust it via the spindle mount and it just gets worse  I've bought dial indicators, built and bought various tramming devices but i always fall mercy to the adjustments i'm able / unable to make. |
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oldtech
Full Member
Posts: 222
Machine: Power Route
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Post by oldtech on Feb 4, 2020 18:10:42 GMT
To some extent. I built a new z-plate and added a spindle adaptor plate. The adaptor plate screws (one in each corner) have a loose fit to allow side to side adjustments. For front to back alignment, I use shims inserted behind the spindle adaptor plate. All this can be done with the indicators in the spindle.
What I have not done is to add a screw mechanism to allow for fine and easier traming.
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Post by aquanub on Feb 4, 2020 19:44:09 GMT
To some extent. I built a new z-plate and added a spindle adaptor plate. The adaptor plate screws (one in each corner) have a loose fit to allow side to side adjustments. For front to back alignment, I use shims inserted behind the spindle adaptor plate. All this can be done with the indicators in the spindle. What I have not done is to add a screw mechanism to allow for fine and easier traming. do you have any photos of this? |
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I've bought dial indicators, built and bought various tramming devices but i always fall mercy to the adjustments i'm able / unable to make.