I could use some help
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@mac said in I could use some help:
@fcwilt well, here's the first problem, and I remember changing this to half of these numbers:
M92 X80.00 Y80.00 Z4000.00 E420.00
All that matters is what they are now in the config.g file because those are the values that you have been using everything you have re-booted the printer.
If what is there now for Y now is 80 then just replace the 80 with 85.433, re-boot and re-test Y movement.
Thanks.
Frederick
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@fcwilt I'm been redoing the measurement to see if it's the same each time. I'm more comfortable with 1.5625 inches, which is 39.6875 mm.
50 divided by 39.6875 is 1.2598.
80 times 1.2598 is 100.784.That sounds like 100 to me.
I think those are better numbers, don't you?
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@mac said in I could use some help:
@fcwilt I'm been redoing the measurement to see if it's the same each time. I'm more comfortable with 1.5625 inches, which is 39.6875 mm.
50 divided by 39.6875 is 1.2598.
80 times 1.2598 is 100.784.I think those are better numbers, don't you?
Now that is starting to make sense. 100 is a value that is common in "printer land".
So assuming X and Y use the same hardware setup (belts, pulleys, etc) then you should enter 100 for X and Y.
I bet that will work out just fine.
Especially once we find the issue that is causing the X stepper to malfunction. Any evidence yet to indicate an intermittent wiring problem?
Oh yes. After you have 100 in place for Y, at least, re-boot and try homing Y and see if it triggers the Y endstop twice and returns to the center of the bed.
I have my fingers crossed.
Frederick
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@fcwilt Okay, I'm going to change X and Y to 100.00 each. Save, reboot, and then Home Y.
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@mac said in I could use some help:
@fcwilt Okay, I'm going to change X and Y to 100.00 each. Save, reboot, and then Home Y.
Fingers still crossed.
Frederick
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@fcwilt Okay, Y started out very slowly, and went towards HOME (the rear of the printer), but stopped 89mm from the end-stop.
I'm sorry, Frederick, it's just not happening.
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@mac said in I could use some help:
@fcwilt Okay, Y started out very slowly, and went towards HOME (the rear of the printer), but stopped 89mm from the end-stop.
I'm sorry, Frederick, it's just not happening.
And yet jogging Y is now yielding correct distances?
Frederick
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@fcwilt The nozzle is 51mm west of the front of the bed (the back of the printer is pointed west).
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@fcwilt I haven't tried to find that out yet. I'll do that now.
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@mac said in I could use some help:
@fcwilt The nozzle is 51mm west of the front of the bed (the back of the printer is pointed west).
OK back to my previous question.
With the new value of 100 are Y movements done via jogging moving the correct distances?
Frederick
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@fcwilt I have an American tape measure going from the front of the printer to the back rail, where it's hooked on to the back rail. What I'm doing is bringing the adjustment wheel for the left corner of the bed to 10 inches. I just watched the bed move from 10 inches to 12 inches twice. So the bed travelled back and forth 51mm twice.
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@fcwilt they appear to be consistent.
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@fcwilt okay, I did a test. I clicked on Y-50 twice. That took the rear of the bed to the endstop (it hit it, versus touching it and backing away).
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@mac said in I could use some help:
@fcwilt I have an American tape measure going from the front of the printer to the back rail, where it's hooked on to the back rail. What I'm doing is bringing the adjustment wheel for the left corner of the bed to 10 inches. I just watched the bed move from 10 inches to 12 inches twice. So the bed travelled back and forth 51mm twice.
I don't care about homing Y right now because we know it is not working.
I need to be sure that Y movements done via jogging are now moving the correct distances.
Once that is assured the next step will be to determine if the current min/max limits for the Y axis are correct.
Why? Because I based my Y homing code on them. If they are wrong the homing code is wrong and will not work.
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@mac said in I could use some help:
@fcwilt they appear to be consistent.
What appear to be consistent?
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@fcwilt I'm looking at the Status window? Y is currently at 34.5.
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@fcwilt I just moved the bed FORWARDS. Y is now at 124.5.
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@mac said in I could use some help:
@fcwilt okay, I did a test. I clicked on Y-50 twice. That took the rear of the bed to the endstop (it hit it, versus touching it and backing away).
Where did the test start from? The fact that -100 took the rear of the bed to the endstop tells us nothing without knowing where the bed started from.
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@mac said in I could use some help:
@fcwilt I'm looking at the Status window? Y is currently at 34.5.
You cannot trust those numbers until you are absolutely sure the 100 is the correct value for Y in M92.
If M92 values are off everything the printer "says" and does will be off.
Frederick
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@fcwilt okay, here's something, I moved the Y-axis as far forwards as it would go. Status is saying I'm at 220.00.
The nozzle is 59 mm in front of the rear of the bed. So, for the nozzle to be at the back of the bed, the front of the bed has to go another 59mm. At which point Status should say Y is at 279.0.
