When I do a y-axis home, my printer makes a loud “brrrr” sound. Also when I move the printhead manually, the last bit of the y–axis (towards the y-endstop) moves with a lot of resistance.
I have made sure that the rods are parallel with a couple of printed helpers: thingiverse.com/thing:606083 but it still didn’t solve the problem.
My theory is that the 2 y-rods are too narrow/close in one end (back of printer) OR the printer head rod running along the y-axis is a millimetre or two too long, what do you guys think?
You have to make sure that the axis are really aligned by loosing the belts before you align the rods.
If that doesn’t help, make sure that the distance between the carriages are like in the manual.
Before you fast the belts again, make sure the rods move without any resistance!
Cheers,
Dylan
BTW: If one of your pulleys is broken (the screw thread) you will also have this effect…
Most often, the clamps are to close from each other on one of the axis (the values in the manual are not perfect). Try gently hammering away one of them (! fraction of a millimeter !!) and look if it’s better.
I just pushed one of the y-carriage rods towards the outer shell of the vertex (quite hard) and the rod dragged the clamp of the y-rod a bit making the whole y-rod + clamp package just a little bit wider, which solved the problem.
I used two small hammers, held one against the clamp on one side, and hammered gently on the other side.
After a few strokes the carriage was smooth as ever
Hi guys, I’m getting some trouble too… Hope it’s the same so you already found the solution. I don’t know exactly how to describe it…but brrrr it may be appropriate… I uploaded a video…to make it easier… Any suggestion? youtu.be/SFaw9jveVmw
Cheers Greg
[quote=“Deleswiss”]Hi guys, I’m getting some trouble too… Hope it’s the same so you already found the solution. I don’t know exactly how to describe it…but brrrr it may be appropriate… I uploaded a video…to make it easier… Any suggestion? youtu.be/SFaw9jveVmw
Cheers Greg[/quote]
Hi Greg,
It seems indeed to be the same problem. You know the solution now
well I did some adjustment but finally everything was already fine (axes check, motor pulleys, calibration…) and I still have this frightening brrrrtatatatat…noise :-/
Now just to be more specific…it’s happening when I use AutoHome (PC and on the printer). End stop looking good, clean and on… (I even reloaded the firmware…just in case).
What’s going on?
Hi Kulla,
No pretty smooth, during the print the printer are silent, axes are oiled with a lithium grease spray and clean. I get this situation only when the printer go in home position.
Does this happen in the last 5mm before the endstop on the Y-axis?
When I mounted the new pulleys I had also that problem… The trick is to align the printer first of all (you already did this).
Then you make the beltscrews of the X-axis loose. Just not enough to remove the belt clamp or the belt.
Then you move the head to Y = 0. Now thight the screws again a little bit. Try if it works by moving the printhead specially on the Y-axis while X = 200 (home).
OK? Then move again the printhead to Y = 0. Fully tight the screws now. Test it again.
NOT OK? Repeat these steps…
This is what worked for me. My printer is already printing now 3 full days non-stop (not in the night).
Is it happening when the Z axis moves up and down?
Mine did that and I made the Z bearing clamp for it. Much better. http://www.thingiverse.com/thing:635751
[quote=“Deleswiss”]Hi Kulla,
No pretty smooth, during the print the printer are silent, axes are oiled with a lithium grease spray and clean. I get this situation only when the printer go in home position.[/quote]
I would checked pulleys, tension on belts and distance between edges, when you remove belt (you can do it without complete disassemble) head should move smoothly, otherwise distance between ends is not ok, then when you add belts and pulleys it will get some tension because motors
I just pushed one of the y-carriage rods towards the outer shell of the vertex (quite hard) and the rod dragged the clamp of the y-rod a bit making the whole y-rod + clamp package just a little bit wider, which solved the problem.[/quote]
I had exact same problem and solution a couple of days ago.
When I moved the Y-axis to the back of the printer (home) I could see that the X-axis belt did some more slacking. Then I understood that the rod through the print head i X-direction was a little short. So I put my thums on the inside of the y-carriage on each side and pushed hard outwards. Problem solved.
oooook I’m not in Defcon 5 anymore… when I was close to waste it…obviously only after to had destroyed it… Bling! I tested the end stop sensor…100% result…ok stop with suspense :-/ anyhow (when I calibrated the axis…) a pulley moved by himself a little bit in the front panel direction…the a Y-axis could not get close enough to …stop the end-stop…and what happened it’s knows… Thank you everybody for your help (now I’ll perform some test nozzle-heated bed mk2 distance…manual speak about 0.35…forum 0.20… and last but not least a French guy measured the extruded filament with e step setting 200…and the quantity wasn’t right…so lot of stuff to do hope to not create a new caos)
I had this same problem and after a few hours of checking and rechecking to make sure the rods are alligned i figure out what was causing this noise. One of the pullies on the side for the y-axis was out too far which prevented the carriage from going over to the end stop. So there’s something else you could check, if the end stop is actually being reached.
I thought I had it solved, as reducing the tension of the belts appeared to solve the issue too - but then the dimensions of the products weren’t correct.
When reading this thread, I realized where the real issue was - light tapping & pushing to move the Y-carriage sliders outwards solved it for me too.
Dimensions are much better now & movement is smooth overall.
