Just built my merc but the rails are binding or something not sure where to look
#screechy linear rails
frigid ridge
dawn hinge
- Did you clean the rails and afterwards Grease them? (The first oil on the rails is just for corrosion prevention)
- Did you tighten the screws on the carriages too much? (If yes the carriage is very hard to move by hand (without belts))
- Is the y-axis parallel moving/ is something not alignment
- Did you cut the two belts at the exactly same length and tighten them correctly?
frigid ridge
if you lower the speed does it go away?
lower printing speed it goes away
frigid ridge
1. Did you clean the rails and afterwards Grease them? (The first oil on the rai...
- I cleaned them and relubed using EP2 (only thing I have in hand)
- I only tightened on the ball end side of the hex key so I don't think its that tight
3&4. I used the helpers from the usermods to lock the gantry parallel as i did the belts and stuff, length one belt is slightly longer than the other but i did tension them to 110hz or A2
unique harbor
lower printing speed it goes away
stealthchop on or off
frigid ridge
stealthchop on or off
i had it on because it was very loud otherwise
let me try without again
dawn hinge
Ok,
Did you check your idlers if they move freely? It can happen that a idler gets squished or damaged and doesn’t move correct anymore.
unique harbor
that sound is the same I had with stealthchop on
speeds above 100/150 depending on printer you get that sound
I simply turned it off, my motors are not exactly noisy with it on and I get higher accelerations too
frigid ridge
Ok,
Did you check your idlers if they move freely? It can happen that a idler g...
rebuilt them yesterday, all moving smoothly
sounds better with spreadcycle
is there a way to determine max movement speeds with a macro?
dawn hinge
I can send you a code line you can enter in the command line
So your printer x-axis will move forward to 0 and then back to position 200 with increasing accel
I can change the code to the y-axis aswell if you want it
frigid ridge
I can change the code to the y-axis aswell if you want it
Thanks Marco that would be very helpful, I just used the default voron 2.4 config for the [printer]
dawn hinge
This code is from @patent magnet he did that code line
This code is for the y-axis movment and give me a sec i will change it to work on the x-axis as well
Movementrange y0 to y220
g1 x110 y0 f2000
g1 x110 y220 f2100
g1 x110 y0 f2200
g1 x110 y220 f2300
g1 x110 y0 f2400
g1 x110 y220 f2500
g1 x110 y0 f2600
g1 x110 y220 f2700
g1 x110 y0 f2800
g1 x110 y220 f2900
g1 x110 y0 f3000
g1 x110 y220 f3100
g1 x110 y0 f3200
g1 x110 y220 f3300
g1 x110 y0 f3400
g1 x110 y220 f3500
g1 x110 y0 f3600
g1 x110 y220 f3700
g1 x110 y0 f3800
g1 x110 y220 f3900
g1 x110 y0 f4000
g1 x110 y220 f4100
g1 x110 y0 f4200
g1 x110 y220 f4300
g1 x110 y0 f4400
g1 x110 y220 f4500
g1 x110 y0 f4600
g1 x110 y220 f4700
g1 x110 y0 f4800
g1 x110 y220 f4900
g1 x110 y0 f5000
g1 x110 y220 f5100
g1 x110 y0 f5200
g1 x110 y220 f5300
g1 x110 y0 f5400
g1 x110 y220 f5500
g1 x110 y0 f5600
g1 x110 y220 f5700
g1 x110 y0 f5800
g1 x110 y220 f5900
g1 x110 y0 f6000
g1 x110 y220 f6100
g1 x110 y0 f6200
g1 x110 y220 f6300
g1 x110 y0 f6400
g1 x110 y220 f6500
g1 x110 y0 f6600
g1 x110 y220 f6700
g1 x110 y0 f6800
g1 x110 y220 f6900
g1 x110 y0 f7000
g1 x110 y220 f7100
g1 x110 y0 f7200
g1 x110 y220 f7300
g1 x110 y0 f7400
g1 x110 y220 f7500
g1 x110 y0 f7600
g1 x110 y220 f7700
g1 x110 y0 f7800
g1 x110 y220 f7900
g1 x110 y0 f8000
g1 x110 y220 f8100
g1 x110 y0 f8200
g1 x110 y220 f8300
g1 x110 y0 f8400
g1 x110 y220 f8500
g1 x110 y0 f8600
g1 x110 y220 f8700
g1 x110 y0 f8800
g1 x110 y220 f8900
g1 x110 y0 f9000
g1 x110 y220 f9100
g1 x110 y0 f9200
g1 x110 y220 f9300
g1 x110 y0 f9400
g1 x110 y220 f9500
g1 x110 y0 f9600
g1 x110 y220 f9700
g1 x110 y0 f9800
g1 x110 y220 f9900
g1 x110 y0 f10000
unique harbor
dawn hinge
there is this macro https://ellis3dp.com/Print-Tuning-Guide/articles/determining...
Yes or this one 😅
frigid ridge
Thanks, 220 is my max because im printing on my Ender 3's bed lmao
dawn hinge
thats for x-axis
g1 y110 x0 f2000
g1 y110 x220 f2100
g1 y110 x0 f2200
g1 y110 x220 f2300
g1 y110 x0 f2400
g1 y110 x220 f2500
g1 y110 x0 f2600
g1 y110 x220 f2700
g1 y110 x0 f2800
g1 y110 x220 f2900
g1 y110 x0 f3000
g1 y110 x220 f3100
g1 y110 x0 f3200
g1 y110 x220 f3300
g1 y110 x0 f3400
g1 y110 x220 f3500
g1 y110 x0 f3600
g1 y110 x220 f3700
g1 y110 x0 f3800
g1 y110 x220 f3900
g1 y110 x0 f4000
g1 y110 x220 f4100
g1 y110 x0 f4200
g1 y110 x220 f4300
g1 y110 x0 f4400
g1 y110 x220 f4500
g1 y110 x0 f4600
g1 y110 x220 f4700
g1 y110 x0 f4800
g1 y110 x220 f4900
g1 y110 x0 f5000
g1 y110 x220 f5100
g1 y110 x0 f5200
g1 y110 x220 f5300
g1 y110 x0 f5400
g1 y110 x220 f5500
g1 y110 x0 f5600
g1 y110 x220 f5700
g1 y110 x0 f5800
g1 y110 x220 f5900
g1 y110 x0 f6000
g1 y110 x220 f6100
g1 y110 x0 f6200
g1 y110 x220 f6300
g1 y110 x0 f6400
g1 y110 x220 f6500
g1 y110 x0 f6600
g1 y110 x220 f6700
g1 y110 x0 f6800
g1 y110 x220 f6900
g1 y110 x0 f7000
g1 y110 x220 f7100
g1 y110 x0 f7200
g1 y110 x220 f7300
g1 y110 x0 f7400
g1 y110 x220 f7500
g1 y110 x0 f7600
g1 y110 x220 f7700
g1 y110 x0 f7800
g1 y110 x220 f7900
g1 y110 x0 f8000
g1 y110 x220 f8100
g1 y110 x0 f8200
g1 y110 x220 f8300
g1 y110 x0 f8400
g1 y110 x220 f8500
g1 y110 x0 f8600
g1 y110 x220 f8700
g1 y110 x0 f8800
g1 y110 x220 f8900
g1 y110 x0 f9000
g1 y110 x220 f9100
g1 y110 x0 f9200
g1 y110 x220 f9300
g1 y110 x0 f9400
g1 y110 x220 f9500
g1 y110 x0 f9600
g1 y110 x220 f9700
g1 y110 x0 f9800
g1 y110 x220 f9900
g1 y110 x0 f10000
dawn hinge
Thanks, 220 is my max because im printing on my Ender 3's bed lmao
stock ender 3/5 beds can do 235x235
the beds are similar with the size
frigid ridge
Yeah but I got binder clips on a 370 as well
also im running 1.13amps on the motors, I think thats right
dawn hinge
Yeah but I got binder clips on a 370 as well
Ahhh ok now i understand
i only run my motors on 0.80amps (nema17 42x48 motors from stepperonline)
frigid ridge
Ahhh ok now i understand
i only run my motors on 0.80amps (nema17 42x48 motors ...
I'll drop them down
dawn hinge
is there something loose or a screw to long on your frame that gives you the scratching noise?
frigid ridge
let me redo the x test at 0.8
it did fine at 1.13 but there was a resonant frequency in the middle
i think the bltouch pin a culprit
yeah the pin vibrates a lot, but with this thread I have managed to cut down the noise so much
dawn hinge
i think the bltouch pin a culprit
yes it can be i had a cr-touch running that vibrated like hell
the fix was klicky 😅
frigid ridge
yes it can be i had a cr-touch running that vibrated like hell
the fix was klic...
That's on the agenda definitely
dawn hinge
That's on the agenda definitely
I hope i could help but check out the link from @unique harbor
with ellis tuning guide its a very good guide
frigid ridge
I've started using the ellis guides and they are great, just never made to the end lol
Might ask for a serial if I am lucky, I am out of zipties so the wiring looks shit but worth a shot lol
dawn hinge
Might ask for a serial if I am lucky, I am out of zipties so the wiring looks sh...
You wont get a serial until the cables are managed good 😅
A lot of people try´d it
frigid ridge
You wont get a serial until the cables are managed good 😅
A lot of people try´...
Damn
dawn hinge
Yes they are looking on that so every merc looks ok with the cables
frigid ridge
Maybe I have some more somewhere
dawn hinge
use a string to keep the cables together
you can cut it afterwards
frigid ridge
i got some velcro ties as well somewhere
iron swift
1. I cleaned them and relubed using EP2 (only thing I have in hand)
2. I only ti...
Its is very important that the belts are exactly the same size
frigid ridge
Its is very important that the belts are exactly the same size
One is 5cm longer but I did them to the same tension when I screwed the belts in
iron swift
One is 5cm longer but I did them to the same tension when I screwed the belts in
If the belts are different legths and they are at the same tension then it will create some binding
frigid ridge
If the belts are different legths and they are at the same tension then it will ...
How long do they have to be for a 370
I didn't see any numbers so I eyeballed it
iron swift
dont know the exactly how long they need to be but just have to make sure they are the same
put the two belts together with the teeth facing eachother so they interlock and cut them the same
then when you install if you have the same number of teeth sticking out where you attach ends of belts then you know they will be the same... exact same number of teeth on each belt
iron swift
I don't see why the length matters too much however
if they are different legths but tunned to the same frequency then one is still longer than the other and the longer one has to be tighter to get to the same frequency
frigid ridge
Well it depends where you tighten it