The 6.4.0-alpha firmware is awesome (so far)
Took the plunge. Here's what I found so far
- Installation - no issues
- Immediately noticed that the head bangs are greatly reduced on auto-homing, I think I counted just 4 total. Before the print it goes back to the previous head bang routine.
- The belt tuner wizard. This is a game changer with the strobe versus past methods. It is very easy to get the belts dialed in now. Took me a little bit of practice to spot the right resonance but now it's super intuitive. I checked the frequency of the belts afterward using the belt tuner and they were both 98/92.
- Minor bug with Prusa Connect. I sent g-code to be printed immediately and it just sat queued up instead of starting the print. Sent it again and it went through.
- Filament loading is a bit faster. Looks like the nozzle is being preheated.
- Noticed there is a cold pull wizard. I don't remember seeing it on the previous firmware (or maybe I just didn't look)
Anyway, just finished a test print and it looks good.
RE: The 6.4.0-alpha firmware is awesome (so far)
Yeah just noticed this was out. I'll be trying the strobe thingy a bit later.
Currently running rc of Prusaslicer, and soon an alpha of Core One firmware 😂...I normally avoid alpha and most beta releases but this is too tempting.
RE: The 6.4.0-alpha firmware is awesome (so far)
The new firmware is a step in the right direction.
The tuning wizard shows the path of where things should go.
I just have the following problem:
According to the tuning wizard, my upper belt is at 98Hz and my lower belt at 96.5Hz.
But when measuring the frequency (with different apps), I always get 96Hz on the upper belt and 92Hz on the lower belt.
So, who should I trust now?
RE: The 6.4.0-alpha firmware is awesome (so far)
Will give the release a try next week, the belt tuning was a major PITA for me consistently...
Is it easy to revert to the stable release if things go south btw? Never tried an alpha/beta before.
RE: The 6.4.0-alpha firmware is awesome (so far)
The new firmware is a step in the right direction.
The tuning wizard shows the path of where things should go.
I just have the following problem:
According to the tuning wizard, my upper belt is at 98Hz and my lower belt at 96.5Hz.
But when measuring the frequency (with different apps), I always get 96Hz on the upper belt and 92Hz on the lower belt.
So, who should I trust now?
This is the tricky bit (for me) was getting the correct resonance. I noticed two resonances. Large amplitude, high frequency and large amplitude, low frequency. It's the later that is the result. I started by using the app to measure the frequency and then dialed that number on the belt tuner. Then observed the behaviour +/- 1hz. Now that I know what to look for I can get the two measures to agree.
RE: The 6.4.0-alpha firmware is awesome (so far)
Will give the release a try next week, the belt tuning was a major PITA for me consistently...
Is it easy to revert to the stable release if things go south btw? Never tried an alpha/beta before.
Yes, you can back out to the previous release. If I remember you just hold down the reset button, turn on the printer and it will force install whatever firmware is on the USB. I haven't tried this so, will try later today as an exercise and report back.
RE: The 6.4.0-alpha firmware is awesome (so far)
Can someone do a video of how to use the Belt Tuner? Cool yes, intuitive... not so much.
RE: The 6.4.0-alpha firmware is awesome (so far)
Can someone do a video of how to use the Belt Tuner? Cool yes, intuitive... not so much.
I'll try to do one when I get home from work later.
RE: The 6.4.0-alpha firmware is awesome (so far)
I wonder if the belt tuner has any correction for the printhead position, in my case when I run it the printhead is in home position while for previous manual method I had to move it to the front right.
RE: The 6.4.0-alpha firmware is awesome (so far)
I wonder if the belt tuner has any correction for the printhead position, in my case when I run it the printhead is in home position while for previous manual method I had to move it to the front right.
It homes the head to the front right and then locks it in place. It then vibrates both belts, you turn the knob +/- until you get maximum resonance on the top belt, press the knob and turn it until you get maximum resonance on the bottom belt. Press the knob again and it goes to a screen that tells you (if needed) how much and in what direction to turn the screws. You can then go back do the adjustment again or exit.
I practiced first by taking a measurement with the belt tuner web app then setting the dials to the frequency registered in the belt tuner app. Moving the dials up and down and comparing the movement as well as listen to the sounds of the vibrations.
RE: The 6.4.0-alpha firmware is awesome (so far)
I ended up with TOP at 92 and bottom and 86... belt tuner in printer says its ok.... I dont get this system...
A video explaining the process would be super helpful.
RE: The 6.4.0-alpha firmware is awesome (so far)
I ended up with TOP at 92 and bottom and 86... belt tuner in printer says its ok.... I dont get this system...
A video explaining the process would be super helpful.
That's odd because I had something similar and it went into the screw turning screen, told me to tighten each 1/8 of a turn. Afterwards, ran the strobe tuner again and I had 97/92. Compared it with the belt tuner webapp which gave me the same numbers.
RE: The 6.4.0-alpha firmware is awesome (so far)
Not here. I can select 92/86 and it is says its fine.
The belt tuner app in the phone is bang on also. 92-86.
A video of how to use this would be super helpful.
RE: The 6.4.0-alpha firmware is awesome (so far)
Not here. I can select 92/86 and it is says its fine.
The belt tuner app in the phone is bang on also. 92-86.
A video of how to use this would be super helpful.
If the strobe method and the pluck method are giving you the exact same reading then I would simply answer that you are doing it correctly and when hit "Continue" to go to the "Screw adjustment" screen and it's not telling you to adjust it then maybe it's a bug? Tighten each screw 1/8th of a turn and measure again.
RE: The 6.4.0-alpha firmware is awesome (so far)
going in circles here. I will just wait for someone to post a video of how it is supposed to be used. No idea what slow sharp peak means when looking at the belt.
RE: The 6.4.0-alpha firmware is awesome (so far)
It homes the head to the front right and then locks it in place. It then vibrates both belts, you turn the knob +/- until you get maximum resonance on the top belt, press the knob and turn it until you get maximum resonance on the bottom belt.
There's one small difference I see, with the old method you had to park the head in the rightmost position and now it homes around 10-11mm to the left from it, making effective belts length shorter thus increasing the resonance frequency assuming old/new tension should be equal. So the question then is how to interpret the frequency you get with the new tuner and what is the new target frequency pair, is it still 96/92 or something else.
RE: The 6.4.0-alpha firmware is awesome (so far)
I made a video of what I am doing. Maybe it helps.
RE:
It is easier if you take the top off and look down at the belts. Starting with top belt you will see it oscillate back and forth relative to the bottom belt which will be stationary. Turn the nob left and right until the oscillation is maximum. Do the same with the bottom belt.
RE: The 6.4.0-alpha firmware is awesome (so far)
https://photos.app.goo.gl/hqbnHnT7QUMum6p88
Like this?
This results in a complete different reading. It is saying the belt os at 101.5.
Old method (plucking) says 97.
RE:
https://photos.app.goo.gl/hqbnHnT7QUMum6p88
Like this?
This results in a complete different reading. It is saying the belt os at 101.5.
Old method (plucking) says 97.
Yes, but in the new method the head is at the home position and not at the most front right position meaning its -1 cm in the X and Y direction from the edge. When you pluck the belts with the head in the same position as it was for the resonance tuner then you should get the same numbers back. I do when I test it. So when plucking to compare, make sure the head is in the same position it was when using the strobe tuner. Otherwise, it will be different.