RE: The 6.4.0-alpha firmware is awesome (so far)
I guess that is where my confusion was coming from.
RE:
The sharp peak change you are looking for happens as you turn the knob; not when you stand there looking at the belts with a stable frequency. If the belt is moving while the light is strobing, the frequencies do not match. The belt should appear stable and unmoving, or 'locked' with the strobe.
But I agree with you, the user information that comes with this alpha is, well, nearly useless. Not sure how Prusa expects people to really test the feature if it the usage is so obtuse.
RE:
The sharp peak change you are looking for happens as you turn the knob; not when you stand there looking at the belts with a stable frequency. If the belt is moving while the light is strobing, the frequencies do not match. The belt should appear stable and unmoving, or 'locked' with the strobe.
But I agree with you, the user information that comes with this alpha is, well, nearly useless. Not sure how Prusa expects people to really test the feature if it the usage is so obtuse.
No, that is not how it works in this case. The belt is not moving laterally, it’s vibrating. It needs to be tuned to the belts resonant frequency. I suggest you try it for yourself first before commenting.
RE: The 6.4.0-alpha firmware is awesome (so far)
The instructions say to look for slow movement.
To confirm. Was I doing it right in the video??
RE:
The instructions say to look for slow movement.
To confirm. Was I doing it right in the video??
If you match with the web app and plucking the belt (with the head in the same position) then you did it correctly. Be careful with Prusa's instructions they tend to go through several iterations before they make sense. This is an alpha product so don't expect detailed (or correct) instructions at this point.
RE:
The instructions say to look for slow movement.
To confirm. Was I doing it right in the video??
If you match with the web app and plucking the belt (with the head in the same position) then you did it correctly. Be careful with Prusa's instructions they tend to go through several iterations before they make sense. This is an alpha product so don't expect detailed (or correct) instructions at this point.
Yeah I've noticed this, but also willing to cut some slack because the instructions are written by people who probably dont use English as their primary language, often getting interpreted/misinterpreted by people who dont use English as their native language.
There's no reason why they cant release a simple, decent frame rate video (with subtitles for every language under the sun).
As the old saying goes, actions speak louder than words, and would clear up anything that is lost in translation.
Just to clear something up: have the target frequencies changed again ? last time I looked it was 98/92.
RE:
The sharp peak change you are looking for happens as you turn the knob; not when you stand there looking at the belts with a stable frequency. If the belt is moving while the light is strobing, the frequencies do not match. The belt should appear stable and unmoving, or 'locked' with the strobe.
But I agree with you, the user information that comes with this alpha is, well, nearly useless. Not sure how Prusa expects people to really test the feature if it the usage is so obtuse.
No, that is not how it works in this case. The belt is not moving laterally, it’s vibrating. It needs to be tuned to the belts resonant frequency. I suggest you try it for yourself first before commenting.
It really IS the way it works. Whether motion is horizontal left right or horizontal front to back or up to down, the goal is to stop the motion with the strobe. Movement, in this case capturing a resonance, is captured using a strobe to synchronize the light to the motion. Any deviation from a stopped image means the two frequencies are not aligned and synchronized. It really is very simple physics.
When the two are not sync'd, you get a beat frequency, that slow motion in the video. If that motion is once per second, it means the belt is 1Hz away from the light (or possible a harmonic of 1 Hz), but that'd probably be obvious.
ps: In case it isn't obvious @hyiger, the belt really is moving as it vibrates. Just as it moves when you pluck it. From Google:
To use a strobe light to measure resonance, set up an object to vibrate and apply a strobe light, then adjust the strobe frequency until the object appears to be stationary or to vibrate slowly. When the strobe frequency matches the object's natural frequency (its resonance frequency), the object appears frozen in time, revealing its modal shape.