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Rotary Knob - "Clicks" don't align with input  

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eric.s.falk
(@eric-s-falk)
New Member
Rotary Knob - "Clicks" don't align with input

Hey all - 

This has been a long-term slight nuisance that I've finally broken down with this attempt to describe, hoping that someone else out there has identified the root cause.

It seems that the physical "clicks" or settling points for the rotary knob do not line up with the actuation point for the potentiometer or whatever electrical device is sending inputs to the controller. Sometimes I'll spin the knob 1 click and it'll move the display 1 space, other times it won't register, sometimes it'll move the display twice.

What's the cause?

Napsal : 18/01/2021 2:39 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Rotary Knob - "Clicks" don't align with input

the rotary encoder is not an exact device, and sometimes the program chooses to ignore the encoder...  for example, when changing the print speed, the initial few clicks appear to be ignored and then you start scrolling say you click down to 75%...   the encoder appears to be interrupt driven, with a low priority, by an 8bit processor with a moderately high work load... so it is possible some steps are missed...  then, If you scroll up to say 125%, the controller will work reasonably smoothly until you reach 100%, where it will seem to Pause, before continuing to 125%...   going either way, the encoder will seem to pause as it passed 100%

If you 'Half' click the encoder, it is anybody's guess which menu choice, you will get. so... If you are selecting a file, on the SD Card, wait until the choice you want, starts scrolling (Assuming you have long file names,) before pressing the select button, and you can almost guarantee to get tthe file that you intended.  but if you dial and click quickly, you will probably get t he file after the one that you want, in the direction that you are scrolling... 
additionally, at various various points on the menu system, the dial seems to go the intuitively, wrong way... 

My car radio, has a digital encoder, and it also seems to over step  etc. occasionally. 

It's what it is... 

getting it to be more precise, would probably result in slower functionality of some processes, it the printing is slowed to permit more time for encoder resolution, there will be complaints about speed of printing. 

 the developers are doing their best...   the next range of printers will have more capable processors... In the mean time this is open source software and hardware, Change what you can change and accept what you can't change offer suggested improvements to the developers in GitHub, and be grateful if they include some of your ideas. your happiness will last longer .

regards Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Napsal : 18/01/2021 3:09 am
eric.s.falk
(@eric-s-falk)
New Member
Topic starter answered:
RE: Rotary Knob - "Clicks" don't align with input

Ok, "working as intended".

Thanks for confirming.

Napsal : 18/01/2021 6:56 pm
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