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Feature request? #17
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I've never used unlimited range servos but I could adapt the plugin for this. Do you have the reference of these servos so that I can investigate a little bit ? |
And this is why we would use trigonometry, the servo angle difference for each z hop isn't linear because of the distance between the servo and the print itself. |
The unlimited range is a mod you do to the servo. Basically you cut off its endpoint in the gear, and it just keeps going. Here is a link. What I was thinking is to use the servo, like a stepper motor. Figure out the distance of my camera track by moving the servo 1° at a time, from start to finish. Let's say it takes 692, 1° "steps". Then if I have a print that is 32 layers high. I divide the 692 possible 1° movements by the 32 layers to get 21. So every Z layer change, tell the servo to move 21° and get an "orbital" camera effect as it also would take a picture on the z layer change. It could be different for everyone too, and very customizable if people get creative. Right now in my picture above, the track I am designing is a 12" radius from the center of the X build location on my MK3. |
You could get some interesting shots I think. One I thought of that would be interesting: have the servo move to the left and right end points, every other z hop, while moving inwards to the center. So using my numbers above, the snapshots would be at 0, then 692, 21, 671, 42, 650 63, 629, etc... I think it would be a blurry effect that would slowly focus? Not sure how it would look. But might be interesting. |
Although the continuous rotation mod is interesting, I'm not sure that it would work very well. By opening the loop of the servo, you basically remove the angling reading and thus, you'll never know when asking to rotate at a certain speed for a certain amount of time if the servo rotated the correct angle. But I'll investigate on this, to see if there is a way to get some correct calculation. |
Hmmm. Yeah that sorta makes sense. But definitely above my knowledge. My thought was to send a signal to move +/- 1° (or whatever value). Even with different servos, I thought it would work. Just that it would be relative to each servo. I know with my rc transmitter, it just keeps going due to no hard stop. |
Hey ! |
I sorta follow what you're saying. Not sure how many people would want to control the servo with a joystick. Personally I'd prefer it to be automated. Also, to use the rc transmitter, you would need a receiver plugged in to receive commands from the transmitter. As far as replacing or adding the potentiometer, I don't think so. All there is, is a plastic tab on a gear inside. When that tab hits its end point, it stops. You just cut that tab off, and put it all back together. Then it spins continuously. |
I was meaning a joystick on the control tab of Octoprint, that would come back to the middle point if not held. |
Ah, ok. Again I kinda follow all that. But definitely above my electronics and programming knowledge. Which is next to zero, lol. |
Ahaha, no problem |
Hello, |
Ok. Yes, I use the 9g servo for my dollar tree foam board planes. Flite Test sells them. https://store.flitetest.com/flite-test-es08aii-9g-analog-servo-flt-3032/p785288 Bill |
Oops, what did I do? I'm new to github. Wanted to reply to your comment, but it "closed" this?? |
It's pretty impressive, isn't is the servo having some trouble in order to move all this mass ? |
To be honest, I haven't hooked it all up yet. Was kinda waiting to see what kind of control I could do fitst. I just drew up and printed the track and mount. But it shouldn't be a problem. It's really light weight, and I can slide it all easily by hand. |
Hi, I know it's been long since last post here but I just wanted to let you know that there is a continuous rotating servo, the FS90R. Physically same as 180deg SG90 9G. In case you are tinkering still with this and regular SG servo misbehaves maybe FS one will work better :) Also both servos have 1,5kg torque, pretty impressive for such small things! |
Hey! |
Wow, you're awesome! Thank you! |
Hi Zeleni-Zub, |
Hi iFrostizz, Awesome work my friend!! Thanks again! |
Great!! |
So @mebillica , sorry for the delay. I ordered some FS90R continuous servos and gonna play with them in more than one month when I'll be back home. |
@mebillica |
Closing this as it was released some time ago. I have also tested it here with continuous servos |
Thoughts?
Bill
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