Thank you. I am clearly not as experienced with stepper motors as you. What are the chances of motors not syncing with a dual motor setup per axis?by gubehikupe - Mechanics
Also something else I found: These are used inside CD or DVD drives. CD has 625 lines per mm which is more than enough. But not sure if it can meet the speed requirement. Would be perfect if was shorter. Perhaps there are similar drives for smaller CDs/DVDs or other optical discs such as Sony's discontinued UMD that can be sourced online?by gubehikupe - Mechanics
I understand your concerns but I don't think these kind of precision optical engineering parts are used in camera lenses and projectors or other end products. I'm also not fond of 3d printer parts, plastics are not as rigid as metals and in these sizes I think definitely can introduce backlash, especially 3d printed ones where there are layers not fused together as well as injection molded plastiby gubehikupe - Mechanics
It's a distance measurement sensor, can handle the resolution fine. 1024 is all the steps needed, without in between steps needed (microsteps). I'm personally more concerned about the mechanical limitations of these tiny stepper motors/actuators. By that I mean ability to move such short lengths correctly (no backlash, etc), ability to reach speed and acceleration requirements and torque necessaby gubehikupe - Mechanics
30mm diameter, not FL. Need it to move 1/4th of its size (7.5mm) up/down and left/right. It's actually a 3 element lens, about 60 grams. Will be controlled by arduino with a sensor. Do you think it is doable or expects too much mechanical precision? I've only managed to find few possible solutions but there is very little info on each on the internet or youtube.by gubehikupe - Mechanics
I dont follow, sorryby gubehikupe - Mechanics
Looking for a way to shift a 30mm len in two axis perpendicular to another lens. The lens is for shifting a video projection up, down, left, right. Basically what you will find in tilt-shift camera lenses or video projectors with motorized lens-shift feature. The travel distance is very short, 1/4th of the 30mm lens diameter, but precision has to be at least 1024 steps across that 30mm/4 length.by gubehikupe - Mechanics