Why don't you try the VID28-05 stepper? It has 2 steppers with concentric shafts. It was absolutely made for what you're doing here, no wobbly shafts and no gear backlash. I found listings for it on several sites, prices vary wildly from 4 to 40 USD.
The first reason is that I didn't know about this motor. I first tried the x27 stepper and I had my problems to fix a needle to that thin shaft. I think i would face the same problem with this stepper. I made good experiences with these D shaped shafts. And it is a very cheap motor.
Great build like always! And nice to see, how You are working on improvements. Why do You use the steppermotors instead of 9g servos? (I would need to change my design ;) )
When you are using a servo for this gauge you have to use some gears because the needle has to move more than 180 degrees. And these steppers run smoother and much more quiet.
Nice to see you again, mate!
Been following for years!!! Keep going!! Just was looking yesterday if a new video was out.
It was hard, but I found the way back to the project.
Why don't you try the VID28-05 stepper? It has 2 steppers with concentric shafts. It was absolutely made for what you're doing here, no wobbly shafts and no gear backlash. I found listings for it on several sites, prices vary wildly from 4 to 40 USD.
The first reason is that I didn't know about this motor. I first tried the x27 stepper and I had my problems to fix a needle to that thin shaft. I think i would face the same problem with this stepper. I made good experiences with these D shaped shafts. And it is a very cheap motor.
Great build like always! And nice to see, how You are working on improvements. Why do You use the steppermotors instead of 9g servos? (I would need to change my design ;) )
When you are using a servo for this gauge you have to use some gears because the needle has to move more than 180 degrees.
And these steppers run smoother and much more quiet.