Recent content by tjwal

Apparent it does, haven’t tried it myself. It needs to be installed on an Arduino Mega because the UNO doesn’t have enough pins.

The original software had some integer and error accumulation issues. By the end of the thread I believe these had all been resolved. I use my version posted in message 149. Kquiggle added in some enhancements after that.

Have you looked at the “rotary table for dummies thread”?

Thats an interesting design. Are the stl files available? I doubt my printer would be able to print that worm accurately enough but I might give it a try just because. Thanks John

I modeled a finger brake in fusion. I just wanted it to fit together and didn’t try to model movements. It was quite easy compared to Inventor. It was also a worthwhile exercise as the written instructions and diagrams weren’t always clear.

With no reduction (1:1) the original code will not work. On the line after where Table Ratio is defined another variable is defined const int Multiplier = (StepsPerRotation * TableRatio)/360 since it is defined as an integer, StepsPerRotation * TableRatio, must be evenly divisible by 360 to...

You will have to change the variable called “TableRatio”. It is currently set for a 36:1 rotary table. Are you driving a spindle directly from your stepper? If so, there are some other things that need to be done. John

If the motor is powered and enabled it will be difficult to turn by hand. This is true even without the Arduino connected. If it’s still easy to turn you have a problem with the driver/motor/power supply.

If you’re doing cast iron then more info on the melting and casting process, PLEASE. John

is the stepper harder to turn by hand when it is powered up?

If I remember correctly, I hope, the enable is not connected and relies on the driver having it on by default.

Enable is held either high or low. One way turns the steppers on the other way is off. The drivers I have worked with had them on by default. I think I had to pull EN high to turn the motor off. in any case with everything powered up if the stepper is enabled it will be hard to turn by hand.

Maybe this will work https://forums.autodesk.com/t5/fusion-360-support/opt-out-of-fusion-team/td-p/9389665

Either one will give you more reliable connections.