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OK I was missing something. If you have a known amount of lash it is easy to compensate for. Take my earlier example of a 45 degree arc. You would first set up for the 45 degrees, plunge in and then cut. You then exit out and set up for 45.5 degrees (.5 degrees of lash compensation) and reverse...

John, If you power up the controller, go through set up and then run whatever. You then hit c and yes you do have time to hit the a but it will not take you to the settings screen? Maybe I am just not fast enough or I need to increase the splash screen time? I did lots of permutations with...

Thank you John, I loaded your sketch and it works great for speed adjustment. While playing with it I noticed I have .5 degrees of backlash. I adjusted out the lash and found that the 84 ozin motor dose not have enough torque to rotate the rotary table. It seems the highest torque motor I can...

Thank you John and Foozer, I am not sure I follow where to make the changes you suggested in regards to the screen: "To clean up screen char key = keypad.getKey(); lcd.clear(); <---- added lcd.print("Enterction:"); " However I made the bracket change to the "To Move" line and that worked great...

I have everything finished and hooked up. John's sketch dose some strange things with the maths. I typed in 17 divisions to test an odd number. It reports a move of 21.18 degrees and moves 1694 steps. The next time you hit the button it moves double the steps but reports the correct degrees...

Ok Guys here is my report. I fixed the case sensitive problems and I apparently transposed the numbers for rows and columns. I fixed that also. I am using an 84 ozin nema 17 motor to turn a Sherline rotary table that is 72:1. I changed the steps on the motor driver to 1/8 and in the sketch to...

John, I typed long with an upper case L and am assuming we are case sensitive? As for the keypad pin out fozzer's description is accurate. I renumbered your sketch to match Bob's as I had already wired it and it was working correctly under Bob's sketch. When trying yours with the numbers...

John, I,m sorry I was referring to Bob's sketch in this tutorial! I also made the changes you listed and I got this error for line 164 change "Long was not declared in this scope"? Thanks for your patience, Jeff

tjwal, In the beginning of your sketch you have user defined variables. I used pin assignments from Rod's original sketch. So I changed those and also the ones for the key pad to what Rod had for rows and columns. I then downloaded the sketch but the key pad was not responsive. What might I be...

Thanks Guys, That was a great explanation and very easy to follow. Rod's sketch is working for me because the only change I made was to double the ratio for the gearing. His was 36 and mine is 72. I am going to do some more reading and attempt some changes on my own. I will try tjwal's sketch...

That is pretty funny! I was coming here to ask that question. I read Rods reply which was a bit over my head so I did some research. I was wondering if I would be able to use long integers? I am not sure I understand about the compiler conversion though? I guess I need to do more reading...

Bob, That is why I was going to ask my 16 year old daughter first! dodged the bullet there. Anyway here are the results ....it will not work with anything but 400 steps (1/2 step)? I would really like to take better advantage of micro stepping as it has a lot of resonance at 1/2 step. Do you...

I put it back to the original 400 and 36 and got a good scope reading. I did set the driver to half step and then hooked it up and it worked. I need to change the ratio to 72 and see if it will still works? Thanks, Jeff K.

Here are some pics!

Thanks for the reply. I did disconnect the driver and power supply prior to making the check with the scope. As for the 6600 I have one on the bench connected to my other project I was working on prior to getting the components for this one. It is attached to a rotary tool changer I built to go...

Ok, I ordered the stuff, waited three months, then followed the instructions and made it to post 19. Bob says if you own a scope you probably stop reading? Not me LOL. I finished the project but the stepper will not move? Every thing seems to work and I tried two different stepper drives. The...