Originally Posted by
sandefuj
Hi tjs88yj:
I have a very similar setup to yours, same motors and the viper 200’s different BB though. If you want to see how many steps of error your move from X=75mm to X=0 is, use the e command from hyper terminal. As the axis’s is moving press the e key over and over and you will see the error’s in HEX, then convert to decimal. I tried this and whenever I entered the 'e' key it returned all 0's. If you are using a step multiplier of 4 then divide your converted decimal values by 4 to get the actual steps of error. I am not using a step multiplier. Should I be? If so how large of a multiplier? On the Viper does the yellow LED ever blink during the move?No just stays solid yellow. The yellow LED tells you that you are losing position (steps) greater than your R value assigned for the drive. I have the R value set at 150 is this too large? Also something to check is in Mach3 under motor tuning for the bad axis’s to make sure you have your Steps Per correct; when you try and move one inch do you get one inch of travel? Yes, as long as I have the feed rate set below 4 IPM. After you get things working, make sure you setup the f (feed forward), it’s really cool, you can dial in your drive to almost no error as you move your table around.
Jay
Tom
1986 Hurco SM1 Stock ElectroCraft Servos and encoders, Larkin Viper 200 drives, Smoothstepper, CNC4PC C23 BOB, Dura Pulse GS3 VFD, Mach 3