How Much Torque Needed for Stepper Motor?

Comments

• Bean Posts: 8,129

  2004-10-31 04:27 edited 2004-10-31 04:27

  Steppers have most torque at slow speed. and using two poles at the same time.
  
  How fast are you stepping it ?
  
  Are you using two poles at the same time ?
  
  Can you post the code ?
  
  Bean.
• caper Posts: 9

  2004-10-31 23:15 edited 2004-10-31 23:15

  ' {$STAMP BS1}DIRS = %00011111SYMBOL Delay = B0SYMBOL Up = B1SYMBOL i = B4Delay = 10STEP1:PAUSE 10000UP = PIN5IF UP = 1 THEN PointUp GOTO PointDown PointUp: IF PIN6=1 OR PIN7=1 THEN Align PINS=%00001010 PAUSE Delay IF PIN6=1 OR PIN7=1 THEN Align PINS=%00001100 PAUSE Delay IF PIN6=1 OR PIN7=1 THEN Align PINS=%00000101 PAUSE Delay IF PIN6=1 OR PIN7=1 THEN Align PINS=%00000011 PAUSE Delay GOTO PointUp PointDown: IF PIN6=1 OR PIN7=1 THEN Align PINS=%00001010 PAUSE Delay IF PIN6=1 OR PIN7=1 THEN Align PINS=%00000011 PAUSE Delay IF PIN6=1 OR PIN7=1 THEN Align PINS=%00000101 PAUSE Delay IF PIN6=1 OR PIN7=1 THEN Align PINS=%00001100 PAUSE Delay GOTO PointDownAlign: IF PIN6=1 THEN BrakeLeft IF PIN7=1 THEN BrakeRightENDBrakeLeft: IF up=1 THEN BrakeLeftUp GOTO BrakeLeftDown BrakeLeftUp: IF PIN7=1 THEN TurnAround PINS=%00001010 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001110 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00000110 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00000010 PAUSE Delay GOTO BrakeLeftUp BrakeLeftDown: IF PIN7=1 THEN TurnAround PINS=%00001010 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00000010 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00000110 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001110 PAUSE Delay GOTO BrakeLeftUpBrakeRight: GOTO BrakeRightDown BrakeRightUp: IF PIN7=1 THEN TurnAround PINS=%00001010 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001000 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001001 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001011 PAUSE Delay GOTO BrakeRightUp BrakeRightDown: IF PIN7=1 THEN TurnAround PINS=%00001010 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001011 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001001 PAUSE Delay IF PIN7=1 THEN TurnAround PINS=%00001000 PAUSE Delay GOTO BrakeRightDownTurnAround: FOR i = 1 TO 100 PINS=%00001010 PAUSE Delay PINS=%00001111 PAUSE Delay PINS=%00000101 PAUSE Delay PINS=%00000000 PAUSE Delay NEXT IF up=1 THEN TargetUp 'Heads toward the target 500 steps GOTO TargetDown TargetUp: FOR i = 1 TO 500 PINS=%00001010 PAUSE Delay PINS=%00001100 PAUSE Delay PINS=%00000101 PAUSE Delay PINS=%00000011 PAUSE Delay NEXT GOTO DropEgg TargetDown: FOR i = 1 TO 500 PINS=%00001010 PAUSE Delay PINS=%00000011 PAUSE Delay PINS=%00000101 PAUSE Delay PINS=%00001100 PAUSE Delay NEXT GOTO DropEgg DropEgg: PIN4 = 1 PAUSE 5000 'Leaves pin4 on for 5sec (5000ms) PIN4 = 0 GOTO Evacuate Evacuate: IF up=1 EvacuateUp GOTO EvacuateDown EvacuateUp: FOR i = 1 TO 10000 PINS=%00001010 PAUSE Delay PINS=%00001100 PAUSE Delay PINS=%00000101 PAUSE Delay PINS=%00000011 PAUSE Delay NEXT EvacuateDown: FOR i = 1 TO 500 PINS=%00001010 PAUSE Delay PINS=%00000011 PAUSE Delay PINS=%00000101 PAUSE Delay PINS=%00001100 PAUSE Delay NEXT
• Dave Paton Posts: 285

  2004-11-01 14:26 edited 2004-11-01 14:26

  I'd try to increase the value of delay. That will slow the stepper down and push it towards the high torque end of it's performance curve. Keep us posted
  
  -dave
  
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