Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: kocher on September 16, 2010, 06:23:48 PM
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my new machine motor drive fast and y axis its not get enough power to move the y table it run fast and go to middle then it lossing setp and xzc as well if i touch it will sotp can anyone please tell me how to give more power to axis many thanks.
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Would need a bit more info but basically sounds like you need bigger motors or gear them to give more torque. Or it could be that your axis is binding and causing the motors to stall.
Hood
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hi, sorry for daley i just got home, i have to 2 driver board one of them it drive fast and make the machine stall ( 23 nema motor ) and the other driver board it go stronge yxza go fine but its too slow all go fine but too slow , hopfully it will help waiting help from you or any member many thanks
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Motor tuning controls the rapid speed(velocity) and also you need the correct steps per unit set there and also the Acceleration may cause problems if too high.
Hood
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i got 2000 step per/120 velocity/ 4 Acceleration / 0 step pulse / 0 dir pulse hope it will help
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Not really as I dont have a clue about the machine.
What make stepper drives?
What supply voltage?
What stepping are the drives set to?
What pitch are ballscrews?
Any gearing between motor and ballscrews?
A pic of the machine would also be good as it could be anything from a micro mill to a 10 tonne giant.
Hood
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sorry i bought the machine from ebay ,this is the link http://cgi.ebay.co.uk/17-x-15-3D-cnc-router-engraving-machines-/160481522086?pt=UK_BOI_Building_Materials_Supplies_Carpentry_Woodwork_ET&hash=item255d71b1a6 ...... Linear bearings, can be adjusted to ensure the elimination of the gap,
precision fit,
high-precision linear Round rails, diameter 0.8-inch,
The use of high-precision new ball screw,
there is no rebound in return; diameter 16 mm; pitch 10 mm;
Aluminum alloy T-slot table, Can help you cut and fixed,
Manufacture than wood table has a huge advantage,
NEMA23 stepper motor current is 3A, the weight 2.2 pounds ,Torque 1.7n.m 245 oz.In.
30v 3A CNC drive,tb6560 , Optical isolation, the maximum 1 / 16 micro-step,Spindle control relay
400w 30v Switching Power Supply
spindle motor is 850w, 4 level speed, 5000--30000RPM, Strong power;
milling tool diameter: 8mm,6mm,3.175mm
Router is the length of 28 inches, width
thanks for your answer
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Ok I have a better idea of the machine now but still need a few answers.
Are you using metric or imperial as default units?
Do you know what the microstepping of the drives are set to?
Is there any gearing between the motors and the ballscrews or are they 1:1
Hood
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Found out a little that may help Hood. Seems there's a couple of versions of the tb6560 driver but anyway the plain vanilla one which I think this is has full, 1/2, 1/4 and 1/16th microstepping.
From the piccys on ebay I'm pretty sure the steppers are direct drive. (helical couplers mind - oops)
Certainly I'm thinking this makes kocher's 2000 steps per unlikely.
Ian
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hi, i do use metric MM as default unit . and i use 4 Axis TB6560AHQ Stepper Motor Driver Controller sorry i dont know what you mean, micostepping of the driver are set to this link of my driver board if it will help .... http://cgi.ebay.co.uk/NEW-4-Axis-TB6560-Stepper-Motor-Driver-Board-Controller-/250687554021?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item3a5e2481e5 ..... and the last question its no any gearing bettween motors and ballscrews . thank you again for your help
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yes stirling you are right the steppers are direct to ( helical couplers) and its tb6560 driver . thanks
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Thanks Ian.
Ok if your drives are set to 1/16 your steps per will be 320
If set to 1/4 then 80
If set to 1/2 then 40
Try the 1/16 setting first, ie put 320 in for steps per unit.
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thank you its ok know its working fine.