I think I'm Close
Wells Index 700 mill "old bandit control" 1978 vintage( DIY io board)
nema 42 stepper motors 1.8deg
3 Gecko 212 running 7Amp wired half winding 10x microstep
running from mother board parallel port
45 volt power supply
200 * 2.5/1 pulley ratio 5 tpi ballscrews = 2500 * 10 microstep = 25000
INPUT_SCALE
Dell 566 celron pc
Latency of 22000
using DIRHOLD=2
latency + 4.5us gecko hold time
22000 + 6000 = 28000 BASE_PERIOD
1e9 / 28000 = 35714 / 2 = 17857 / 25000 = .714 ips or 42 ipm
1.When I rapid my Z axis (the only one i've tested) It runs but sometimes the
stepper motor does not start and just growls could this be max accell?
Would I be better off using full winding and cutting my amperage down? motors
and power supply came with the machine, factory
Old sigma motors with no specs and cant seem to come up with them, I have one
dana motor on the Y axis that has a 7.5 amp rating
MAX_ACCELERATION = 20.0
2.I would like to tap using floating tap holders but when I reverse the spindle
the signal changes so fast that the motor relay doesn't have time to drop out
be it interlock or something is there SPINDLE_ON_WAIT ? like the older emc or a
better way to do this?
3.Does anyone have advise on using the 5x microstep verses 10x to up my IPM.
here is part of my .ini
Thanks
# Third axis
[AXIS_2]
TYPE = LINEAR
HOME = 0.0
STEPGEN_DIRHOLD = 2
MAX_VELOCITY = .65
MAX_ACCELERATION = 20.0
STEPGEN_MAXVEL = 1.4
STEPGEN_MAXACCEL = 21.0
BACKLASH = 0.000
INPUT_SCALE = 25000
OUTPUT_SCALE = 1.000
MIN_LIMIT = -7.0
MAX_LIMIT = 1.0
FERROR = 0.050
MIN_FERROR = 0.010
HOME_OFFSET = 0.0
HOME_SEARCH_VEL = 0.0
HOME_LATCH_VEL = 0.0
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = NO
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