Aaron,
Other responders have indicated they needed more infomation.
If you can fill in the blanks and confirm or correct assumptions then
someone has a real chance of providing
concrete help. It won't be me as I'm a servo person. Sorry.
OK, lets gather some more information here:
Stated or implied. 1.5m x 1.5 m gantry. One stepper motor per axis.
I assume the gantry is the X axis and the Y which lags is mounted on
the X.
How much weight are you driving per axis?
How do you drive the axes; eg. gears, timing belts, etc and what are
the ratios?
Another way to put this is one step moves you how far?
Step rate under normal conditions.
This info is for the stepper experts. :-)
Copied off a vendor site.
Stepper motor:
The FL60STH86-3008BF is a High Torque three stack Nema 23, 1.8 degree
hybrid stepper motor with a holding torque of 3Nm (425 Oz-in)
Driver:
Supply voltage up to +50VDC, current output
up to 4.2A peak
Optically isolated input signals, pulse
frequency up to 400 KHz
Automatic idle-current reduction
3-state current control for less motor heating
15 selectable resolutions in decimal and
binary
Suitable for 4,6,8 lead motors
Stepping on upward or downward pulse edge
(selectable)
DIP switch current settingvalue
4.1 Connector P1 configuration
Signal Functions
PUL+(+5V)
PUL- (PUL)
Pulse signal: in single pulse(pulse/direction) mode, this input
represents pulse signal,
effective for each upward – rising edge; in double pulse mode (pulse/
pulse) this input
represents clockwise(CW)pulse. For reliable response, pulse width
should be longer
than 1.5μs.
DIR+ (+5V)
DIR- (DIR)
Direction signal: in single-pulse mode, this signal has low/high
voltage levels,
representing two directions of motor rotation; in double-pulse mode
(set by inside
jumper JMP1), this signal is counter-clock (CCW) pulse, effective on
each rising edge.
For reliable motion response, direction signal should be sent to
driver 2μs before the
first pulse in the reverse motion direction.
ENA+ (+5V)
ENA- (ENA) Enable signal: this signal is used for enable/disable,
high level for enabling driver and low level for disabling driver.
Usually left unconnected(enabled).
HTH
Dave
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