STPDRV-2 Card & 3D Printed Components
STPDRV-2 Card with USB
3D Printed Parts
Click here for details of the BFF
Motorised Trim Wheel
The card and 3D printed parts can be
ordered from the
Order Page here.
The stepper driver card for the motorised
trim wheel is available for GBP84.50 + P&P
Included in the price is a USB cable and the pluggable screw terminals.
3D Printed Parts
The set of 3D printed parts for the MTW is
available for GBP94.50 + P&P
The set includes all the printed components
required for the build, fasteners for the assembly and a
12 mm clamp collar to secure the wheel hub to the stepper
motor shaft (fits in hub).
The parts are printed in Zortrax Z-HIPS
material and have a matt black finish.
The wheel hub and the position feedback pot
gear come finish drilled to suit the stepper motor and pot
shaft sizes (5mm & 6.35mm respectively).
If you wish to try printing your own then .STL
files are available on the main trim wheel page
There is over 20 hours of printing time in
the set, so orders for the 3D parts will take a little
longer to deliver - approx 1 to 2 weeks.
Note also that the surface finish on the
parts is typical of 3D printed parts.
To complete the project you will need to
purchase the remaining parts yourself. They are:
feedback potentiometer: Vishay Spectrol Model 534 (10
turn, 10KOhm, Linear)
Any good quality 9g micro-servo, for example:
Check it can handle the 0.8ms to 2.2ms pulse length
range output by the STPDRV-1 card - most can do this.
Extension cable for 9g servo - if you
wish to mount the STPDRV-1 card a bit further away from
24V 1 Amp regulated DC supply for the
stepper driver card.
5V 0.5 to 1 Amp regulated supply for the
indicator servo drive.
Single Pole Double Throw electric trim
button (if required)
3 Core small signal cable for the
position feedback pot and trim button wiring (approx 1m
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