oniontalker wrote:I already have the Acme screw, Nema 23 and a stock shapeoko2, do I need anything that was included with the direct drive kit?
Sorry for the confusion, seems I misread earlier. You will not need any parts from the direct drive kit.
To simplify it, just think of it as if you were ordering from scratch, then you would need the following:
NEMA 23 stepper
Belt Drive NEMA 23 Z-Axis Kit
The only other parts needed that are not in the belt drive kit is a Z-Axis shim and the flanged bearing. Both of these items you should have already from your stock kit and the acme upgrade.
If starting fresh from stock and installing these upgrades you would complete the following steps from each upgrade:
Acme - 1.
If you haven't already done so, tap the bottom of the Z axis maker slide to accept the M5 screws
Acme - 2.
Install the included flanged bearing into the lower rounded bearing plate. Be sure to press the bearing evenly on all sides until the flange sits flat on the plate all around.
Acme - 3.
Place 1 M5 flat washer on each of 2 included M5x16 SHCS
Acme - 4
. Attach the bottom plate with the flange of the bearing facing up to the makerslide by placing one of the included shims plates between bearing plate and the makerslide. Screw the assembly together using the two M5x16 SHCS from step 2
Acme - 6. Install the flanged bearing included with the original SO2 kit into one of the original Z axis top plates
Acme - 7. Place 1 M5 flat washer on each of 2 included M5x16 SHCS
Acme - 8. Slide the top plate and bearing over the top of the ACME screw with the flange of the bearing facing down
Acme - 9. Attach the top plate to the makerslide by placing the second of the included shim plates between the plate and the makerslide. Screw the assembly together using the two M5x16 SHCS from step 6
Belt Drive - 1.
Attach Motor to Plate with aluminum standoffs. Don't forget to attach the pulley first!
Belt Drive - 2.
Re-use the bearing from your original z-axis, and insert it into the belt drive NEMA 23 plate.
Acme - 5.
Install the lead screw with the delrin nut attached into the lower bearing
Belt Drive - 3.
Install the new bearing plate onto the top of the z-axis makerslide. Don't forget the shim.
Belt Drive - 4.
Loop the belt around the motor and the screw pulleys and slide the screw pulley on to the screw shaft.
Belt Drive - 5.
Edit your control software settings and cut your Z steps/per in half! (ex: old 188.947, new 94.4735)
Belt Drive - 6.
Recalibrate your max Z speed. It should be able to achieve twice the speed.