OHAI: Open Hardware Assembly Instructions

1 Gather tools and components for assembly

Components

X Motor Mount with inserts
X End Plate
Double Bearing Holder
Motor
Motor Pulley
M3x12 SHCS
M3 Washer
M5x10 SHCS
M5 Washer
Zip ties
Limit switches
XZ Extension

Tools

1.3 mm Allen Driver
1.5 mm Allen Driver
2.5 mm Allen Driver
Pulley Fixture
Side cutters

Tools

2 Install the Double Bearing Holder

Install the Double Bearing Holder onto the X End Plate using 4 M3x12 SHCS with washers.

Note the orientation of the double bearing holder.

Leave the Bearing Holder loose at this point.

X End plate and double bearing

Double Bearing holder installed, note orientation of double bearing holder

3 Mount the Motor and Pulley

Install pulley onto motor shaft using the fixture or approximately 4 mm from the bottom, making sure one of the set screws in aligned with the flat on the motor shaft.

Install motor onto X Motor Mount using 4 M3x12 SHCS with M3 washers, making sure that the motor is biased toward the bottom as shown.

Note Orientation of motor wires.

Make sure both set screws are tight.

Note, if you tighten the 4 motor screws and the motor can be moved around replace the 4 M3 washers with the thicker, larger M3 washers as shown.

Motor and Motor mount

Pulley set

Motor installed,note orientation of motor wires

4 Attach Motor Mount with motor to X End Plate

Using 3 M5x10 SHCS with M5 washers, attach motor mount with motor to X End Plate, note orientation.

Parts

Motor mount attached, note orientation

Another view, note orientation

5 Add XZ extension

Connect limit switches to XZ extension as shown, note orientation of wires.

Attach XZ extension to the assembly using 4x M2x10 SHCS with M2 washers as shown.

Zip tie the extension to the motor mount through the mounting point as shown, clip the excess off the zip ties

Place the motor wire into the plastic insulation with the extension and zip tie as shown

Components

Limit swicth wire orientation

Both limit switches

Z limit switch mounted, note orientation

X limit switch mounted, note orientation

First zip tie

Second zip tie

Complete