EShapeoko 1.2 Assembly: X carriage

For this step, you will need the fourth motor plate, the rear X motor plate with the motor and idlers attached from two steps ago, and the remaining parts in Pack 5.

Take a deep breath...

Front and middle of the X carriage

Rear of the X carriage

Position of V-wheels on the X carriage, as seen from the front (red: fixed X V-wheels; blue: adjustable X V-wheels; yellow: fixed Z V-wheels; purple: adjustable Z V-wheels)

Item	Part Number	Part Description	Count
1	EM-S5-70	M5 70mm cap screw	2
2	EM-S5-90	M5 90mm cap screw	6
3	EM-W5	M5 washer (form A)	48
4	EM-MES	Eccentric spacer	6
5	EM-W5B	M5 washer (form B)	8
6		Assembled V-wheel	12
7	EM-D5-16a	M5 25.4mm spacer (thick)	12
8	EM-D5-04a	M5 6.35mm spacer (thick)	2
9	EM-LMP	Motor plate	1
10	EM-N5	M5 hex nut	8
11		Assembled rear X motor plate	1

Part 5 (shown in orange) is EM-W5B (form B M5 washer), which is thinner (0.75 mm) than the regular washers (0.95 mm). The thinner washers are packed in a separate bag, because they are otherwise hard to tell apart (they are not painted orange in real life). It is important to get the spacing of the X V-wheels exactly right, to match the distance between the Vs of the MakerSlide, so please be careful to use the correct washers.

To assemble this, it's easiest to do one bolt at a time, following the top exploded drawing, and temporarily add a nut to hold those parts together. Do all eight bolts, then lay the plate down, Z V-wheels down, and remove the nuts. Offer the motor plate with the motor and idlers, and lower it on the bolts, guiding them in the correct holes. Finish by adding the eccentric spacers, washers and nuts on the back of the carriage.

Here's what goes on each bolt:

Bolt A (fixed X V-wheels)

70 mm screw • washer • front plate • thin washer (W5B) • V-wheel • washer • washer • 25.4 mm spacer • thin washer (W5B) • washer • V-wheel • washer • rear plate • washer • nut;

Bolt B (adjustable X V-wheels)

90 mm screw • washer • eccentric spacer • front plate • thin washer (W5B) • V-wheel • washer • washer • 25.4 mm spacer • thin washer (W5B) • washer • V-wheel • washer • rear plate • eccentric spacer • washer • nut;

Bolt C (fixed Z V-wheels)

90 mm screw • washer • V-wheel • washer • 6.35 mm spacer • washer • front plate • washer • 25.4 mm spacer • 25.4 mm spacer • washer • rear plate • washer • nut;

Bolt D (adjustable Z V-wheels)

90 mm screw • washer • V-wheel • washer • washer • eccentric spacer • front plate • washer • 25.4 mm spacer • 25.4 mm spacer • washer • rear plate • washer • nut.

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