V-King MK2 User manual

V-King 3D Printer MK2
Assembly Manual
For further questions:
Facebook Group: Viking 3D Printers - Builders Club
Discord server
For comments, input and suggestions for changes in the
documentation - feel free to add a comment in this document.

V-King MK2
The V-King MK2 was released in May 2020. All parts changed from MK1 are colored yellow in the Fusion 360 model .
The changes done in MK2 are:
● Simplified worm gear and rod brackets, easier to assemble
● All X, Y, and Z Idler buddies adjusted to accommodate better (larger) idlers from Gates/Mellow ( Video and Stream )
● Improved and adjusted X carrier
1. Introduction
a. printing the parts (choosing filament, settings)
b. how to get help (Discord, FB group)
c. required hardware (with images)
d. Required tools
e. How to look at the drawings in Fusion 360
2. Sourcing Guide
3. Base Frame Assembly
a. Corner part of the frame
b. XY motors with brackets
c. XY idler corner pulleys
4. X-Axis Assembly
a. XY Forks
b. X Idlers
c. X Carrier
d. X Carrier - cable loom bracket
e. X Carrier - hotend and fans
f. Y Carriers
g. X-axis assembly
5. Mounting and tensioning the X/Y belts
a. How to add belts
b. Tensioning
6. Z Drive Assembly
a. Z carriers
b. Bed frame, bed support
c. Bed idlers
d. Belt anchors (top)
e. Worm gear, rod, rod buddy
f. Add the Z belts
7. Extruder
a. Bowden tube
b. Cable loom
8. Electronics
a. Mount the components
b. Wiring, cable management
9. Firmware
10. Panels
a. Bottom panels
11. Get started printing
a. Tune extruder
b. Bed leveling
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Base Frame Assembly
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Naming of the corners
Overview of additional placed T-nuts
Lower V slots
A-B facing out: 3 for the gear buddy and tensioner
A-B facing up: 2 for the gear buddy
A-B facing in: 3 for gear buddy and tensioner
D-C facing out: 3 for the gear buddy and tensioner
D-C facing up: 2 for the gear buddy
D-C facing in: 3 for gear buddy and tensioner
Upper V slots
A-B facing up: 4 for extruder and cable conduit,
A-B facing down: 2 for Z belt
D-C facing out: 4 for belt tensioners
D-C facing down: 2 for Z belt
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Corner part of the frame
Hardware parts
12 500 mm V-slot Rails with M5 threaded/tapped ends
8 Corner Cubes
24 M5 x 8mm Countersunk Bolts
20 Cast Corner Brackets, large 20mm x 28mm x 28mm
40 M5 x 10 mm Button Head Screws
40 M5 Washers
68 M5 Tee Nuts
Printed parts
none
Videos
Fusion 360 animation - Base Frame Assembly
Live Build - Main Frame - The Corners
Step by step
1. Make sure you’re building on a completely flat surface.
2. Start with loosely fastening the corner brackets with the button head screws
and washers.
3. Add the right amount of tee nuts before mounting the corner cubes, see
separate overview.
4. Add the corner cubes using the countersunk screws. Tighten the corner cubes
first - do not use too much force when tightening.
5. Tighten the corner bracket screws carefully.
6. In real life it is almost impossible to square the frame TRUE 90 degrees in 3
dimensions. Do your best. What is important is that the Y-axis is parallel to each
other, and that the X-axis is adjusted 90 degrees to the Y axis.
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XY motor corner brackets
The XY motors are located in corners A and B.
Hardware parts
4 M5 x 10 mm Button Head Screws
4 M5 Washers
6 M3 x 8 mm Button Head Screws
6 M3 Washers
2 Nema 17 Stepper Motors 17HS4401S
2 GT2 Motor Pulleys with 20 Teeth
Printed parts
2 XY Motor Corner Bracket_2x_SN_BN_100%.stl
Videos
Fusion 360 animation - XY Gantry Assembly
Live build (MK1) - Motor pulleys
Step by step
1. Mount the brackets with the M5 screws and washers
2. Mount the motors with the M3 screws and washers.
3. The A motor pulley mounts with the teeth up. The top of the
pulley should be 23 mm from the top of the motor housing.
4.
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5. The B motor pulley mounts with the teeth down. The pulley
should be mounted 3.5 mm from the bottom flange to the top
of the motor housing.
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XY corner idlers
The XY corner idlers are located in the corners C and D.
Hardware parts
4 M5 x 10 mm Button Head Screws
8 M5 Washers
2 M5 x 35 mm Button Head Screws
2 M5 x Lock nuts
4 M5 washers
6 M5 precision shims, 5 mm ID x 6 mm OD x 1 mm
4 GT2 Idlers with 20 teeth
Lithium based lubricating grease
Printed parts
2 XY Corner Idler Buddy_2x_SN_BN_100%.stl
Videos
Fusion 360 animation - XY Gantry Assembly
Live build - Corner Idler Bracket Assembly
Step by step
1. Mount the brackets with the specified screws and washers
2. Lube up the pulleys with the lithium grease before mounting.
3. Mount the washers on the outside, and the shims on each side of the
pulleys. If the opening in the buddy is tight, the upper shim can be dropped.
4. Attach the lock nut on top. The lock nut should not be pressing against the
buddy. Leave a small gap between them.
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X-Axis Assembly
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XY Forks
2 Y Carrier forks, 1 X Carrier fork, 4 Z Carrier forks
Hardware parts
Wheels:
3 Solid V Wheels (with included shims)
6 Ball Bearings 625 RS 5x16x5
6 M5 x 6,5 mm x 1 mm Precision Shims
Forks:
3 M5 x 20 mm Hex Bolts
3 M5 x 25 mm Button Head Screws
3 M5 Lock Nuts
3 M5 Nuts
Printed parts
3 XYZ Carrier Fork_7x_SN_BO.stl
3 XYZ ThumbScrew_7x_SB_BN.stl
Step by step
1. Mount the bearings in the wheels, with the included shim between
the bearings.
2. Insert the hex head screw into the fork. Make sure the head is
properly aligned.
3. Place the two Y carrier forks on top of the A-D and B-C top rails.
4. Mount the wheels in the fork, with one precision shim between the
bearing and the fork on each side Use the M5 x 25 mm Button
Head Screw for the wheel.
5. Assemble the last fork for the X carrier, and set it aside.
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