Evil Mad Scientist AxiDraw MiniKit Manual de usuario
Assembly Guide
Model 2540
https://emsl.us/924
AxiDraw
MiniKit
Assembly guide v 1.0
Last updated: December 13, 2019
About this guide and this kit
This is the assembly guide for the AxiDraw MiniKit, a spe-
cial compact “DIY kit” version of the AxiDraw writing and
drawing machine.
It covers the steps needed to build the AxiDraw MiniKit,
from opening the box to a working machine. This guide
also covers model-specific usage information about the
MiniKit, as a supplement to the main AxiDraw User Guide.
This guide is provided as a PDF download, with the intent
that it can be viewed on-screen (desktop, laptop, tablet or
phone) while you assemble your kit. The latest version is
available at: wiki.evilmadscientist.com/minikit
Getting help
If you should need any kind of assistance while building
your AxiDraw MiniKit, please do not hesitate to contact
us: shop.evilmadscientist.com/contact
Whether you need help with an assembly step, parts sup-
port, assistance troubleshooting an issue, or reassurance
that you’re building something correctly, please feel wel-
come to drop us a line. We are here to help.
Software
Towards the end of this guide, there is an assembly step
that requires that you have AxiDraw software installed on
your computer. To get a head start, visit axidraw.com/sw
Warning: Small parts
This kit is not a toy. It contains a great number of small
parts that should be kept out of reach of children.
Warning: Sharp edges and points
While the finished kit should not present any excessively
sharp edges, components within this kit – particularly the
aluminum extrusions – may have edges and points that are
razor sharp. Exercise appropriate care when handling these
parts, and keep out of the reach of children.
After assembly
After assembling your AxiDraw MiniKit, you will want to
review the usage information in the AxiDraw user guide,
available at: axidraw.com/guide
More about AxiDraw and MiniKit
To learn more about AxiDraw in general please visit its main
site: AxiDraw.com
To learn more about the AxiDraw MiniKit, please visit its
product page: emsl.us/924
The main documentation site for AxiDraw can be found on
our wiki, at axidraw.com/docs
Copyright
This guide © 2019 Windell H. Oskay, Evil Mad Science LLC
2
Table of Contents
About this guide and this kit........................ 2
Getting help................................................... 2
Software......................................................... 2
Warning: Small parts..................................... 2
Warning: Sharp edges and points ............... 2
After assembly .............................................. 2
More about AxiDraw and MiniKit ............... 2
Part 1: Tools .......................................................5
1.1 Required tools .......................................... 6
1.2 Included tools .......................................... 7
Part 2: The Base ................................................8
2.1 Parts in the base assembly ..................... 9
2.2 Add pulleys to motors ........................... 10
2.3 X Endstops............................................... 12
2.4 Mount the motors.................................. 14
2.5 Ballast and motor wire........................... 16
2.6 Base Endcap............................................ 18
2.7 EBB Support............................................ 19
2.8 Mounting the EBB.................................. 20
Part 3: The X Carriage......................................23
3.1 Parts in the X Carriage Assembly.......... 24
3.2 Install the Y Endstop .............................. 25
3.3 Spacers, shims, and washers ................. 26
3.4 X Carriage Idler Pulleys......................... 27
3.5 Y-Wheel Supports................................... 28
3.6 Preset Y Eccentrics................................ 31
3.7 Front X Wheels........................................ 32
3.8 Rear X Wheels......................................... 34
3.9 Tuning the X Carriage ............................ 36
Part 4: Y, Belt, and Z.........................................38
4.1 Parts in the Y, Belt, and Z assemblies ... 39
4.2 Tensioning block..................................... 40
4.3 Y Carriage Idler Pulley........................... 41
4.4 Y Carriage Travel Limits......................... 42
4.5 Y Endcap and pre-threading................. 43
4.6 Fixed Y Wheels ....................................... 44
4.7 Aside: AxiDraw kinematics.................... 45
4.8 Belt Staging ............................................ 46
4.9 Add the Y Carriage ................................ 48
4.10 Belt tensioning...................................... 49
4.11 Trim the belt ends.................................. 53
4.12 Tuning the Y Carriage........................... 54
4.13 Adding the Z Slide................................. 56
Part 5: Servo and wiring...................................58
5.1 Parts used in wiring................................. 59
5.2 Stepper wiring 1 ...................................... 60 3
5.3 Stepper wiring 2 ..................................... 61
5.4 Cable guide wrapping............................ 62
5.5 Mounting the servo................................ 64
5.6 Mount the cable guide .......................... 65
5.7 Complete the wiring .............................. 67
5.8 Servo horn............................................... 71
5.9 Servo calibration .................................... 72
Part 6: Using AxiDraw MiniKit ........................75
6.1 Accessories ............................................. 76
6.2 The AxiDraw User Guide ...................... 77
6.3 Special considerations for MiniKit ....... 77
6.3.1 Pause button.................................................77
6.3.2 Home corner ...............................................77
6.3.3 Travel limits ..................................................78
6.3.4 Pen weight ...................................................78
6.3.4 Rubber bands...............................................78
6.3.5 Speed and acceleration..............................78
4
Part 1: Tools 5
1.1 Required tools
To assemble the AxiDraw MiniKit, you will need certain
general-purpose tools that are not included with the kit.
These required tools are:
1. Either Ascissors or Bwire clippers
2. A Phillips #1 size screwdriver, C
3. A Phillips #0 size screwdriver, D
4. A small flat head screwdriver, E
Blade width: about 2 mm or 5/64”
And, recommended but not required:
• Miniature pliers, F
• A small hobby knife, G
• A small adjustable wrench (not shown)
A
B
C
D
E
F
G
6
1.2 Included tools
Several specific tools are included with the kit.
We will refer to these, and other parts included with the kit, by part numbers.
The included tools are:
#1, 15 cm / 6 inch ruler
#2, T20-size Torx L-wrench
#3, 2.0 mm ball-end hex L-wrench
#4, 2.5 mm hex L-wrench
#5, 10 mm low-profile wrench
#6, 8 mm low-profile wrench
#7, 7 mm low-profile wrench
You can distinguish the L-wrenches quickly, since only #2 is a Torx (star-shaped)
wrench, and only the 2 mm wrench, #3, has the ball end. The three low-profile
wrenches are very similar in appearance; you might want to label them with a marker.
Most of the wrenches are only needed during assembly, but #3, the ball-end wrench,
will continue to be useful in regular everyday operation of the AxiDraw MiniKit.
#1
#2
#3
#4
#5
#6
#7
7
Part 2: The Base 8
#8, MiniKit Base Rail (1)
#9, Stepper Motor (2)
#10, Timing Belt Pulley (2)
#11, M4 Square Nut (5)
#12, X Endstop (2)
#13, M4×16 Button-head Screw (4)
#14, Aluminum Spacers (8)
#15, M3×16 Button-head Screw (12)
2.1 Parts in the base assembly
#9
#10
#20 #21
#22 #23
#24
#25
#26
#8
#11 #12
#13 #14 #15
#16 #17
#18
#19
#16, Rail Endcap (2)
#17, M4×8 Torx Tapping Screw (6)
#18, Ballast Weight (1)
#19, Nylon Loop Clamp (2)
#20, Motor Wire Harness, Long (1)
#21, M4×20 Torx Tapping Screw (2)
#22, EBB Support (1)
#23, EBB Driver Board (1)
#24, White Nylon Washer (4)
#25, Black Nylon Spacers (4)
#26, M3 Kep Nut (4)
Some quantities will be used in future
steps as well.
9
8 mm
2.2 Add pulleys to motors
1. Locate the flat face (A) on the shafts of the stepper motors, #9.
2. Observe that the timing belt pulleys, part #10, each have two set
screws (B). The wrench for these screws is the 2 mm ball-end hex
wrench (#3).
3. Slide a pulley onto a motor shaft, “teeth” up. You may need to
loosen the set screws to do so.
4. Position the pulley with a set screw in front of the flat face, and
its bottom 8 mm above the uppermost part of the motor face (C).
You can use a ruler to measure the gap or – better – borrow the
long 8 mm hex stando (#35) from a future step (“3.5 Y-Wheel
Supports” on page 28) and use it as a spacer (D).
A
CD
B
(Continues on next page)
10
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