Deagostini 3D Printer idbox Guida utente

Tipo
Guida utente
Pack 12
Compatible with
Windows 7 & 8
Mac OS X
Anything you can
imagine, you
can make!
3D PRINTER
BUILD YOUR OWN
3D technology is
now available for
you at home!
Stage 51: Insert the extruder drive shaft into
the U-shaped extruder assembly
Stage 52: Put together the extruder arm
and drive assembly
Stage 53: Finishing off the extruder
assembly
Stage 54: Attach the extruder and the spool
holder to the housing
Stage 55: Final steps for completion
of your idbox
WARNING: Not suitable for children under the
age of 14. This product is not a toy and is not
designed or intended for use in play. Items
may vary from those shown.
The next ve detailed and easy-to-follow stages of construction for your 3D printer.
Assembly Guide 323-335
User Guide 3: Using your idbox
In the third part of the User Guide, you test the extruder and load the idbox with
lament. You can then try, if you want, a test print. There is an opportunity to learn
much more about Repetier-Host – the program you use to control the printer – and
nally some hints and tips on using the idbox. Plus some important corrections.
User Guide 311-322
CONTENTS PACK 12
3D PRINTER
BUILD YOUR OWN
TM
www.model-space.com
326-328
329-331
332-333
334-335
323-325
All rights reserved © 2016
Published in the UK by
De Agostini UK Ltd,
Battersea Studios 2,
82 Silverthorne Road,
Battersea, London SW8 3HE
Published in the USA by
De Agostini Publishing USA, Inc.,
121 E. Calhoun Street,
Woodstock, IL 60098
A tablet case STL le is provided on the ModelSpace website for you to use
as a test print. Go to the download page at www.model-space.com and
download the le for the object, TabletCase_idbox.stl.
PB 311
User Guide User Guide
User Guide Section 3: Using your idbox
Test extrusion and set up the lament
Straighten out a length of about 10cm from the end of
some lament using your ngers.
Check that the lament on the spool is
fed upwards into the extruder assembly
from below, as shown.
Filament cannot
be fed properly
into the extruder assembly
if it comes off the spool from
the top, as shown here.
Incorrect
You can now nish off the test of your idbox by loading the lament and sending it through the extruder to the printer head to see if the
extruder works. You can then try out a test print. After that, there is a guide to how to get the best from Repetier – the powerful program
that controls the printer – and a section on troubleshooting, plus some important extra information that claries some points in User
Guide 2. Be sure to follow the order of operations set out below, before you proceed with the instructions in User Guide 3.
Order of operations
Before you attempt to test the extruder and output a test print, make sure you have nished constructing the idbox as set out in
Assembly Guide Stage 55, being sure that you have performed all the instruction on pages 255 to 256 of User Guide 1 in Pack 10 and
all the instructions on pages 283 to 292 of User Guide 2 in Pack 11 before you attach the bottom or base covers. Read the Corrections
on page 321 before you attempt the instructions on pages 290 to 292 of User Guide 2.
12
Insert the end of the lament into the
round hole (ringed in red, above) in the
base of the extruder assembly drive unit.
Pull the arm back, which allows you to
pass the lament between the arm and the
drive roller, until about 5cm protrudes from
the tube tting.
Insert the lament into the lament guide
tube. Insert the end of the tube all the
way into the tube tting on the extruder
assembly, until you feel some resistance.
Insert
Plug
tube into
fitting
5cm approx
345
Before you test the lament extrusion and perform your rst test
print, be sure that you have followed the instructions in User
Guides 1 and 2 and are familiar with how to set up and use
Repetier and the slicing software to control the idbox.
CAUTION!
CAUTION!
312 313
User Guide User Guide
When the head has reached operating temperature, insert the lament that
has come out of the guide tube into the tube tting. As you push down, the
lament should melt and come out of the nozzle.
Push down, until the lament protruding
from the guide tube has entered the tube
joint. Then, push the guide tube until it is
all the way into the tube joint.
Hook the tension spring back over the
cap bolt. If this is not done, the lament
will not be forced into the guide tube by
the drive roller.
With the printer
connected, select the
Manual Control tab
(Windows) or the Print
Panel tab (MacOS)
and set the table height
to Z=100.00. Enter
200 in the temperature
eld (Windows, above,
MacOS, left) and turn
the heat on.
When test extruding PLA, set
the temperature to 200 degrees C. For ABS,
set the temperature to 240 degrees C.
59
Click on the extrude
arrow on the Manual
Control tab (Windows,
shown left), or on
Extrude on the Print
Panel tab (MacOS). The
extruder motor should
run and lament should
be extruded from the
nozzle, dropping onto the
modelling table below.
The idbox is ready for
output. If you do not
want to output just now,
remove the lament. For
how to do this, see Steps
8 and 9 on page 315.
Filament
comes out
If lament does not come out
when it is supposed to, check
that the guide tube is rmly
inserted into the tube joints.
Unhook the tension spring from the cap
bolt, so that the lament can be fed easily
through the guide tube.
Feed the lament through the guide tube,
until there is about 10cm sticking out from
the head end of the guide tube.
Unhook
10cm approx.
protruding When using PLA,
remove the fan draught blocking strip
(see Assembly Guide Stage 29).
Leave it in if using ABS.
7
6
109
8
11 12 13
312 313
User Guide User Guide
Outputting from the idbox
Click on the Object Placement tab (Windows and MacOS) in
Repetier, then open the TabletCase_idbox.stl le by clicking on the
Add Object icon (Windows) or the Add STL le button (MacOS). You
need to rotate the object by 180 degrees around the X-axis, so, in
Windows, click the Rotate Object icon and enter 180 in X:, then click
on the Center Object icon. In MacOS, enter 180 in Rotate: X and
then click on the Center Object button.
Now switch to the Slicer tab (Windows and MacOS). If you have
worked through User Guides 1 and 2, you will have set, or will know
how to set, the appropriate settings needed to output using PLA on
the idbox. Select these options now (see Step 2).
3
1
2
Printing your rst object
It’s time to try printing something from the idbox. A tablet case STL le is provided on the website. Go to the download
page at www.model-space.com and download the le for the object (TabletCase_idbox.stl).
Slic3r (MacOS)
Make sure that Slic3r is selected, then
choose the appropriate settings from
the Print Settings:, Printer Settings: and
Extruder 1: drop-down lists.
You also need to tweak the Print
Settings. Click on Congure, and under
the Print Settings tab, click on the
Support material option. Put a tick in the
Generate support material checkbox.
Save the changes, then close the
conguration window.
When you have adjusted the settings
appropriately on the Slicer tab, click on Slice
with CuraEngine (Windows), or Slice with
Slic3r (MacOS). When the G-code has been
generated, you are taken to the Print Preview
tab (Windows). Press Print (in Windows), or
the Run button (in MacOS). The head and the
modelling table will move to their start positions
and the head will begin heating up. When the
head has reached operating temperature,
modelling starts. The object being output here
will take approximately one hour to print.
CuraEngine (Windows)
Make sure that CuraEngine is selected as the Slicer, then, under Print Settings,
choose the appropriate settings for Print Conguration and Quality. Under
Adhesion Type, choose Raft, and under Support Type, choose Touching Bed.
Under Filament Settings, choose the appropriate option for Extruder 1.
If you want to
learn more about
CuraEngine slicer,
hover over the Adhesion
Type and Support Type
drop-down menus in the
Print Settings section of
CuraEngine on the Slicer
tab in Windows: tool
tips appear with useful
information.
If you want to learn more
about using Slic3r, look at
the Slic3r online manual at
http://manual.slic3r.org/
Before you press the
Print button on the Print
preview tab (Windows),
or the Run button on
the toolbar (MacOS),
make sure the lament
is loaded and ready
(see pages 311 to 312)
and that the modelling
table is covered with a
suitable layer such as
BuildTak or similar, and
that the table and its
covering layer are held
in place using the clips
supplied with Stage 55.
314 315
User Guide User Guide
Retrieve the printed object
Once the printer has nished, click the All Axes Home icon (shown above left,
outlined in red) on the Manual Control tab (in Windows), or the Home All button
(shown above right, outlined in red) on the Print Panel tab (in MacOS).
First out of the nozzle is the skirt around the object. Make sure
it is adhering to the modelling surface and is evenly laid down.
After the skirt is laid
down, check that
the rst part of the
model is even and
is adhering properly.
During printing,
the time remaining
is displayed at
the top of the
Manual Control tab
(Windows) or the top
of the Print Panel
tab (MacOS).
If the distance
between the nozzle
and the modelling
surface is too small, the nozzle
will push into the modelling
surface and damage it, or the
nozzle may clog. If this happens,
click on the Emergency Stop
button and then press the All
Axes Home icon on the Manual
Control tab (Windows) or the
Home All button on the Print
Panel tab (MacOS).
If the skirt looks even
and the lament
is adhering to the
modelling surface, all should
go well. If it does not adhere
or looks uneven, it could be
that the distance and level
of the modelling surface in
relation to the nozzle needs
readjusting to get the proper
clearance.
CAUTION!
4
5Keep an eye on the spool
holding the lament, to check
that the lament does not get
tangled while being fed into
the extruder.
6
1
314 315
User Guide User Guide
While the nozzle temperature is still
high, carefully wipe any lament from the
nozzle, but remember − the nozzle and
head are very hot. Then, push down the
black rubber part of the tube tting, so you
can remove the guide tube easily.
Trim back the end of the lament near where
it entered the head block tube tting. Use
scissors if the lament is thin, or nippers if it
is thick or difcult to cut. Remove the unused
lament from the guide tube, winding it back
onto the spool.
Remove the clips that are holding the
modelling table in place and carefully
remove the table from the housing. Be
careful not to hit the housing with the
table or bump the model against the
housing, as this may distort it.
When the
nozzle
is hot, take great
care not to burn
yourself. Do not
try to forcibly
remove lament
from the nozzle
when it has
cooled, as you
might unscrew
it, damaging it or
other parts of the
head assembly.
Cut the
lament
shorter,
so its end does
not spread. If it
does, this might
make it difcult
to use later.
Unplug the USB
cable connecting
your computer
to the idbox, and
unplug the power
supply to the idbox.
Do not
remove
the object when
the modelling table
is still on the table
base, as this might
put the assembly
out of alignment.
Carefully peel the object from the
modelling table, gently bending the table,
if necessary, to help get it off.
Do not
apply
too much force,
but you can
bend the table
to get the model
unstuck. If
you are using
BuildTak (which
is self adhesive
and is stuck to
the modelling
table), it will ex.
2 3
Click the
Disconnect button
in Repetier.
4
Unplug
Unplug
5
67
316 317
User Guide User Guide
Get to know Repetier-Host
Repetier-Host is the software that runs on your computer to control the idbox. Download and installation of this software was explained
in User Guide 1 (pages 255-256, Pack 10). Below, you can nd out what this program can do. Here is a guide to the Repetier screen for
Windows computers (below), and for MacOS computers (at the bottom of the page). The different colours used are simply for clarity.
A File
See 1 File
B Edit
Select menu options such as
Cut, Copy, Paste and Undo
C Printer
Printer settings and suchlike
D Window
Change the size of the window
E Temperature
See 4 Printer
F Help
See 6 Help
G Connect
See 7 Connect
H Load G-code
Load G-Code from a le
I Run
Run a print job
J Kill job
Exit the print
K SD card
Read data from SD card
L Toggle log
See 9 Toggle Log
M Shows lament
See 10 Hide/Show Filament
N Shows travel
See 11 Hide/Show Travel
O Printer settings
See 12 Printer Settings
P Preferences
Open software preferences
panel
Q Emergency Stop
See 14 Emergency Stop
R Object Placement
See 24 Object Placement
S Slicer
See 25 Slicer
T G-Code
Show G-Code
U Print Panel
See 27 Manual Control
A
G
BC D EF
MacOS
1 File
Use to import STL or
G-Code les.
2 View
Switch the viewpoint and t
objects to available space.
3 Cong(uration)
Printer settings and program
preferences.
4 Printer
Information about the printer
and printing jobs.
5 Tools
Belt and leadscrew calculator
and bed height map.
6 Help
Info about the software and
links to useful web pages.
7 Connect
Click to connect to the printer;
changes to ‘Disconnect’ when
printer is connected.
8 Load
Import les into Repetier.
9 Toggle Log
Turn on/off display of
information at bottom
of screen.
10 Hide/Show Filament
Disables/enables visualisation
of lament.
11 Hide/Show Travel
Disables/enables visualisation
of travel.
12 Printer Settings
Opens the Printer Settings
window.
13 Easy Mode
Icon goes green when in
Easy Mode, red when not.
14 Emergency Stop
If any problem occurs
during printing, click on
this button immediately.
15 Rotate
Click and drag on screen to
rotate view.
16 Move viewpoint
Click and drag on screen to
move view across screen.
17 Move Object
Click and drag on object to
move it.
18 Zoom
Click and drag on screen to
enlarge/reduce view.
19 Zoom Objects to t
Fits object(s) to available
screen space.
20 Isometric View
See display viewed from
an angle.
21 Front View
See display, viewed from side.
22 Top View
See display, viewed from top.
23 Use parallel projection
See display in parallel
projection.
24 Object Placement
Add, position, scale, rotate
objects and more.
25 Slicer
Select settings for slicer and
generate G-Code.
26 Print Preview
Print button, printing stats.
27 Manual Control
Manually control movement in
all axes, set head temperature
and extrude lament.
15
3
724
2
12 13 14
25 26 27
O
H
IJKLMN P Q
RSTU
145
8 9 10 11
16
17
18
19
20
21
22
23
Windows
316 317
User Guide User Guide
Open an STL le and move the object
Designs that have been created in 3D modelling software, such as AUTODESK 123D, can be printed out from a 3D printer.
The design has to be saved as an STL le before it is imported into Repetier. Find out here how to import les and view them.
You can open an STL le in Repetier either by clicking on the
Load button (see previous page) or by clicking on the Add Object
button on the Object Placement tab, as shown above.
Navigate to
where the
le is stored,
select it and
click on Open.
The le is read and
the object appears; in this
case, the snowman.
Select the Object Placement tab and then click on Add STL
File. Navigate to where the le is kept, then select the le
and click on Open.
Click
MacOS
About STL les
An STL le contains data about 3D objects in the form of
triangles. The more complex the shape, the more triangles.
STL les are used by most 3D printers and 3D software.
When you open the STL le, the image of the object is on top
of the modeling table. It is easy to manipulate the object using
the controls on the left of the screen, and you can also use the
keyboard and mouse to do the same actions as shown below.
To rotate the object, hold down the Ctrl key and the mouse
wheel, and move the mouse.
Hold down the mouse wheel and then move the mouse to
pan the object across the screen.
Turn the mouse wheel to change the object’s size onscreen.
Quick ways to move an object
Rotate
Move Viewpoint
Zoom
318 319
User Guide User Guide
You can change the scale of an object to make sure it ts in the modelling space of the printer (in this case the idbox),
and change its orientation by rotating it.
The snowman is a bit too large for the modelling space,
so it needs to be made smaller by changing the scale. Select
the Object Placement tab, then click on the Scale Object icon
(outlined in red, above). Enter a value of 0.8, then click Return,
and the object will change to 80 per cent of its initial size.
To rotate the object, click on the Rotate Object button and
ll in a value in one of the elds under Rotate Object.
If you enter 270 in the Y: eld, the snowman will lie down.
Try out the other controls on the Object Placement tab to see
what they do. You can always return the object to its original
state by clicking on the reset button – Reset Rotation is shown
outlined in red, above.
Click on the Center Object button (outlined in red, above)
and the object is moved to the centre of the modelling space.
Change the scale
Rotate
The Translation elds can be used to move the object
around in the modelling space in three dimensions. The
scale changes the size of the object: values less than one
reduce it, and over one enlarge it. The rotate elds turn the
object in three dimensions.
The Rotate and Scale commands appear under the Object
Placement tab. There are also elds that let you move the object.
MacOS
Adjust size and position
1
2
2
1
318 319
User Guide User Guide
After importing and positioning an object, you move to the Slicer tab where you select the options regarding the printer you are using
(in this case the idbox) and the lament you are printing with. There are also settings that you can choose that relate to the object being
printed. On this page, we examine the options you can select to give your print the best chance of working properly.
Choose the settings before slicing
Options for CuraEngine (Windows)
On the Slicer tab, you select the settings for
the printer and the lament from a selection
of drop-down lists. Most of the settings will
have already been determined when you set
up Repetier for the idbox and when you set
up CuraEngine for the printer and the type of
lament. You also get to choose options to
make it more likely that your model will print
out properly. These settings are determined,
typically, by the shape and size of the object
being printed, as well as the print material.
To change any of the pre-set settings, click
on the Conguration button and look on
the Print and Filament tabs of CuraEngine
Settings (see page 261).
Quality
The values for this will have been set and
named (or left at Default) when you set up
CuraEngine (see page 261).
MacOS The slicer you use with MacOS is Slic3r, and you choose your options on the Slicer tab.
Options for Slic3r (MacOS)
The values you can select from the
drop-down lists by Print Settings, Printer
Settings and under Filament Settings will
have been set on pages 261 to 262 if you
have followed User Guide 1. If you want to
change any of them, click on the Congure
button. It is a good idea to put a tick by
Generate support material on the Support
material settings section under the Print
Settings tab.
Print Conguration
The values for this will have been set and
named (or left at Default) when you set up
CuraEngine (see page 261).
Adhesion Type
The choices are None, Raft or Brim. Raft is
mostly used to help ABS models adhere to
the modelling surface. It is also used when
printing objects with small footprints. Brims
stabilise objects that have isolated parts.
Filament Settings
The values for this
will have been set
and named (or left at
Default) when you set
up CuraEngine (see
page 261).
Enable Cooling
On the idbox, cooling
is determined by the
fan draught blocker
strip and not by
software. Use the fan
draught blocker for
ABS and not for PLA.
Speed and Inll
density
The values for this
will have been set
and named (or left at
Default) when you set
up CuraEngine (see
page 261).
Support Type
The choices are
None, Touching Bed
or Everywhere. Use
support when your
model has areas
that don’t touch the
modelling surface.
Touching Bed is
most commonly
used option.
320 321
User Guide User Guide
With the selections made on the Slicer tab, it's time to generate the instructions that will tell your printer how to make the model. To do
this you use slicing software that generates the G-Code.
When you are ready, and have chosen suitable settings, click on
Slice with CuraEngine to generate the G-Code for your model.
When the slicing is nished and the G-code has been generated,
you are taken to the Print Preview tab. Make sure your computer
is properly connected to the printer before you click on Print.
HINT If you don't want to print the object right away, or
you think you might want to output it more than
once, you can save the G-Code for re-use. The code is
saved to a le that you can open and then just print without
having to position an object or regenerate the G-code. Click
on Save to File on the Print Preview tab and save the le to
a suitable location.
Click on Slice with Slic3r to start the slicing process.
When the code has been generated, click on Run to print.
The procedure for MacOS is very similar to that for Windows. When
you have chosen your settings, the object is sliced.
MacOS
Click
Slicing
A 3D model made with the idbox is built up of a series of layers, or
slices, of lament, each layer having material deposited in a carefully
controlled manner on the layer below. Slicing software generates the
information that allows your printer to lay down these layers.
G-Code
Slicing software, such as CuraEngine demonstrated here for
Windows and Slic3r demonstrated here for MacOS, produces the
G-Code, the series of instructions that have the effect of moving the
printer head and modelling platform, and telling the extruder when to
extrude to build up the layers of your model.
Slicing and printing
320 321
User Guide User Guide
Problems during testing or operation See Stage(s)
Head or modelling table is not moving Extruder motor is not working
Lead screw does not turn (but Z-axis motor does)
Motor does not stop when head reaches edge Clunking or stuttering sound is heard when the
head moves
If during testing of the idbox as described in User Guide 2 there
is no movement in the X, the Y or the Z axis, try the following:
If the gears do not move, check the connections
to the extruder motor. è Stages 39 and 40
If the motor is turning but the coupling is not, check the
tightness of the screws in the coupling. è Stages 46 and 48
The likelihood is that a limit switch is not operating properly.
Check the following: Press the Emergency Stop button. Move the head manually, to
see if it moves along the rods smoothly. If it does not, loosen
the screws of the enclosure slightly, then when the head moves
smoothly when moved by hand, tighten them again. If it still does
not move smoothly, a slider might be displaced, so try adjusting
again using the jig.
lCheck that the connect button in Repetier has been pressed.
lCheck that the motor cables from the driver board to the
motors are properly connected. è Stages 39 and 40
lCheck that the motor drivers are properly inserted into
the driver board. è Stages 39 and 41
lCheck that the dog (metal plate) has been correctly assembled
and that it enters the U of the switch. è Stages 24 and 25
lCheck that the cable to the limit switch is properly plugged
into the driver board. è Stage 43
lCheck that the motor driver is correctly plugged in.
è Stages 39 and 41
Corrections, trouble-shooting and maintenance
In this last section of User Guide 3 are some suggestions as to how to investigate problems when testing the idbox
(see User Guides 1 and 2 for the testing procedures), as well as hints and tips for successful printing and maintenance
suggestions. First, though, are some important clarications and revisions.
Corrections
Page 290
On page 290 of User Guide 2
in Pack 11, Step 3 under the
sub-heading Heat up the hot end
then tighten the nozzle, refers
to a 6mm spanner being used
to tighten the nozzle. However,
the nozzle nut tool supplied with
Stage 55 should be used instead.
Please see page 238 for how to
assemble and use the nozzle nut
tool to tighten the nozzle.
Pages 291 to 292
1. On page 291 of User Guide 2 in Pack 11, the text in Step 5 describes using three
knurled nuts to adjust the height of the table. There are, in fact, four knurled nuts, one
at each corner of the table. In addition, the knurled nuts do not have the protrusions as
described in Step 5.
2. On page 292 of User Guide 2 in Pack 11, the text in Step 9 describes turning a
knurled nut at front centre but there is no nut at front centre. The nut that should be
turned is at front right.
3. On page 292 of User Guide 2 in Pack 11, the text in Step 12 describes turning
knurled nuts at front centre and rear left. However, the nuts that should be turned are at
front left and (if necessary) rear left.
è Stages 26 and 27
322 PB
User Guide User Guide
Alternatives to BuildTak
Filament debris builds up in the drive roller groove If the lead screw is squeaky when operating
Things to do when changing from ABS to PLA
Cleaning filament from the nozzle
You should not output directly
onto the acrylic surface of the
modelling table. Alternatives
to BuildTak, the self-adhesive
covering for modelling tables,
include polyamide insulating
tape, also known as Kapton
(shown) which can be bought
online or at retail outlets.
During printing, as lament passes
between the drive roller and the arm,
bits of it may ake off and accumulate
in the groove of the drive roller. If this
happens, the roller might not be able to
grip the lament properly.
If there is lament debris on the roller,
you should clean it off when it builds up.
One method you might want to try is to
us a suitably sized interdental brush.
If there is a squeaking noise when the lead screw is turning,
it needs to be regreased. Wipe off the old grease and apply a
new coating, and treat any rods where movement is no longer
smooth in the same way.
The main thing to be concerned about is the fact that PLA melts at a lower temperature than ABS, so you have to remove any ABS left in the nozzle
before changing to PLA. So, after using ABS, keep the temperature at 240 degrees C and clean out the nozzle by inserting a metal rod with a
diameter of 1.9mm – piano wire will do – in the tube tting of the head and moving it slowly up and down until the remaining ABS is pushed from the
nozzle. Then you manually change the temperature to 200 degrees Celsius before setting up with PLA lament as described on pages 311 to 312.
Donʼt leave the printer unattended when printing
Printing with ABS
The head is operating at high temperature, so you must be able to
supervise its operation at all times, even though some objects can
take hours to print out.
To get ABS to adhere to the unheated bed of the idbox, you can
try spraying a BuildTak-covered modelling surface with ‘extra hold’
hairspray. And remember to use the fan draught blocker. You will
also have to change the settings, so that the extruder temperature
is set to 230-240 degrees Celsius.
When the head heats up,
lament my leak from the
nozzle. This can be cleaned
up with a cotton bud, as
shown here. The best buds
to use are less-uffy ones.
Output hints and tips
Maintenance and cleaning
Can the modelling table clips be moved?
As long as the modelling surface is securely clipped to the table
base, it doesn’t matter where the clips are located, as long as they
are not positioned where they might be hit by the nozzle. There is
a chance that the left clip might be in the way when larger models
are being output, in which case it can be moved to the front, as
shown in the photo, right. Try
to determine, after the G-Code
has been generated, if there is
any chance that a clip might be
in the way and move it so there
is 20mm clearance around it.
Do not forget to allow for the
skirt around an object.
The photo above shows an
interdental brush being used to
clean the drive roller.
Tighten up regularly
Under normal operating conditions, screws can work loose,
especially those around the motors and other moving parts.
Check all screws, nuts and bolts periodically, and tighten them
up without overtightening them.
323 323
Assembly Guide
Stage 51: Insert the extruder
drive shaft into the U-shaped
extruder assembly
First, add a bearing to laser-cut part A,
then t the drive shaft into the bearing
with the drive roller. Then, add the
second bearing to laser-cut part B and
put the other end of the drive shaft
through this bearing. Next, x nuts into
the laser-cut parts A and B and secure
laser-cut part C to the assembly, using
screws that are only nger-tightened
for now. Make sure you orientate the
laser-cut parts correctly during the
assembly process.
Parts to have ready
21
Put an M3 washer onto each of the 12mm
M3 truss head screws supplied.
Get ready the large gear and drive roller that you assembled in Stage 50, and also the
bearing and M5 washer supplied with Stage 50.
1: Laser-cut part A
2: Laser-cut part B
3: Laser-cut part C
4: Bearing (F685ZZ)
5: M3 truss head screws (12mm) x 4
6: M3 washers x 4
7: M3 nuts x 4
Stage 51 Components
In this stage, you will insert bearings into the sides of the U-shaped extruder assembly
while adding the drive shaft with its drive roller and large gear.
Bearing M5 washer
Stage 51 Assembly Area
12 3
4
56 7
324 325
Assembly Guide
3
7 8
4
Position laser-cut part A as shown, with the curved
indent on the left, and the large circular hole
above the two small circular ones.
Position laser-cut part B as shown, with
the large circular hole on the left and the
medium-sized circular hole on the right,
above the two small holes. Fit the other
bearing in the medium-sized circular hole.
Turn the laser-cut part B over, so that the large circular hole is on the right. Put the
drive shaft on part A through the bearing, so that part A is sitting on top of part B.
Put one of the bearings into the large
circular hole, as shown above.
Assemble the large gear into laser-cut parts A and B
Tabs
Tabs
Curved
indent
Large
circle
Two
small
circles
Tabs
Tabs
Large
circular
hole Two
small
holes
Two
small
holes
Bearing in
medium
sized hole
Bearing
Large
circular hole
Plug the drive shaft, with the large gear and the drive roller mounted on it, into the
bearing, so the drive roller is close to the bearing.
Put an M5 washer on the drive shaft.
56
Large gear
Washer
Drive
roller
324 325
Assembly Guide
9
12
10
Turn the assembly so that the large hole is
facing you, on the right.
Put washers over the shafts of each of the four
12mm M3 truss head screws. Then, insert the
screws into the nuts (inserted in Step 10, above)
and nger-tighten them.
Put an M3 nut into each of the slots shown outlined in red, above.
The drive shaft, with its large gear and drive
roller, has been assembled into the U-shaped
mounting part of the extruder.
To allow for
adjustment when
the screws are
fully tightened, three of
the four holes are oblong.
One is circular.
Add laser-cut part C to complete the U-shaped assembly
Oblong holes
11
Hold laser-cut part C as shown, so that the two tabs are at the top and the six small circular holes
are towards the bottom right. Insert the four tabs on laser-cut parts A and B into the slots outlined in
red, above left, in laser-cut part C.
Tabs
6 small circular holes
Stage
nished
326 327
Assembly Guide
Stage 52: Put together
the extruder arm and
drive assembly
After inserting the four M3 nuts into the
sides of the U-shaped drive unit, add laser-
cut part D to the existing assembly and
then nger-tighten the M3 screws into the
nuts to hold it in place. Now, add the arm
to the drive unit, securing it with a 35mm
M4 truss head screw. This passes through
a hole in the side of the drive unit, then
through a hole in the arm and then through
a spacer. Tighten the 35mm M4 screw
enough to hold the arm in position but not
enough to restrict the arm’s movements.
Parts to have ready
21
Put an M3 washer on each of the four
12mm M3 truss head screws supplied
with this stage.
Get ready the drive unit that you assembled in Stage 51 and the extruder
arm you put together in Stage 49.
1: Laser-cut part D
2: M3 truss head screws (12mm) x 4
3: M3 washers x 4
4: M3 nuts x 4
5: M4 truss head screw (35mm)
6: M4 spacer (12mm)
Stage 52 Components
In this stage, you will add laser-cut part D, which makes up the fourth side of the drive
unit, and attach the extruder arm to the unit using an M4 screw.
Tools you will need
Phillips screwdriver size 1
Tweezers or pliers
Drive unit Extruder Arm
Stage 52 Assembly Area
12
34
5
6
326 327
Assembly Guide
3 4
5
6
Position the drive assembly so the large
circular hole is at the front left and the
large gear is at the front right.
Insert an M3 nut into each of the slots shown outlined in red, above.
Hold the laser-cut part D as shown, with its tabs at the top. The square hole should be central and the circular
hole to the right. Insert the tabs on laser-cut parts A and B into the slots (outlined in red in the image, above
left) in laser-cut part D.
Insert the screws with washers through
the screw holes (ringed in red, above).
They will t into the nuts you added in
Step 4. Finger-tighten them.
Three of the screw holes in
laser-cut part D are oblong,
and the one at the top left is circular. This
allows you to adjust the position of the
part when the screws are fully tightened.
Add laser-cut part D to the drive assembly
Tabs
Tabs
Square hole
Circular hole (through which
passes the filament)
Large
gear
Large
circular
hole
328 329
Assembly Guide
8
9
11 12
7
10
Insert the 35mm M4 truss head screw
about halfway into the aligned
screw holes.
Turn the drive unit so the arm is facing you
and check that the 35mm M4 truss head
screw does not poke out of the hole in the
arm. If it does, pull it back.
Holding the spacer in position, push
the 35mm M4 truss head screw in,
so it enters the spacer.
Move the assembly so the M4 screw is
uppermost, then tighten the screw into
the threaded hole in laser-cut part B.
Hold the drive unit, so the curved indent is at the front right. Move the lower end of the
extruder arm into the drive unit and align the screw holes (ringed in red, above) in the
arm and in the drive unit, as shown.
Pick up the 12mm M4 spacer with tweezers and position it as shown above,
so that one of its ends aligns with the screw hole in the arm.
The arm has been added to the drive unit
for the extruder.
Add the arm to the drive unit
Curved
indent
Screw
hole
Push in
Tip of screw
not protruding
Screw
hole
Do not over-tighten the
screw as this might prevent the
extruder arm moving freely.
Stage
nished
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