Dremel Printing

Transcription

Dremel Printing

Guide for Dremel Printing
Table of contents:
General information: Dremel preparation:
Printing your file:
Page 1
Page 5
Page 8
File preparation: Material loading:
Page 2
Page 6
General information
The Dremel Idea Builder 3D printer extrudes PLA plastic along a tool path to create layers much like our higher end
Dimension. The Dremel however does not have the level of precision the higher end units can offer. The Dremel can
print faster than the Dimension because it does not have the support material option. This means the supports must
be manually removed post printing and you may have to sand down any defects caused from support.
Dremel Idea Builder 3D40
Max Build Size
9” x 5.9” x 5.5”
Build Resolution
0.1mm
Material
PLA
Material Options
PLA only. Available in multiple colors. Dremel brand PLA or small spools from the resale shops.
Build Options
Various infill options are available from Simplify 3D software.
Pricing
No cost to check out. Users must supply their own filament. Potential fees for lost materials.
Print Time
Varies dependent on the infill and size of your object.
File Types
Preprocessed STL file from Simplify 3D
- Printing with this type of PLA is far cheaper than printing on the other higher end printers.
Potential
- You gain more control over the printing process.
Applications and - Some objects can print faster on the Dremel than other on machines.
Benefits
- Many material colors are available.
Cost vs Time vs
Quality
Low quality but fast and lower cost.
Location:
Advanced Output Center, 1232 Sullivan
Access:
Users must check out a kit, containing a build platform and flash drive from AOC staff. Users are
responsible for these items and can face fines if lost - $15 for the platform $10 for the flash drive. There is no cost to
use the machine. Users supply their own material. Checkout times are around 24 hours but we can discuss flexibility
depending on your model and the printer’s queue.
Page: 1 of 9 Last Modified: August 4, 2016 3:40 PM
This document is available electronically at http://crit.artic.edu/aoc
Advanced Output Center
Sullivan Center, Rm. 1232
312 629 6688 / advancedoutput@saic.edu
File preparation in Simplify 3D
Simplify 3D is used to process STL files for the Dremel 3D printer. You can find this software
on all of our AOC lab computers. You need to prepare your file in this software in order to
generate the necessary printing code.
First, import your file to the tray by clicking the “Import” button and choosing your STL file.
When the file is brought in, you will see it drop down onto the build platform. The platform is sized to the Dremel’s actual
platform so you can visualize the scale. You will also see the name of your STL in the upper left panel. Double click the
name. In this panel you can manipulate the values to edit scale, orientation, and rotation. You can also simply click the
“Center and Arrange” button to auto-orient.
Next, lets preview our support structures. Go to “Tools” and click “Customize Support Structures”. In the dialog box that
pops up, you can edit the “Max Overhang Angle”. A lower angle will yield more support structures. Hit “Generate Automatic Supports” to preview the support (the orange square structures). Angles within the 30-45 range work well.
As you are just starting out with the
Dremel, allow the software to generate the support this way. As you get
more experience with how the printer
handles your parts, you may find that
certain areas need more support or
certain areas may seem to not need
some support structures.
In the same panel, you can edit support structures one at a time. Click
the remove button under the header
“Manual Placement” and then click on
a structure to remove it. Conversely,
click the add button and then click on
an empty area to place a structure. Hit
“Done” when you are finished.
The next thing you must do, is add a process. A process is a profile you can
edit and assign to your model. Take a look at the processes panel on the lower
left side of the software. If there is a process already there, click it and hit the
“Delete” button. Click the “Add” button in the bottom left of the software to
begin creating your process.
First, check a few important settings. Make sure you choose PLA for the material. The Dremel 3D printer only prints in
PLA. Make sure the selected profile is the Dremel Idea Builder. Also, make sure you are only seeing the panel pictured in
this guide below. If advanced options are shown, click “Hide Advanced”.
NOTE: DO NOT MODIFY ANY OF THE ADVANCED SETTINGS! Doing so has the potential to severely damage the
machine which you will be liable for. If you are having problems with your model or print or have any questions about
settings, ask an AOC staff member and we will treat advanced options on a case by case basis.
Breakdown of FFF Settings:
*See the AOC’s Dremel example board for visual examples of these settings.
-Select Profile: Choose “Dremel Idea Builder”. If this
profile is missing, see an AOC staff member.
-Print Quality: This decides your layer height. Fast
quality will yield a thicker layer height at around 0.3mm.
Your path will be the most visible at this setting, but will
print much faster than medium or high quality. Medium
quality has a layer height of 0.2mm, and high has a
layer height of 0.1mm.
-Infill: Infill is the interior of your model. A higher percentage will result in a much more solid and heavy print, but will take
longer to print and will use more material than a lower infill percentage. Do not go below 10% infill without first speaking
to an AOC staff member.
-Raft: Include a raft to allow for better adhesion to the build platform. A raft is highly recommended.
-Support: If you do not have this option checked, the software will not include the support you generated previously.
Printing without support is generally very risky and could lead to damage and clogging of the extruder. Speak with an
AOC staff member before attempting to print without support as some models can do just fine without it.
When you have chosen your settings, click the “Select Models” button to assign
your process to your model. You can have more than one process in the software. For example, I have two models, but one of them needs to be stronger
than the other so it must have more infill. You can make one process with 60%
infill and assign that to the part that needs to be strong. Then, you can make
another process with 15% infill and assign that to the other one. This way, you
can print multiple parts with different infills, qualities, etc on the same build.
After assigning your processes to models, click the “Prepare to Print!” button
at the bottom left of the software to begin generating your tool path and print
preview.
If you do have more than one process, the software will ask you to select the
processes you want to print. Select all the processes you made, and choose
“Continuous printing layer-by-layer”. Hit “Ok” to view a job preview.
You should now be able to see a colorful preview of your build.
The color on the model correlates to the travel speed of the extruder
head. You may also see red lines denoting travel moves. A small gray
cylinder symbolizes the extruder head.
At the bottom of the software, you should be able to see a few preview options. You can watch a preview build by pressing the “Play/
Pause” button. You can adjust the speed of this preview with the
slider underneath the button.
You can also move the “Start” and “End” sliders to scrub through the
job. Looking through the job in this way will also give you a preview of
your infill and raft.
In the top left corner, you will see “Build Statistics” which will give you very
useful information such as build time and filament consumption. Knowing
your build time is important for knowing how long you will need to machine
checked out. Filament consumption is important because with the Dremel,
because if it runs out during a job, it will not pause itself and ask for more.
It will print air and ruin your build! Make sure you have enough filament on
your spool for your job or be ready when it starts to run out to pause the
build, press “filament” and load in more filament.
When you are satisfied with your job, click the “Save Toolpaths to Disk”
button in the lower left corner so save the G-code to your flash drive. A
flash drive will be provided in the kit checked out from the AOC, along
with the Dremel build platform.
It is important you name your file only using letters and numbers, files
named with other characters may not be readable by the Dremel.
If you want to go back and make changes to either your models or your
processes, hit the “Exit Preview Mode” button to go back to the normal
model view mode.
You can also save out a factory file that will allow you to save
your progress in the software by going to “File” and then
“Save Factory File As...”. You can open this file up in Simplify
3D and continue editing.
Remove the flash drive from the computer. Grab your
filament spool and checked out build platform and proceed
to the Dremel 3D printer itself, located in the front room of
the Advanced Output Center.
Dremel preparation
There are a few steps to do to ready the Dremel for printing. First, with the Dremel powered off, Insert the build
platform. Do so by lowering the back of the platform onto
the two posts near the back of the machine.
Lock the platform into the bed by pulling out the front
clasp and releasing to lock into place. The platform
should now be snug and locked in.
Next, insert the flash drive into
the front of the machine, to the
right of the touch screen. Flip
the power switch on the right
side of the machine to power
it on.
Platform leveling
Before you start printing or loading filament, it is a good idea to level the platform. This is not necessary but highly recommended as an unleveled platform can cause your print to fail.
First, on the small touchscreen panel, choose “Level”.
Platform leveling
The platform will raise all the way to the top. Looking underneath the platform, you will see two blue knobs, one on either
side of the front of the build platform.
The process will begin with the left side of the bed. The screen will prompt you to turn the knob, indicating which direction
you should turn it depending on whether the bed is too high or too low. Once the bed is in the correct position the screen
will display a message saying “ready to verify”. Press the “verify” button in the upper right to complete the left side, and
then repeat the process with the knob on the right side of the platform.
Once you have adjusted and verified both knobs the touch screen will briefly display a “leveling complete message” and
then return to the main menu. You are now ready to load your filament.
Loading filament
The first step to loading filament into the Dremel printer, is preparing your spool.
Make sure your filament spool is tightly wound. Also check that the
end of the filament has a nice clean cut edge. If needed, you can
check out a 3D print kit from the AOC with a filament cutting tool.
You also want your filament to be coming under and up as shown
in the image to the right.
Loading filament
On the left side of the printer,
you will see a circular door.
Grasp the silver bar running
through the center and twist to
the left to open.
Before placing your spool on
the post, feed your filament
through the plastic feeder
tube, until you have at least
three inches of filament
sticking out of the other end
of the tube.
Once the filament is fed through the tube and accessible on
the other side, place the spool on the post in the spool holder.
The filament should be able to be pulled freely from the end
of the tube, with no resistance from the spool. Once you
have loaded the filament through the feeder tube, place the
spool on the central peg in the spool holder. After the spool
is in place, reattach the door to the left side of the machine
by placing it in the cavity and twisting right until it locks into
place.
Go back to the main menu and then choose “Filament”. It will first prompt you to “cut” the current filament. If no filament
is currently loaded, skip this step and press next. At this point, the extruder will heat up and purge any material left in the
extruder. Once this is complete it will ask you to feed the new filament into the hole on top of the extruder.
Loading filament
Before pushing the filament into the hole at the top of the extruder head, first feed it through the guide attached to the top
of the extruder. Once your filament is through the guide, feed it into the small hole on top of the extruder. If the filament is
in the hole, press next. The extruder will begin extruding filament, and will ask you to press done once the filament being
extruder is the right color. Once your filament is being extruded you are ready to return to the menu and begin printing.
Printing your file
The platform is level, the filament is loaded, now it is time to print. Select “Build” from the main menu. Next, click the icon
of the flash drive, choose your file, and press “Build”.
At this point the printer will start warming up and will print your file. The Dremel will give you an estimation of the print
time on screen. We recommend that you stay with the printer during the entire process. Some prints will fail and you
need to be there to correct the failure.
Printing your file
It is especially important that you keep a close eye on the first few minutes of
your print to make sure it is adhering to the build platform. Remember that building with a raft will give your print a much better adhesion to the platform.
If you see any large chunks or strings sticking to the platform that shouldn’t be
there, feel free to pause the print, clip those parts off, and resume the build. The
build pictured on the right was paused in order to get rid of the chunky bits. If you
are unsure if your part is sticking, ask an AOC staff member.
Remember, during the build you can pause it and press “filament” to unload the
old filament and load in a new spool. However, if the machine is left to
completely run out, the build will be lost! Know your job’s filament consumption
and check often!
Post-processing
When your build is finished, the screen will alert you and the platform will lower to the bottom. Press down the platform
lock at the front of the platform to release it and carefully pull it out. Some prints, especially those not built with a raft, can
pop right off the platform by pulling it off manually. If your print is adhered strongly, check out an AOC 3D printing kit and
use the clippers on the perimeter of the part. Then, slide the scraper underneath to pop it off the tray. Sometimes the part
will lift right off the raft and other times the raft and support structures need to be clipped away.
Remove your filament much like you loaded it by pressing the “Filament” option from the main menu. When the prompt
asks you to “Cut” the filament, use scissors or wire cutters to cut the filament near where it enters the top of the machine. After this simply re-spool the filament and remove your spool from the holder.
Power down the machine. Remove the platform and flash drive and return them to the AOC.

Dremel Printing

Transcription

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