16. Back at the FDM, check
to see if there is enough space on the foam build platform for your model.
If there is not enough room, replace the foam.
If it is necessary to replace
A. Open the FDM
front door. Watch where you put your hands; avoid getting burnt.
B. Flip the locking lever
on the front, left of the build platform.
C. Pull the build platform
forward, removing it from the FDM.
D. Close the FDM door.
E. Place the build platform
on a table, and remove all 10 pins and the foam insert.
F. Remove any foreign materials
from the build platform.
G. Flip the foam over, or
if the underneath face was already used, select a new piece of foam. Note
that the brown urethane foam is designed for ABS and the blue polystyrene
foam is designed for investment casting wax (ICW).
H. Place the foam into the
platform so it is seated firmly. This might require shearing part of the
edge of the foam.
I. Invert the build platform
so the foam is against a table.
J. Pressing down firmly on
the platform, replace all 10 pins.
K. Blow off any debris, and
replace the build platform in the FDM, securing the locking lever and closing
17. Check to see of the three
temperature readings are sufficient.
18. Check the Auto Shut Off
status, and change it appropriately by depressing the Auto SO key on the
FDM. If you will be the last to build a model for the day, turn Auto SO
on; if another model will be built right after yours, leave it off.
19. Extrude a bit of plastic from each head, to make sure
there is no problem. To do this, toggle the Model/Support button until it the
display reads Model. Then press the Load button once. In five to ten seconds you
should see a strand exiting the model head. Press the Load button again to
cancel the load. (Whatever you do, do not press the Unload button, as this backs
the material out of the head.) Then press Model/Support to toggle to the support
material and repeat. If plastic was extruded from both heads, then all you need
do is brush off the plastic from the heads, and make sure the platform and rear
brass brush are clear of debris. If one of the heads did not extrude plastic, or
if there was an error message, please let the lab supervisor know.
20. Notice the button on
near the top, center of the FDM that says "Prgm 0" above it and "Pause"
below it. Let's call this the Pause Button. If this button has a flashing
amber light, press that button now to turn off the light. If the light
is on, the FDM cannot receive information from the computer.
21. Back in Insight, click
the "Build" icon. In the "Pack and Download" dialog box, copy the following
information to your notes:
- Estimated Model Material to be used:
- Estimated Support Material to be used
- Total time estimate:
Also, make a note of the present date and time and of the
date and time when the job should finish. Click the icon
to send the job to the modeler. (If you had wanted to send multiple copies to
the FDM to be built simultaneously, you would have indicated so in this dialog
22. The Pause Button light
should be flashing; press it to turn it off. This will cause the FDM to
run through initialization routines, extruding support material and wiping
the tips. When it is done, the light will come on again.
23. Use the directional keys
on the FDM to move the head in the XY plane, or the platform in the Z axis.
Pressing the center key along with another key invokes a faster mode. There
is also a toggle button so that the up/down keys can be control both the
Y and Z axes. If necessary, lower the platform, open the door, and use
the brass brush to gently clean the extruding tips. Be sure to also remove
excess material from the inverted brush in the machine and from other areas
in the machine and close the door. Reposition the left "build material"
tip so that it is at the front, left of the rectangle where you wish the
build to occur. Try to get the tip so it is barely touching the foam, neither
embedded in it, nor above it.
24. Press the Pause Button
25. Note the time, the amount of material required, and estimate
the approximate time of completion.
26. Turn off the monitor. Since an active serial cable
connection is required for the build to continue, other applications on that
computer might interfere with the build. It is a good idea, therefore, to avoid
using the computer for anything else during building.
27. Return when the model
is almost finished, or if its an overnight build, then return as soon as
the lab opens in the morning. Put on your safety glasses again.
28. Make sure your files
are stored in the appropriate place for your class.
29. When the model is done
building, the head will go to the home position, the Pause Button light
will flash, and the FDM display will show "100%". Open the door and gently
remove your model. You might wish to remove the build platform to make
this easier (especially for large models), but replace the platform when
you are done. A fingernail may be used to remove the model from the foam.
Close the door.
30. Move any files created
to the appropriate directory; do not merely copy them.
31. If no other user is about
to build a model, log off of the computer, and turn off the computer, the
monitor, and the FDM. The fan in the FDM will probably still operate for
32. Carefully remove the
support material from your model so you do not injure yourself or the model.
Recommended tools for this are needle nose pliers, tweezers, and maybe
a small screwdriver, and an X-Acto knife. If necessary, sand the model
very lightly. Clean the FDM and, if necessary, finish your model. Be careful to
avoid cutting yourself, to avoid breaking the model or a knife, and to protect
your eyes from flying debris. Make sure others around you have eye protection.
Please place all trash into the trash receptacle.