Troubleshooting:
My ABS prints warp or come off the glass before finished printing.
Warping is caused because the edges of your print cool faster then the center of the
print which causes them to shrink. There are a few things that can be done to help
minimize or prevent this warping.
1. Make sure your first layer
print is squished to the glass, if
you look at the bottom of your
print (side in contact with the
glass) you should not easily be
able to see the lines of filament,
if it looks like the left picture try
lowering your nozzle a little till
your print looks the right photo.
2. Make sure your heat bed is at the proper temperature, For RAMPS electronics and
ABS you will want your heat bed as close to 110c as possible, the high temperature
helps keep the ABS stuck to the bed. If you have a hard time getting your heat bed up
to 110c you may want to add a
3. Next we need to make sure we have a good printing surface, on top of your heat
bed you should have a piece of glass, for ABS it is recommended to spray your glass
with a extreme hold hairspray like this:
walmart.com/ip/Fructis-Style-Extreme-Hold-
Extreme-Control-Anti-Humidity-Aerosol-Hairspray-8.25-oz/19200744
, this is the one
we use in our botfarm and not all hairspray's are created equal, if you can get the
Garnier Fructice Extreme #5 the make sure you use it. When you apply the hair spray
to the glass it should take you about 3 or 4 seconds to spray the whole bed. If your
prints stop sticking you can spray it again on top of the last layer. After a few layers
you will want to wash your glass off under some hot water before applying a fresh
layer. You can also cover your glass with Kapton tape, you will want to get as wide of
a roll of kapton tape as possible, if your print is on top of any seam of two pieces of
kapton tape meeting the print will not stick, also you will want to clean your kapton
tape with acetone to prevent oils from the kapton tape to help the print to stick. You
may also want to research ABS glue.
4. Environment - if you are in a cold room or a room with moving air that can make
your print warp also. Sometime people will have an enclosure to keep their printer in
a hot environment though most of the time this isn't needed.
5. Adding mouse ears or a raft to your print can help with warping:
www.makerbot.com/blog/2011/02/25/mouse-ears-defeat-corner-curling-monster/
, raft
settings are in slic3r Print settings tab under Support Material. You may also want to
play with the skirt function and add multiple layers as a wall to keep the heat in.
