Wooden Filament Coaster Set by cribblekris

Last crawled date: 3 years ago

Here is a set of 4 coasters designs, an 8-piece and a 4-piece tray. There is also a blank coaster into which you can insert your own DXF and extrude to 1.6mm from the inside bottom surface. Send me a message for a link.
This was designed to print with a 0.8mm nozzle and woodfill pla with no more than 40 percent wood shavings.
Printing Settings:
Wood PLA expands a bit on heating. It is also slightly abrasive. You can finetune coasting and priming settings to reduce blobbing and stringing etc. Its prone to stick to the nozzle exterior when a new extrusion starts, which is why I suggest making use of a copper plated nozzle. Tune your retraction settings with a stringing test. https://www.thingiverse.com/thing:2219103
For this print:
Initial layer height is 0.3mm – 0.4mm
Layer height is 0.2mm
Line width 0.8mm
Wall thickness 2.4mm
Enable ‘Filter out tiny gaps” setting.
Make your print surface hot, about 60 degrees.
Do not print the outer walls first.
Play around with your speed settings. Some people say print slower to create better adhesion. In this model I print between 35mm/s for initial and top layers to 40mm/s for infills and walls, and you can probably go faster after your initial layers.
Wall line count is 4.
Bottom layer count is 2.
Top Layer count is 3
Infill Pattern is Zig Zag
Infill line distance is 1.6mm. You can reduce this, but this keeps the coaster nice and firm. Its only two layers.
Top and bottom layer pattern is Zig Zag. Concentric might give you a smoother finish and reduced print times, but the concentric pattern increases the risk of filament adhesion to your nozzle.
Enable ironing with 10% flow, Speed at 30mm/s, 0.4mm inset, Zig Zag. Here you can try concentric, but I find Zig Zag always give the best result.
Initial Layer Flow 115%
Print temperature at 205, but you can increase this to about 210 for the initial layer. You can also extrude at different temperatures at different levels for a color variation.
Acceleration is 900mm/s’ and Jerk is 10mm/s.
Enable retractions, and here you must adjust it according to the extruder you have. I am using a direct extruder, so I only retract about 3mm, at 35mm/s.
Enable Combing mode for all.
Enable Z hop when retracted.
Print with a brim, at least 4 lines wide.
I suggest drying your filament at 60 degrees for a few hours before starting.
Works best with a rough steel print surface.
Set your print up to print items one at a time.
4 coasters will take you 6 hours with these settings, but you can print up to 9 at a time on a 300 x 300. The 4-piece coaster tray will take 2 hours and 20 mins, and the 8-piece will take 3 hours and 15 minutes. Turn ironing off for a dramatic decrease in print time.