Maltese Falcon - Full Size
Description
PDFDetective Tom Polhaus: "Heavy. What is it?"
Sam Spade: "The, uh, stuff that dreams are made of."
Update Jan.21, 2012 : Added the full size STEP file (unmodified - one piece) for anyone who want to play around with it.
The Maltese Falcon is a great movie - you should watch it. Seriously - go watch it NOW!
My printer does not have the build volume to be able to print this full size in one piece, so I sliced it into four pieces in CAD, partially hollowed out each piece to reduce filament usage, and added dowel pin holes in all pieces to help align them for re-assembly.
The four pieces (from the head down) are as follows :
Filament Cost Print
Part Used (g) US$ Time
====== ======== ====== =======
Head 115 $2.92 9h39m
Chest 129 $3.28 9h08m
Feet 130 $3.32 13h27m
Base 113 $2.60 7h46m
Totals 487 $12.12 40h0m
In addition to the four falcon sections, I also included a print for dowel pins (or you can use 1/4" (6mm) wood dowels). The "hollows" in each section interconnect in the assembled piece; I plan to fill the inside with cement to give the model some heft.
Attribution : I found this STL by Colin Freeman:
https://www.thingiverse.com/thing:46631
I used FreeCAD to convert the STL to a solid, then imported it into OnShape and scaled it up to 12" in height.
The OnShape 3D CAD files for this are here :
Print instructions
Print in PLA using the 3mf files provided; otherwise :
- perimeters = 3
- 10% - 15% rectilinear infill
- detachable supports
Supports required for the sections are as follows :
- head : under the beak
- chest : none required
- feet : under the front claws, and two small areas on the sides
- base : print upside down, no supports
For the dowel halves, I increased elephant's foot compensation to 0.4mm. I have also included a test block for testing the dowel fit - the dowels should fit firmly but not so tight that it is difficult to insert or remove them. It is not necessary to glue the dowel halves together - simply hold the two halves together while inserting.
Six dowels are needed to align the pieces for assembly. I printed the dowels in halves - this enables better bed adhesion and allows the dowels to be printed linearly for greater strength. The provided gcode will print all 12 required halves individually in one session.
Model origin
The author remixed this model.
