Modular castle kit - Duplo compatible

[Imported from thingiverse and outdated. I am working on a new version, available soon. DKS, Jan 2022]

Blocks" that can be horizontally assembled into a large medieval castle,DUPLO size

Your choice:

• Print bricks with base platform attached
• Print stackable objects that you can put on top of a base plate

Combine the two The source code is no different from its "parent", i.e. thing http://www.thingiverse.com/thing:31284 that usesLEGO size for the STLs.

I just generated DUPLO size and proportions instead of Lego size and proportions, for folks who don't want to learn OpenScad.

Therefore this "derivative" is just a Duplo "subdirectory" that includes a subset. Please go and read the rest in the parent.

Instructions

Disclaimer

I didn't print any of these models. However, I did print similar structures. See a picture in http://www.thingiverse.com/thing:2106

Expected problems

• floors over DUPLO-base (nibbles underneath). Plastic may bond sideways and in knots: Try to print as cold as possible (and tighten the extruder). In addition - as soon as you get irregular surfaces in large horizontal fully filled roof layers - you could turn off the fan, so that the nozzle won't get stuck.
• The visible top layer of a base plate should come out ok if you use enough fill and the bottom will be ok iff you print it slowly and nozzle real close to print bed.
• Random filament feeding problem after many hours of printing.

Ugly horizontal overhangs, in particular with nice modern low-resolution printers ;) Suggestions

I suggest to print these models as speedy as possible, unless your printer doesn't mind 24hour prints.

However, the first layer must printed very very slowly.

• You could try fairly thick layers (e.g. 3.5mm). I did print a fairly nice looking castle over 2 years ago with a RapMan... Try with the small calibration block first.

Fit

Fit of DUPLO-compatible connectors is rather loose in order to compensate for sloppy quality and thicker layers.

If your printer is reliable and you don't mind waiting a day, try 0.2 or 0.25 layers with a rather dense fill for good results. In any case, for quality, you should not use these STLs, but rather adjust the parameters in the OpenScad file (see the "parent", http://www.thingiverse.com/thing:31284 as well as my OpenScad library: http://www.thingiverse.com/thing:2106 which does the work behind. These Duplo models are just lists of function calls...

Category: Construction Toys