Domino game set, box and lid

Domino game set, box and lid

What to print

00-16.stl and 22-66.stl contain all the pieces as they fit on the Neptune 4 which has a bed with 225 x 225 x 265 mm.

box.stl and lid.stl contain the box and lid which will fit only the 28 pieces. The lid slides and has a handler in the shape of a domino piece.

The "individual pieces" directory contains the 28 pieces separately which can be used in case:

• a piece is lost
• there is an issue with one of the printed pieces
• the bed in your printer is much smaller than mine
• you want to try multicolor print in your printer/slicing software
   

Multicolor note

To get white on black, which I think is necessary, you need to Pause the print to change filament for the two piece set files and for the lid.

If you have a Neptune 4/Pro the gcode files you see in the Neptune4ProGCode directory already pause at the right spot for filament change for the lid and set pieces (not needed for box). The printer will stop and unload. You then take out the black filament directly, put the white one in and hit resume. There is no need to "Load" the extruder, the printer will do that before proceeding. When resuming, Neptune shakes up the head a bit to get rid of the melted PLA from the Load, but I allways wiped it with some paper (instead of my finger on a 200C head!) just to be sure it was off.

For other printers/slicers, here is how I set it up in Cura:

I loaded the STL's in Cura, sliced and in the preview to the right I saw layer by layer to find where the bumps started. Specifically I had to see arround 2 yellow layer lines and one red one into the bump which was at layer 32 for the pieces and 33 for the lid.

With the layer written down, in Cura I went to "Extensions - Post Processing - Modify G-Code" and added a "Filament Change" script where I only change the layer number (32 for pieces and 33 for lid). I had to update my Cura for that to work and currently I'm using Cura 5.6.0. Also, remember to remove the script after you slice/experiment so it doesn't add that pause in future slices.

Before I tried layer 32 I tried 31 with a single yellow line. That was still printing one layer of the domino piece body so the dots were "white on white" in that print.

You might want to try a single piece first to see if you got the right layer when slicing in your slicing software or for your printer.
 

Why I did this project

To learn onshape which is a free cad with more features than TinkerCad.

I started following along with this excellent youtube video. I like his videos very much and he has other introductory ones.

In the video he sketches a couple of pieces, and I decided to do a whole set and a box learning a bunch of things about Onshape in the process.

The round design for the pieces is all my taste. Some may find it questionable given you connect pieces head to head when playing, but there is enough of a straight edge in the piece for that. I used a lot of onshape "fillets" for pieces, box and lid. They are awesome.

In the youtube video he used subtractions (Extrude-Remove) to have holes for the dots and separator. I used bumps (Extrude-Add) so I could change color which for this, in my head, is a requirement. The dots were made by an extrude which poped a cilinder and a fillet on the cilinder which, with the right radius, created a sphere.

In the free version of onshape documents are public so I think you can access mine but don't you judge me! :-).