It's time to hang decorations on the christmas tree, why not hanging a usefull ball: a tippe-top...
I wanted to design an easy to print, ready to play tippe-top; here it is:
- direct print the body, remove the included one layer bed
- print the spindle (octogonal, horizontaly printed one)
- trim the hole inside the body
- gently round the tip of the spindle
- plug it into the body
- gently sand the bottom on the body
run it !
If you want to see it tippe-toping, just click here :
Should you need some information on the simplified theory on how it works, just go here: http://www.fysikbasen.dk/English.php?page=Vis&id=79
I print it on my delta aerostock: direct print on glass using 1.7mm PLA
- hot end nozzle diameter = 0.5 mm
- layer thickness = 0.2 mm
- sliced with sli3r: 2 external perimeters, fill density 60%
Use the same parameters for the body and the spindle
The body includes a 0.2mm hight bed (single layer bed to keep the piece well stuck on the glass. Once printed, simply peal it with your fingers.
If your printer is well calibrated, you will not need a lot of sanding. Only the bottom on the body needs to be rounded and gently flattened to remove the last layer final drop !
Use a drill tip to trim the internal hole (6 mm)
gently sharp the spindle at one tip (insert it inside a drill chuck and sand it)
gently round the other tip to remove the octogonal shape.
Then plug the spindle in force inside the hole, you should not need glue...
It's ready to run. If the top does not tippe-top, then increase the sanding at the bottom.