Three small parts that make the other parts usable: a scale rule for photographs, a sample card that shows at which wall thickness a filament stops being translucent, and dividers with tabs for sorting boxes.
None of them is a product. All three are the difference between a printed part and a printed part somebody understands.
| Scale rule | A printed ruler to lay beside a part in a photograph. Ticks every 5 mm, longer every 10, longest every 50, numbered in dot type. Nothing sells a printed part like a scale next to it. |
| Sample card | Four thickness steps from 0.4 to 1.6 mm. Hold it against the light and you see at which wall thickness that particular filament stops being translucent. Print it with the very spool it describes. |
| Divider with tab | For sorting boxes and card files. The areas beside the tab are really cut away, not covered with a thin skin, so several dividers with tabs in different positions stack readably. |
Because a printed part with no reference in the photograph could be any size, and a customer who cannot judge the size does not order. The scale rule costs two grams and answers the question before it is asked.
The sample card answers a different one: how thick does this colour have to be before it covers? That is a property of the spool, not of the material, and the only honest way to know it is to print it.
All three print flat without supports. For the scale rule, use a colour that contrasts with the parts you photograph – a black rule beside a black die helps nobody – or fill the ticks with paint and wipe the surface.
For dividers, the tab is only as strong as the layer bond when printed flat. On thin dividers go 0.2 mm thicker than feels necessary.
This page carries the essentials. The detailed sheet is in German: documentation. Every control here is a number, a slider or a choice, and the German page uses the same order.