Petrage Phoneme Translator/Cypher Wheel

To Preface: I've been working on a Conlang (constructed language) for a character of mine (named Peter) for a good amount of time now, and part of my struggles have been tying it's directional, line-based orthography (how it's written) With it's phonology (how it's spoken).

While I already had a solidified system of what symbols went to what, I still struggled to remember what went to where. This of course, wasn't helped by the fact I specifically wrote the language to be somewhat unreadable due to it being (within canon) used as an encryption method for notes left to oneself.

Anywho, The device we will create will allow one to determine the different sounds each direction corresponds to in this conlang (Petrage). While I haven't published any documents for speaking and writing in Petrage, replacing the IPA symbols that I'll be using for my design with letters in the alphabet allows you to make your own cypher for english phrases!

1. Any 3D Printing Software (I'm using Onshape)
2. At least 250 grams PLA filament
3. A 3D printer with a printing plate larger than 6x6 inches, and a compatible slicer program (I am using my school's Bambu A1, with Bambu Studio
4. Glue (optional)

This might change depending on the software you're using, but in Onshape, you'd press this button here and a dialogue will open asking you to name the document you intend to create-- I'll be naming this one "Petrage Wheel ENG" for this case.

In your CAD software, Open a sketch, We will extrude this upward later down the line.

We'll be creating the sketch on the left, though this is a little messy so let me clarify the process.

1. Start with a Circle that is 6 inches in diameter.
2. Using the offset tool, create circles that are 0.1 inches and 0.12 inches smaller than this outer circle
3. Now Create two Inscribed Polygons that are based on a 2 inch diameter circle and a 3.5 inch diameter circle each. These should be the same direction, and one edge should be horizontal. Set the inside one to be solid lines and the outside to be construction lines.
4. Using the line tool, trace a line as seen in the pattern above: you can do this entirely manually or create one "arm" of the line and use a radial pattern to repeat it around- if using the radial pattern, Create 6 arms then delete one of them.
5. Use the slot tool on each of the lines to create a slot that is 0.5 inches offset from this line

First Extrude the outer rim by 1 inch, then extrude everything in this sketch except for the outer rim and the inside of the slot by 0.2 inches

I've done this on multiple sketches, but really this could also be done as an extension of the first sketch, Adjust as necessary.

Create a 1- Inch circle centered on the origin, and a 0.5 inch centered around the origin. On both circles, create a circle offset by 0.2 inches outside of the circle. Extrude the 1 inch circle and everything inside upward by 0.7 and the 0.5 inch circle by an additional 0.2 inches. This should create a shaft in the center of the plate.

Lastly, Using arcs centered around the origin, model out the holes as seen on the third sketch- these will function as the display of the device.

1. I did this with an extra sketch and a "remove" extrude.
2. I made this sketch's plane the surface of the front plate, You don't necessarily need to do it this way.

Finally, with the same sketch you made the holes with. add a Square and circle symbol for the bottom holes, and I and II for the left and right holes.

The Back plate can be modeled with the front plate's sketches, It should fit inside the outer rim and be 0.2 inches thick- leave a hole for 0.2 inches clearance from both the outer edge and the inner edge.

1. Leaving a hole in this case can be either using a remove extrude from a previous sketch, or simply not extruding out where the hole is supposed to be.

The dial handle can be made in two parts. It should be 0.8 inches diameter on the inner shaft, and the ends of the handles should be 1 inch diameter. leave a hole to fit the two parts of the dial together about 0.3 inches to fit. each handle part should also be 1 inch tall-

I did this with circles extruded upwards (see the sketch in this step) , but it's probably smarter to create a side-profile of the two dial parts and revolve.

After Extruding a new circle, with the same outer diameter of the back plate, and an inner diameter of 1.02 inches, Create The Sketch on the left seen above (Ignore the slot, we will get to it- I've done things in the wrong order) The sketch above has points constrained to the edges of the Front plate's holes, I've highlighted the sketch those holes are based on to make this easier. It should be 0.8 inches thick.

For the text boxes in onshape, they are created with automatic horizontal constraints, you will have to remove these to fit them- While most characters fit in at 0.4 inches, some don't- use your own judgement when sizing characters (I shortened some to 3.5)

If you intend to make one identical to mine, you can use these characters from the International Phonetic Alphabet and my photo of the final print of the text wheel. /i//u//æ//ɑ//p//t//k//m//ɲ//ŋ//ʙ//r//v//θ//ð//z//x//j//!//ʄ//ɕ//t͡ɕ//ʑ//d͡ʑ//?*/

*Note: ? isn't actually on the IPA chart. Phonetically, this represents a short whistle.

Otherwise, if you're making a cypher in the English alphabet, your keyboard should work fine.

Once you've made the text, Remove extrude them about 0.4 inches into the wheel.

After inserting the text into all but one of the "branches" (the one that will intersect with the dial handle slot), Create the sketch for the slot, making sure it aligns with the channels created for the dial handle on the front plate by constraining the point highlighted in red to a line in the front structure. Remove Extrude the slot and make sure it fits all the way through the hole.

This is probably the simplest part:

Once you've modeled everything out, Export it as an STL (or whatever your printer's slicer supports) file and place it into your Printer's slicer. After slicing the File, export the Gcode/3mf and send that file to your 3D printer for said print.

If you actually didn't want to model any of that (sorry for putting it at the end), you can still get my STL files here, though this is only the Petrage text version.

After printing out all the parts, Simply put them all together, stacking them together as seen in the photos above.