Parametric Trumpet Mouthpiece

by beak90, published

Parametric Trumpet Mouthpiece by beak90 May 5, 2010
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This is a mouthpiece for a trumpet. I designed it with the idea that mouthpieces are expensive and with a 3D printer you can make any type you want for about a buck.

I designed the openSCAD file to be easy to modify. It should be pretty self explanatory. It has a list of the points that make up the side view of the mouthpiece. This makes it fairly easy to add in new types of mouthpieces.

So far I have only made 3 types of mouthpieces, but I plan to make more soon. 2 of the mouthpieces are from Marcinkiewicz (the 4/7c and the 3/5c). The other is from Bach (the 3C). You can see information on the Marcinkiewicz mouthpieces and their other trumpet mouthpieces here: http://www.marcinkiewicz.com/mouthpieces/trumpet/standard.htm
For information on the Bach mouthpiece see the PDF here: http://www.bachbrass.com/mouthpieces/

Keep in mind that this is still very experimental. It might not work well as a mouthpiece because of certain technical problems with 3D printing.

  • New in v1.1 - Optional Inverting of the mouthpiece for easier printing on a Makerbot or RepRap. Optional Add of support structures to allow small layers to cool enough when printing.

I\'m currently working on instructions for the best way to print this on a Makerbot or a RepRap. Right now just experiment until you get the best results. If you have any tips for good settings for printing, post them here.


The openSCAD file is designed so that you can change it easily to get a different type of mouthpiece. To change mouthpiece types, just change the \"type\" variable at the top to one of the types listed in the file. Then export as an stl and print. To change other settings, see the comments in the file. Other settings are controlled by either a \"true\" or a \"false\".

Alternately, download the stl file included in this thing. Just the Marcinkiewicz 4/7c is included as an stl. It also has support structures on it and it is inverted for easier printing.

The finished object may require some sanding and maybe a finish for a smooth airtight mouthpiece. Make sure you print this with very high infill and watertight settings. You might want to print with complete infill and then sand down the interior to get more of a cup shape. The file here is just a \"V\" type cup so that you can make the cup any shape you want after printing.

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I am wanting to have a go at designing and making a couple myself
I have a cnc lathe and a UPBOX 3d printer which I want to experiment on
I was wondering if there was a website or a list of the sizes of indentations etcetera so that I can!design and print my own versions

where is the 7c
i really want one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

is there a 3c if so PLZZ give me a download link THANKS!!

I was planning on making some parametric trumpet mouthpieces of my own, but I guess you beat me to it! Great work, by the way. I'll print the Bach when I get a chance and try it out. I'm sure it'll have to be sanded down to make it comfortable. Since I use PLA and don't use a raft, maybe I can print it upside-down to get a smooth finish. This is really cool to me!

Thanks! I'm glad someone has a use for it! I'm going to print it soon. I'll try ABS first, but I'll use PLA once I receive my new nozzle assembly. I imagine it would be much less risky to print it upside down. I was thinking it might be a good idea to print it the way it's currently oriented once I add a curve to the cup because of more overhang.

I haven't found any measurements on the nets of the shape of the cup, so I figured for now its just better to shape it yourself with sand paper. Marcinkiewicz gives you all the measurements of the mouthpiece, but don't mention anything about the shape.

Just so you know, the Marcinkiewicz mouthpie
ces are similar to Bach mouthpieces. The first number in those is the Marcinkiewicz model number and the number and letter after the slash is the similar mouthpiece made by Bach. So if you want a 5C then try the 3/5C and if you want a 7C try the 4/7C.