Recorder V2 (instrument)

by cymon, published

Recorder V2 (instrument) by cymon Oct 3, 2011
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Version 2.1b has been confirm as functional! Thanks nycdesigner and tbuser for sticking with me!

This is a complete rebuild of the recorder instruments with more scientific measurements and a more sound theory as well as an entirely unique and slick design.

The recorder is one of the oldest woodwind instruments. In the hands of an experienced player it creates a sound synonymous with Renaissance music. Often used in elementary music classes because of it's ease of operation. With 3D printing everyone can have one of their own to make beautiful music on... or wailing screeches if they never got past "hot crossed buns".

Ever since I've seen the whistle ( http://www.thingiverse.com/thing:1046 ) and it's variations ( http://www.thingiverse.com/thing:1046/variations ) I've wondered about the feasibility of extending it to a flute. However when I finally did decide to tackle it I ended up designing the whole thing from scratch (which is why this isn't a derivative of the whistle).

Version History:
Ver2.0 - recorderv2mouthpiece.stl + recorderv2body.stl + recorderv2foot.stl: The mouthpiece in this version is the tallest piece at about 119.3mm which is cutting it too close for a TOM.

Ver2.1a - recorderv2.1amouthpiece.stl + recorderv2.1body.stl + recorderv2foot.stl: Per input from nycdesigner and tbuser the ring around the base of the parts has been widened to increase stability during print, the mouthpiece has been altered with a shorter windway and 1mm taller window. This brings the mouthpiece to being short enough for a TOM and does not effect tuning tho it may require slightly more air to work.

Ver2.1b - recorderv2.1amouthpiece.stl + recorderv2.1body.stl + recorderv2foot.stl: Same as 2.1a except the windway now slopes towards the lip. tbuser found that worked best for his 6 hole flute ( http://www.thingiverse.com/thing:11945 ) so I've included it for experimentation.


Print the 3 parts. Put them together. Warm up the mouthpiece with your hand before playing for best sound. Blow gently.

Note that if you start with all holes covered and remove them one-by-one that the high notes are going to sound flat. That is normal. To get the proper tones for all the notes use the key chart on http://en.wikipedia.org/wiki/Recorder#Recorder_fingering .

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Thank you cymon! Very nice design, just needed to fix geometry (wholes?) in netfabb. Looks great and hope to electro-plate this with Brass in future.

It plays OK! I printed 2.1B

Some suggestions for improvements:

Longer joints between sections. The top piece fits tight enough without any glue, but needs more leeway for tuning.

Tighter foot joint: The mouthpiece/upper joint was perfect. The foot/upper joint was quite loose?

Also, something felt off with the last 2 n
otes. It seems choked, but just playable.Maybe just my inexperience with the recorder. (I'm a pretty good clarinet player, though)

Can you post a video playing the whole octave please?

AWESOME! Thx so much. I guess the TOM just can't print it as well as yours was. In addition, it's been about 30 years since I've even played a recorder ;-)

Your little suggestion has warrented huge changes. In lengthening the mouthpiece upper body joint means I need to move the joint between the body and the foot which makes the body too big so I need to break it in 2, which is actually better because it means you can adjust the pinky angle yourself, but I've been resisting.

The next version will probably be it's new derivative. When this is done EVERYONE will have a printed recorder.

Another suggestion,

If you undercut the tone holes in the lower register it supposedly improves the volume for low notes.

Also, adding a small ridge on the inside of the thumb hole will prevent condensation from darining out the hole :p

What do you mean exactly by "undercut the tone holes in the lower register"?

And a you mean to add a small ridge inside the thumb hole to prevent drainage? Can do. But will that effect the sound?

Undercutting is best shown: http://www.antiqueflutes.com/web%20photos%20and%20text/850.06.jpghttp://www.antiqueflutes.com/w...

That is an extreme example for illustration, and most modern instrument makers use a half wall thickness undercut, more like this: http://i211.photobucket.com/albums/bb205/Landru13/undercut.jpghttp://i211.photobucket.com/al...

I'm talking about a VERY small ridge around the thumb hole. I don't know if/how it will affect play fo
r sure, but I'm willing to find out. My clarinet has one so it can't be all bad ;)

The ridge has been added to Recorder v2.2.

Just to be clear you're talking about undercutting just the lower note holes? How many? The wall around the last 2 fingers are already pretty thin due to the finger grooves but I could always try.

Ya, I really don't know if just the lower or all of them. If you want to just start with the lower e-mail me the .stl and I'll see if it makes any difference.

I've got 15 rolls of ABS on the way so I'm game for some iterative design ;)

I'd like to see how it sounds when made from PLA instead of abs, too.

Anybody know if this one works yet?

There is a photo of my ver 2.1d

Oh, by the way, snagged as the thumbnail because it's so pretty.

I assume you mean 2.1b with the sloped mouthpiece. Does it play? How does it sound?

I could get a decent sound out of the second hole.

It did print well. I used a flie lightly on the male joints to assemble it.

Can not parse "out of the second hole". And confirm, you are using mouthpiece recorderv2.1b-mouthpiced-slopedwinway.stl correct?

I 'm using mouthpiece v2.1b, body v2.1 and foot v2.

Can you send one to Richard Stallman? I'll bet he'd get a kick out of receiving his favorite instrument constructed via open source technology.

It looks as if it's a gnat's eyelash too long for my TOM using the heated platform.

Well you're in luck. Version mouthpieces 2.1a and 2.1b are both TOM friendly now. Let me know if you print it and if it works for you.