Telescopic slide flute D5-C7 range and even more!

This is a slide flute with telescopic mechanism, it has D5-C7 plus more with overtones, upto C8 works well.
Low notes are very soft, it can be blown harder for overtones, especially lower ones get around 4-5 overtones.

WARNING:
High notes especially with overtones is EXTREMELY LOUD! Hadn't measured yet, but it's around 100-110db loudness, put headphone or something if blowing hard!

For the fipple i don't remember which one i took, once i find it will give credit to the owner.

To build it:
1) Print all the parts, optionally put support on fipple-handle part. Use soft PETG or ABS, harder PETG and PLA slides harder, but also don't do with TPU it may not slide properly. For fipple-handle PLA is ok too.
2) Assemble the 7 tubes and 8th tube with handle into telescope, don't put the fipple yet (or else can test but don't glue permanently yet).
3) Glue the rings one by one on top of each tube while assembled as telescope. This is essential to make sure it doesn't break apart while playing, start from the largest. There are 6 rings and 8 tubes, first and last tubes don't need a ring. Recommended to glue with dichloromethane which melts many of the 3d printed plastics, or acetone if printed with ABS. While gluing be careful to not accidentally glue tubes together, only each ring on top of the tube, while putting the ring you'll need to press a little for fitting so you'll know when it goes well.
4) Check to make sure the telescope works well, it doesn't break apart and all tubes move well.
5) Finally fit the fipple-handle and optionally glue it.

There are known issues:
1) Generally it's tedious and need hand precision to assemble.
2) When sliding it sometimes gets stuck but with movement will get free.
3) Lowest notes hard to play, need to blow softly and carefully for good sound and not to jump at next overtone.

See the attached images during assembly steps and the videos playing it, also along with kazoo and other instruments!

https://www.youtube.com/watch?v=_xYc_tuZ0nQ
https://www.youtube.com/watch?v=w20eW8yboxA&list=PLUxywlky1TRpR5Dkh0jcBo12qTimT6Rct&index=2
https://www.youtube.com/watch?v=XOovAW4EF74&list=PLUxywlky1TRpR5Dkh0jcBo12qTimT6Rct&index=3
https://www.youtube.com/watch?v=_gRN8scjX1s&list=PLUxywlky1TRpR5Dkh0jcBo12qTimT6Rct&index=8