Ever wanted transmission line loudspeakers, but you couldn’t take the expense, the space, or the audiophile snobbery? Hexibase to the rescue, with his miniature transmission line design for Tectonic TEBM28C10-4/A BMR drivers.
I’ve taken the original acoustic design and remixed it into an upright form that prints as one piece. The chamber volume, port cross section and port length all match the original. The only significant acoustic change is moving the exit of the port to the back of the speaker.
I’m still waiting for the drivers to be delivered, but I’ve already done did a draft print of the enclosure. So I can say it prints well, the integrated supports work, and it is possible to feed the speaker cable in through the hole at the back of the base, and through to the driver chamber.
There are stl’s with and without integrated supports, and with and without a recess in the front surface, to take a trim panel.
I suggest 3 perimeters and at least 5 bottom layers, to ensure a good seal across the roof of the chamber, which has significant bridges.
After printing, pluck out the supports, feed the cable through from the small hole in the back of the base, and then fill the hole with blue-tack or glue. Amp up and enjoy!
Note: this is a large print requiring approximately 270 x 270 print area.
Update: I’ve added a split enclosure version, which can be printed in 2 parts and glued together, allowing it to be printed on a much smaller printer.
Kudos to the man:
Fusion 360 Archive provided.
Credits:
zx82net
Download 3D models
| File | File size |
|---|---|
Audio+Stix+TL+Loudspeaker+(Hexibase+Remix)
|
9 MB |