u/DrHotchocolate

Finally finished some fun work on this custom bass trombone! This was a lot of time and design work, but it’s finally completed!

I made the linkages adjustable so I could tinker with the leverage. That took a reasonable amount of experimentation. I also needed to make all the levers pretty rigid so a small amount of brass flat bar helps to stop the primary arm from flexing.

You can still use and tune the F valve as if it were a standard single trigger bass.

Seems like I’ve found the short! I think some things were loose in the position sensor so cleaning, checking solders, and re-greasing should help.

Exterior shot cause it’s pretty haha.

Any input on what to do here or things I should look out for?

It’s a 3 speed automatic.

I had an issue today where when I started up this morning I saw a glow from beneath the shifter followed by some grey smoke and the smell of burnt electronics. The transmission also made some very unhappy sounds. Fluid levels are okay, and I don’t think anything is directly leaking onto the exhaust to cause smoke.

Anyone have a similar experience?