I did it.
After months of designing, machining, tapping, threading, soldering,
troubleshooting, reworking, fretting, printing, fixing printers, testing, and
fretting (yeah, it's in there twice). I've finally boxed up the first two Delta
Throttles
[https://www.etsy.com/listing/243387070/custom-aluminum-delta-throttle?ref=shop_home_active_8]