Re: "Omni Throttle"/angled adapter
Posted: Fri Jan 07, 2022 16:57
Okay, status update.
These cables fit, but are too short. But, the ends are correct, so I'm going to cut off a couple ends, splice two together, and it should be long enough:
https://www.amazon.com/gp/product/B01IZAX8ZA
Since they arrived, I fired up the print on the Omnithrottle adapter, which is a mix of:
https://www.thingiverse.com/thing:5027171
and
https://www.thingiverse.com/thing:5170701
I went with the second body version because, as the author says, more people have M3 nuts than have M3 knurled inserts - this applies to me as well.
In the end:
It should all be put back together tonight and I'll post pictures if it's not too late after Arnold gets that pesky Predator.
These cables fit, but are too short. But, the ends are correct, so I'm going to cut off a couple ends, splice two together, and it should be long enough:
https://www.amazon.com/gp/product/B01IZAX8ZA
Since they arrived, I fired up the print on the Omnithrottle adapter, which is a mix of:
https://www.thingiverse.com/thing:5027171
and
https://www.thingiverse.com/thing:5170701
I went with the second body version because, as the author says, more people have M3 nuts than have M3 knurled inserts - this applies to me as well.
In the end:
1. I printed them out of PLA+.
2. The two printed pieces fit together via a tight enough interference fit (even after sanding, I used a vise to press them together) that no bolting is necessary. If they work loose, I'll just dribble a little acrylic solvent adhesive (SciTech weld-on is a personal favorite), but I doubt this will be necessary.
3. As mentioned above, the cables are too short - cutting and soldering is required.
4. The dimensions are slightly off - either the original models are wrong, or my printer is off, or they're compensating for a material with higher shrinkage (like ASA). Options are sanding for a precise fit (which is what I will do because they're printed) or increasing the body size slightly (to enlarge the holes) and shrinking the shaft size slightly (so it fits into the NXT base correctly - but then the screw holes might not line up with those in the base). Or you can sit there sanding and shaving for a couple of hours while watching a movie, which is what I plan to do.
It should all be put back together tonight and I'll post pictures if it's not too late after Arnold gets that pesky Predator.