I found a servo shaft that came with the kit. Looks 3d printed. No idea how I'll stick it to the arm though.
Sorry, didn't see this until now. Thanks, I just drilled and tapped the RF stalk as mentioned and tightened it against the shaft. The grub screw is an Allen set screw, this is a term used in my RC cars manuals and I used it.Looks good. It took a good bit of searching to find these servo shaft extensions, I'm glad it worked out for you. What you are calling a "grub screw" I refer to it as a "Allen Set Screw"
Did you just drill and tap the range finder, or did you drill into the shaft extension and thread it also?
Does the Black Tusk tutorial help any? You should be able to put a screw through the extension and attach it to the servo. From there glue the other end of the extension to the RF stalk.It's a Black Tusk one (Hitec HS-77B servo) and a hollow Machinecraft stalk, but it's attaching the servo to the stalk. Done various sorts of configurations trying to stick them together and nothing's worked. This might work, but I'm not sure on some of the terminology here and I can't get the shaft in the UK.
So I guess it's get a shaft, get grub screws (?), drill up rangefinder hole and shaft and insert grub screw, and hope it fits the servo?
Edit: They want 55 DOLLARS to send a 5 dollar shaft to the UK! Are they hand-delivering it? Scratch that method. I'll just stick a nut and bolt on it and have it static.
You are correct if you elected to do the set screw method. Below ZN and myself tried to explain more in detail how to attach the stalk baseHvacdon, I'd need to drill a bigger hole in the stalk as well which won't be easy... And get the tread in there. I think my father-in-law has the tools. I need to check with Machinecraft if I can drill into the stalk.
I did the same with my RS lid when installing my salamader king servo . I was really reluctant however when I noticed the screen used helmets had s big hole it didn't seem so drasticwish I had found this before cutting into my RS helmet to make a deep well for a circular servo arm. I still have the old ASOK ear piece i can replace it with if need to go back (he sent all 3 pieces years ago for my Sgt Fang helmet which already had top half of right ear cast). No one at any hobby shop or even the RC Car track/superstore mentioned "servo shaft."
I am having a completely different servo problem now, so I am gonna start a new thread to look for advice so it will be searchable in the future.