One of our customers came up with a super clean and trick fuse servo mount for the 3PK. This allows the servos to stay with the boom to make assembly and disassembly of the model easier at the field. Currently it only works with MKS HS75 servos. Text from his email serves as a nice description of the project below.
"I implemented the 3d printed version of the tailboom servo tray into the 3pk I bought from you guys and during the install I noted a few things that needed some improvement. I had the pieces 3d printed from markforged carbon via protolabs with a 20% infill. This was pretty good, but I wasn't satisfied with how stiff it was, so I milled in grooves to bond in some 1.3mm carbon rods that I had laying around from doing 2pk servo installs. I added those grooves to the stl file, and added a clearance path for the servo wires to escape from the servo wells without being pinched where the servo ears meet the tray. Also, because the octagon gets more rounded towards the back I added that feature to the file as well. Some sanding is likely still required to get a good fit so the tray extends perfectly straight from the boom. I did add an auto engagement of the MPX connector into the fuse so now I don't have to do anything to hook things up, but in my haste to finish the build I didn't retain a copy of the bulkhead I put into the fuse to hold the MPX connector, so I'll have to invent that again and this time I'll create in solidworks so that can also be a 3D printed part, and I'll share when I do. One additional note, I used wires that were much too heavy instead of using a gauge similar to what is on the HS75s, so that made the install a little ugly, but I'll rework that to clean things up. I left the standard servo connectors on so making a servo swap in the field is easy if needed and just tucked those connectors back into the boom behind the servos."
"I've been waiting to get a 3pk since they were announced and you guys did your first videos on them to see if I could put servos directly into the boom instead of in the middle section. I've come up with 2 different solutions using MKS HS75 servos that in theory will work. KST x06h should also work. I've attached the files to share with you if you want to try for yourselves, and if you are satisfied please feel free to incorporate into everyone's glider that wants this option, including Samba or modify as you see fit.
STL File Here
