This file package includes the following STL files: 
 
Linkage Horns for 1/8" shafts (large)
LInkage Horns for 1/16" shafts (small)
Control Yokes for 1/8" shafts (large)
Control Yokes for 1/16" shafts (small)
 
These are NOT designed to be utilized as they'll come out of your printer. You need to source and install Dubro plated wheel collars. These are commonly available. Here is the link to the 1/8" collars and 1/16" collars I use. 
 
These are not as strong or durable as soldered horns, but are a viable alternative in many cases. I recommend printing in high strength filament such as ASA-CF and ABS-GF for rigidity. Printing in standard filaments will not likely result in an ideal product. 
 
View the assembly video here.