Before Re-Engineering The New Hornady LNL Alpha Mark 7 Case Feeder Ramp Guide, I found a working option on the web and used his design as a basis for my own. I also tried a multitude of additional designs but ultimately came back to his design as the starting point. I would like to give credit here to Horsti Vesselikäinen https://www.thingiverse.com/thing:3173334 for his original design SHOWN HERE!
Although his design worked, I was only able to achieve about an 80% run rate without a jam. So I decided to design and engineer my own. I started laser measuring the original Hornady LNL case feeder bucket that holds the cases and 3d modeled the original bucket using Autodesk Inventor.
After obtaining the exact dimensions of the bucket, I built the ramp and body assembly using the precise compound angles and contours. The ramp’s solid design was directly derived from all the actual dimensions and compound angles of the bucket.
I then subtracted the ramp assembly from the bucket model. After separating the ramp, I added holes and attached the removable flexible tip. When installed, the final ramp fits nearly perfectly onto the bucket. The flexible tip rides directly in the fillet of the bucket, ensuring an ideal and optimal position for the 9 mm cases to keep moving along smoothly. The final ramp design and its location inside the bucket provide optimal placement for cases to fall into the holes in the plate and be directed to the output feeder tube. The nearly indestructible flexible polyurethane tip never snags on any of the cases, remains intact, and maintains its static location.
Here is the new design of the final ramp guide with the flexible tip attached and new optional mounting holes, sitting inside the feeder bucket. If you are ready to purchase, click here to visit the product page!
