Hello,
my name is Samuel, I am a mechanical designer located in Montreal, Canada. I stumbled on your project by coincidence - as you might notice, I do not have a provider rating because I am just starting to use Freelancer to find freelance work, however, I have been a Freelance member for many years and have hired more than 20 providers over the years. My employer rating is 5/5.
Your project seems to be right up my alley. I have a mechanical engineer bachelor degree, with a specialization in Design & Manufacturing. I am also member of the Order of Engineers of Quebec (Canada), which regulates all engineering activity, and among many other roles, enforces continuous professional development.
With this said, I have personally designed many industrial machines (in Solidworks) over the past few years. These machines have been built and are currently in operation at the customer's location (Canada & USA). I am employed as a designer at Claret Canada - we specialize in the design and in-house manufacturing of automation machines, robotics, and industrial equipment.
I did not know what a railgate was, but after looking it up I am confident this is something I can do.
I have a limited number of characters that I cannot exceed, so this message is limited. I hope you can reply to my offer, and we can discuss further. I can assist you with design, modeling (3D part), prototyping, testing, and even production as we build everything in our in-house machine shop.
Let's discuss!