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Have questions about the plans?  Or just want to know more?  Try these articles.  Your success is important, because it’s so satisfying to complete a project, then enjoy the fruits of your effort.  Check out these articles for good plans info about the DIY plans we offer.  You can also find answers on the Frequently Asked Questions page.  It’s all here to help make your project great!  –  See all the Mechanic’s Posts here.

Engineering in an I-Beam Trolley for a Gantry Crane

What do you know about an I-Beam trolley?  They are usually a pretty simple device with 4 wheels and a hook bar.  There is not a lot to them – right?

Engineering of Gooseneck Trailers

What is the attraction to gooseneck trailers?  We see them most often on larger, heavy duty applications.  Yet, other than the hitch location, are they really any different than a bumper-pull trailer?

Versions of Trailer Frame Around The Wheels

Trailer frames typically fall into one of three styles:  – 1) Wheels outboard of the trailer frame;  2) Trailer frame side extension around the wheels;  or  3) Trailer deck over the wheels.  These 3 are in the image above, left to right.

Car Haulers as Drive-Over Fender Trailers

A typical car hauler does not serve the hard-core 4×4’s and wide stance vehicles very well.  Certainly removable fenders help, but we can go one step farther.  Drive-Over Fender Trailers are a game changer for loading and transporting wide stance vehicles.  So, by request,

JTP Trailer Parts Kit

Announcing TRAILER PARTS KITS for the Mechanical Elements Trailer Plans!  On their way for you! Certainly, having all the right parts can make the start of your trailer building project easier.

30' Tiny House Trailer Design

What can we do to make the best Tiny House Trailer design even better?  That is not a simple task, because it is already fantastic.  Yet, we do have many years of feedback from our most excellent customers!  So, here are the details of how we make the best even better.

Build and Offroad Trailer

A good question from some of our customers:  “I want to build an offroad trailer, but I can’t to find the right trailer plans.  Is it better to buy the 4 x 6.5 – 2500# Off-Road Trailer Plans, then enlarge it, or to buy a utility trailer plan and beef it up?“

Chain Anchor on Tongue

Free Plans for an adjustably permanent Trailer Safety Chain Anchor system.  It is easy to build, easy to install, absolutely solid, yet it allows chain length adjustments fairly easy.  The goal is making the trailer safety chains very secure, while also

Attach Chains Free Plans

We often joke about safety – Yup, Safety 3rd.  While it is fun to joke, there are a few things we do get quite serious about.  How to attach chains for trailer safety is one.  Today we are looking at connecting chains on the trailer tongue, so the chain is the right length.

Torsion Axle Conversion Plans

By far, the most common trailer suspension is leaf springs.  They are cheap, straightforward, easy to repair and a bunch of other things.  That said, there are definitely benefits in other suspension styles, too.  Torsion is the 2nd most common with