Frequently Asked Questions . . . FAQ
The best customers are the ones that ask questions. So, along with all the articles in the The Mechanic’s Post, here are several answers to some common questions.
We understand that many questions are specific, and some answers just spon more questions. If that’s the case, please Contact Us, and let’s talk about it.
- Cost of raw materials change all the time. For instance, steel prices fluctuate with markets and world demand. We can't guess what the cost is for you.
- The plans have options. The options you choose will certainly affect the cost.
- There are many levels of components. If you buy cheaper parts, it will obviously cost less than if higher-end products are purchased.
- Some people have access to deals or even some free parts or materials. We don't know what discounts you might negotiate in the purchase process. Always ask for a discount.
First, the plans are fully engineered at Synthesis Engineering Services, and products made from them will perform as stated -- when built as defined with proper materials, skill, and care in construction. Because materials, component choices, and construction skill are beyond our control, we cannot provide an advance certification.
Second, in most jurisdictions, certification comes after construction is complete -- when the trailer is inspected for road worthiness and adherence to local laws (axles, tires, lighting, wiring, chains, etc.). They inspect the actual trailer, not the plans. The trailer is "Certified For Highway Use" by the inspector.
Side Note: For tiny houses, we recommend that you do the trailer inspection and get it licensed before you build the house on it.In summary, the plans do not have a DOT or other government certification, because your build quality, your options and components will all go into the final inspection. That inspection, for most jurisdictions, is the point of certification. Build the trailer well, and you won't have any trouble with inspection.
There are issues with CAD files not immediately apparent. The most important --What CAD to provide? DXF's of the drawings? 3D's maybe? But in what software? And for what version? Are we responsible if files don't load properly in your CAD? Sure, translations like IGES or STEP usually work, but not always, and not in every system. What settings do we use for translation?
Then, the paradigm issues. Which plans options do we include? What options do we leave out? Or, What if we don't use the parts you'd choose? Or detail the purchase parts in a comprehensive way you want? (Axles, hitches, lights, wheels, etc..)
We decided a long time ago that we're not going there. I'm sorry, we don't sell the CAD files.
What we do offer are the best plans available -- with lots of details and options -- including both drawings and instructions. They come in PDF, which is readily viewed with Adobe reader. Other readers usually work too, but we know they open with Adobe, and that's free for everyone.
Best of luck with your project.
- We do specify certain materials, but there are also material options. Choices change the weight.
- The plans have options. The options you choose will certainly affect the weight.
- Most of the plans descriptions have a weight range for the base trailer. That gives some idea, but again, see the two points above.
Axles in the Trailer PlansAxle sizes with details to order the correct parts are contained in each set of trailer plans. Most plans have options for straight axles or drop style. Some plans also have options for capacity, so the axle differences are explained for available option. If available, torsion axle specifics are in the plans as well. If you have any questions while building your trailer, please ask.
These terms, "Overslung" and "Underslung", are descriptions of how springs are attached an axle. Basically it's attaching the springs above (over) the axle or below (under) the axle.
Usually these words reference leaf springs, but the they also apply to some other styles. For pictures and a much more complete explanation, read the post on Overslung and Underslung axle springs.
- A 2000# up to 4200# version. (Capacity set by the twin axles combined capacity.)
- A 5000# up to 8000# version. (Capacity set by the twin axles combined capacity.)
Questions are good, and we’re listening. Please feel free to ask them by visiting our Contact Us page, and we’ll respond as quickly as practical.
Also, if you have something to contribute, we’d love the input. Again, use the contact page, or leave a comment below one of the articles, or submit on our Customer Stories Submission page.
Thank you for visiting.