Recent content by IdBdan

Another quagmire in this trailer! I have a max deck height restriction and that 8" member just squeaks by. The Trike has a very low 'break over' angle. (3.5" road clearance) Long story short, every inch up gives me an exponentiation add to ramp length and the need for over 25' of load space to...

What a great reference! Thanks. With all the engineering notations defined (that was my pitfall) it's a simple matter of putting "square block in square hole" and do the math. I'll be using that reference a lot. I've been reviewing my material list and I need 1/2" x 3 1/2" plate for my tongue...

The only reason I'm building this myself is because it has been impossible to find a manufacturer to build it. Tried for 3 months. Searched the entire east coast from New jersey to Florida. Even the custom trailer builders won't build it because they have so much standard work they don't need...

"The M.o.I is for the C channel that you specified( 8x 3.25x.41x.25)." The channel is a 3.75 flange not 3.25. Supplier sent standard spec's on 6061 T6 Architectural Structural. I also used this link for 6061 T6 spec's. ASM Spec's I used a online calculator online for MoI. (I think I'll buy...

Thanks! Can't tell you how much I appreciate your time on this. And I agree that anything you're helping me with is totally and unquestionably hypothetical. One last question. In your 'parameters', is the M.o.i. (46.13) what I need to exceed or is that the M.o.i of the member you tested? The...

I'm using tandem 3.5k torsion axles at 22.5 degree down. They are mounted directly to the frame and better than leaf springs when it comes to reducing flex and stiffening the frame. They eliminate bounce typically caused by standard leaf spring axles. They are also independent of each other and...

Sorry for the confusion. You had mentioned half load in a prior post and I thought you were treating the frame 'per side'. The (down arrows) 720 / 690 / 650 figures are the weights and locations I used to calculate the axle location and the tongue weight. I thought they would apply. I've made...

Thanks for taking your time to do this! I've attached a PDF for a better look at the loading. My objective was to use rectangular tube. Either 2x5x.25 or 2x6x.25 (6061 T6). The 8" channel was what fit the load numbers I came up with while 'fumbling' my way through this design. It's not a good...

It does now that I look at it. lol It's a Can Am. Conventional trikes steer one wheel. The Ryker puts the two wheels up front for steering.

That was the toughest part of the design. Running multiple scenarios of loading and finding the the right match for a 10 to 15% tongue weight. https://www.engineersedge.com/calculators/trailer-weight-balance.htm I designed this trailer for my motor home. I want my boats when I travel and I need...

Thank you very much. I apologize that you went to that much effort. I took a shot at completing that calc but it's beyond my abilities. I've called a few local engineers to see if I could pay them to size the beam for me. No seal, just a verbal recommendation with no liability. They were...

I'm curious why no one can answer my question? Did I do something wrong here?

They would give you 'uncontrollable' pitch. Your motors will need to be counter rotating. Hold a motor by its shaft and the body spins. Hold a motor by its body and the shaft spins. Now take friction away from both pin points?? Counter rotation control would be lost as soon as you increase one...

A note about the wealth of information on the Internet. "You're not the first one to ask that question, look for the fix, or do the math." It always takes a bit of self education to use, which I enjoy, but I like it when an online calculator does the math. Quickly engineering my Tinker projects...

Addressing the flight effects on your calculation. The size of your UAV is small but these are some items you need to consider. You're missing torsional considerations in that beam design. Baluncore put it correctly when he/she said "For a static analysis". The loading on that beam will never...