Tripod Jack Feasibility & CAD Review

Phase 1 only: 30–60 minute preliminary mechanical review of my patented tripod vehicle jack concept called StepJack.

I need a mechanical engineer or prototype engineer to look at one concept image and the written description, then identify the top load-path risks, manufacturability concerns, and next prototype steps.

StepJack is a foot-operated 120° three-leg tripod vehicle jack intended to lift one vehicle corner for roadside tire service, similar to an OEM scissor jack, but with less hand cranking and less kneeling.

The design includes a true three-leg tripod base, rear leg opposite the foot pedal, Acme screw lift, ratchet-and-pawl foot pedal drive, U-channel pinch-weld saddle, anti-spread struts, and compact central hub. It may also include an optional piston/hydraulic assist through one tripod leg to assist the ratchet/pawl action and reduce pedal effort.

For this first milestone, I only need:
1. Top 5 mechanical/load-path risks.
2. Main manufacturability concerns.
3. Thoughts on realistic corner-lift capacity compared to OEM scissor jacks.
4. Recommended next prototype steps.
5. A short written red-flag review.

No full CAD, no FEA, no production drawings, and no finished prototype are required for this first phase.