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Mechanical

2022 Sole Builder
SolidWorksFEAWelding (TIG)
Figure 0 · Exploded view
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01 / Problem

Problem

Convert a retired ride-on lawn mower into a working snow plow on a near-zero budget, learning the metal-fabrication and small-engine repair skills along the way. Constraints: no welding shop access beyond a borrowed TIG setup, no replacement parts catalog for the mower model, single-person operation.

Figure 1. Figure 1. Power-flow block diagram — manual hydraulic ram drives the blade pitch.
02 / Approach

Approach

Three subsystems: a fabricated steel blade and mount, a rebuilt steering linkage on the mower chassis, and a hand-fabricated brass carburetor pickup since the original was unobtainable. I designed the blade and mount in SolidWorks first so I could pre-cut all four uprights to spec on the plasma cutter before any welding.

QtyPart
11/4 inch mild steel plate
41.5 inch square tubing
1Manual hydraulic ram
1Retired ride-on mower chassis
1Custom carburetor pickup
Figure 2. Figure 2. BOM — half a dozen parts, every one a deliberate trade-off against time and budget.
03 / Implementation

Implementation

Quarter-inch mild steel plate for the blade, 1.5 inch square tubing for the frame. TIG welds throughout, with sandblasting between fit-up passes to keep surfaces clean. The blade pitches via a manual hydraulic ram — kept manual on purpose because powering it would have required a take-off on the engine I did not want to compromise.

04 / Results

Results

The system cleared 6+ inches of snow off a 30 m driveway repeatedly. The fabricated brass carburetor part outlasted a normal season of use.

05 / Lessons

Lessons

This was my best teacher on the difference between "designed for assembly" and "designed for fabrication on a borrowed tool with one set of hands." The pre-cut-then-weld sequence cut my build time roughly in half versus the cut-and-fit-on-the-fly approach I started with.

Gallery

Snow-plow fabrication jig — welded steel plates/rails on a workbench.
TIG welding close-up — arc and sparks during weld with gloves/clamps visible.