An attempt to construct the shock absorbing film dolly (Trolley) based on common DIY store trolleys. However whilst precision is relatively easy in CAD, in real life it is very much dependant on what tooling, materials and budgets are available. The brief was to make something cheaply as possible as the point was to save money avoiding purchasing a steadycam unit.
This meant actions like pulling plywood from skips, using wood already available, caster wheels from old furniture etc. it also means trying to make the components using home tools which included a slow crude pillar drill, flat wide drill bits, a disc belt sander, Powerfile, jigsaw and a spindle sander.
These were crude and not up to the level of precision needed, CNC, laser cutters, milling machines and better drilling equipment would very much have helps and materials like high density sikablock modelling block.