project cheap pcb
555 Wonderbox V1
designed, assembled, and tested by hand.
sold at cost — no markup.
the story
While learning about the 555 timer I made the goal to sell a circuit for as cheap as possible. I sourced the cheapest components I could find, panelized the PCB to reduce per-unit board cost, 3D printed my own solder paste stencil instead of buying one, and hand-assembled every board myself.
The first order came without proper V-cuts, so I learned to use a CNC router and made software to cut the panels apart myself.
how it works
the design
schematic
pcb layout
select variant
shipping
shippingselect region above
cost breakdown
// pcb
// components
// packaging
// taxes
// fees
floor price$1.09
pcb24%$0.27
components20%$0.22
packaging16%$0.17
taxes8%$0.09
fees31%$0.34
click any row to see the detail. the floor is what it costs — nothing more.
choose what you pay
at cost$1.09
profit→
optional · you decide what I make$
total
$1.09checkout via stripe · secure · no account required