SLA housing for a handheld diagnostic device
A painted, drop-tested housing for a user trial — internal ribs at 0.8 mm, four units in 4 days.
What made this part difficult
The device team needed four housings for a usability trial before the injection mould was cut. The housing had 0.8 mm internal ribs, a recessed display window and a painted outer surface that had to match the production colour. Machining was ruled out by the internal geometry; a mould was eight weeks away.
Three changes that made it repeatable
- 01
Printed in a PC-like SLA resin at 0.05 mm layers, oriented so the cosmetic face carried no support marks and the ribs ran in the stronger direction.
- 02
Trial-fitted the PCB, gasket and display window before finishing, then adjusted two boss heights by 0.2 mm in the second build.
- 03
Primed, painted to the customer’s RAL reference and clear-coated, with the paint build kept under 60 µm so the display window still seated.
Measured, not claimed
printed, finished and delivered in time for the scheduled trial.
on the PCB mounting bosses — enough for a repeatable board fit.
internal rib thickness printed without a support mark on the outer face.
Measured on a calibrated CMM at 20 °C. The inspection report shipped with the parts.
Project gallery
