B3D

Design for production.

Manufacturing has changed, and 3D printing needs its own kind of drawing. A part modelled for a machine shop rarely prints well, and a part modelled for a printer rarely needs one.

Print time is the driving factor. Every design decision either adds hours to the plate or takes them off, and that is what a part costs. Projects run through slicing software and our own estimating calculator before anyone quotes a price.

What gets decided first

Built to assemble

The first question on every part is whether it can be printed on a flat surface or needs to be assembled. Splitting a part often cuts print time and material.

Clean surfaces

In an ideal print, no support material is used at all — no waste to strip off, and a clean face everywhere it matters.

Holes that fit

Cavities and holes are drawn to come out round and to size, rather than ovalled by the printer and cleaned up afterwards.

Threads that last

Screws driven into plastic strip. Stainless inserts give real threads that take being undone and done up again.

How a project runs

Feasibility

Can it be printed at all, and should it be? Sometimes the answer is that machining or molding is cheaper.

Redraw

The part is redrawn to print — split where it helps, flat where it can be, supports designed out.

Hardware

Stainless inserts, fasteners and bearings specified and pocketed into the model.

Material

Chosen against service temperature, UV exposure and load, not against colour.

First article

One part printed and checked against the thing it has to fit before anything runs.

Production

Plated for throughput and run. One unit or a thousand, same model.

Materials we build in

MaterialBest forService temp
PETGEnclosures, brackets, general product parts~75 °C
ASAAnything that lives outdoors — UV stable~95 °C
ABSHousings that get bonded, smoothed or painted~95 °C
PC blendLoad-bearing brackets, high heat~110 °C
PA12 nylonGears, wear surfaces, living hinges~100 °C
PA-CFStructural parts standing in for aluminum~130 °C
TPU 95AGaskets, bumpers, feet, grips~80 °C
Tough PLAJigs, fixtures, cost-sensitive indoor volume~55 °C

Hardware is stainless unless there is a reason otherwise. Finishing covers insert installation, deburring, bonding, assembly, tumbling, painting and vapour smoothing. Full filament properties are on the FDM materials page.

Rates

Consultation is free for the first ten minutes — usually enough to know whether a part can be made and roughly what it will cost. Design is $200/hr USD plus printing.