A11844
The telegraph
Washington to Baltimore: the first long-distance telegraph line opens with “What hath God wrought.”
Desktop beta · Mac / Windows / Linux
Type the run.
The drawing follows.
Ohmstead turns a grid of From → To rows into a routed, color-coded wiring diagram with terminal strips, a wire schedule and an 11×17 drawing set.
PP-1 Pump panel · Ohmstead
FromToSignal
1844
Every panel print stands on 180 years of people drawing wires.
Linemen strung the telegraph across the frontier. Draftsmen inked switches for the patent office. Panel builders drew relay ladders by hand. Ohmstead is the next tool in that line.
A21882
Pearl Street
Edison's Pearl Street Station lights lower Manhattan from one central plant.
A31880s
The patent sheet
Inventors ink every terminal by hand, Fig. 1 through Fig. 9, to the patent office's rules.
A41968
Relay to PLC
The programmable controller replaces walls of relays. The ladder diagram survives.
A52026
Ohmstead
Type the run. The drawing follows.
How it works
Four things it does
before lunch.
01 → Signals
Every wire knows what it carries.
Pick a signal type and the wire takes its color on screen and its IEC code on paper. NFPA 79 practice out of the box; add your own.
02 → Terminal strips
Fan-outs become strips. One click.
A terminal takes one wire. Land four on it and Ohmstead offers Fix all: a jumpered strip, TB1, with every branch on its own terminal.
03 → Connectors & cables
Plugs that won't mate get caught on screen.
One row per cable maps every pin. Gender, keying and pin count are checked before anything is crimped.
U1:X1
B1:X1
✓ W1 mates: female ↔ male, keying A, 3 pins
04 → The drawing set
Print an 11×17 set worth signing.
Zone border, title block, sheet references and a full wire schedule. Black and white, the way a print should be.
123456
OHMSTEADDwgPP-1RevASheet1 of 6
Private beta
Send word.
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Testers are let in a few at a time. Leave your address and we'll send an installer for Mac, Windows or Linux when a spot opens.