Popular stencils
Math symbols
A few math symbols, readily available.
Synology Expansion Units
Synology NAS appliance expansion units. Certain models of the Synology NAS can be further expanded with this units. v0.99 initial version v1.00 cleanup - added RX1214RP v1.01 12.03.2015 - added RX415, DX1215
Network Buses
Some common network buses. For those with connectors, e.g. the cylindrical Ethernet Bus, click on the connector line (no double or triple clicking) until you get the green connector icon, then drag that green connector end to the device you want to connect to. Alternatively, you can connect any lines to the magnetic points on...more
Feature Diagrams
Feature Diagram stencil, notation based on the book "Generative Programming" by K. Czarnecki and U.W. Eisenecker. Updated, version 2 improves quality (circles do no longer overlap connected boxes).
Floorplans: Plumbing Fixtures
A handy collection of plumbing fixtures for laying out basic floorplans.
Tango Actions
Tango icon library actions symbols
Road Map
Handy for creating directions. Road sign shields were modified from originals at the Wikimedia Commons.
Cisco ASA Series
Here are the Cisco ASA 5500 and 5800 series stencils. Haven't got around doing the modules yet.
Seven layer pyramid diagram
Pyramid diagrams are used to express hierarchy. The diagram looks like a triangle that is sliced along the y-axis and parallel to the x-axis. You can enter text into each layer of the pyramid. If need be, you can delete the wider layers, to create a smaller pyramid.