I am a semi-professional electronic hobbyist. Normally I would draw electrical diagrams on a computer, but once in a while it can be faster to jot an idea down.
I found a very elegant stencil and was almost ready to print it out. But then I got looking at how few symbols were available, about a dozen. Nothing for resistors, inductors, switches, transistors, etc. I like to keep my designs simple, but not that simple.
What choice is there but to design your own. I was off to design my own with the common shapes you need. Best is you can combine the shapes for more elaborate components. E.g. two inductors and some lines creates a transformer. A resistor with two small arrows, gives you a photo resistor. There are lots of possibilities.
There are two stencils but the B version is better. I found that I preferred to print face down for a smooth surface. Depending on your flow, you may have to clean up some areas with an exacto knife.
The widths are 0.7mm to give a little clearance and use a 0.5mm pencil lead. You can scale up if you want. You can also print thicker by changing the z scale on your slicer.
Have fun.
The author marked this model as their own original creation.