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Author Topic: Electronic CAD for CamBam  (Read 2247 times)
EddyCurrent
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« on: September 20, 2018, 22:15:49 pm »

I find it comfortable to use CamBam for 2D drawing so I thought about using it for drawing up small electrical/electronic schematics. Of course other symbols could be used such as pneumatics, etc.

After some thought it seemed fonts would be a good method, so after purchasing this little software gem, https://www.cr8software.net/ I set about creating some symbols.  

Please find attached a truetype font that must be installed. Unzip it then right click the ttf file and choose, "Install". I have tried this on Windows only.

Now open the attached cb file and it should display correctly. ( I set the layer geometry to Black and the background to White )
There are layers for each type of symbol, this is purely bacause I had problems when printing and wanted to isolate the touble makers.

The test file I used was from a post linked to by David here;http://www.cambam.co.uk/forum/index.php?topic=7572.msg60874#msg60874

The font is mapped thus; (24 or 36 is a good font size )

a   bridge rectifier
b   ground
c   EL817 Photocoupler
d   4N25 Phototransistor
e   7812 voltage regulator
f   NE555 timer
g   fixed resistor
h   potentiometer
i   non-polarised capacitor
j   polarised capacitor
k   diode
l   light emitting diode
m   zener diode
n   IRF630 MOSFET
o   fuse
p   normally open switch
q   single pole double throw switch





* schematic2.jpg (55.94 KB, 1000x712 - viewed 223 times.)
* CamBamSymbols1.zip (2.88 KB - downloaded 97 times.)
* schematic.cb (52.9 KB - downloaded 103 times.)
« Last Edit: September 20, 2018, 22:18:57 pm by EddyCurrent » Logged

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dh42
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« Reply #1 on: September 20, 2018, 22:44:15 pm »

Hello

Nice !!

I just download the free version of Type light ... in the past, I tried to edit the stick fonts to add the missing chars (symbols and accented chars) with .... I don't remember the software name...  but the soft crashed all the time and I can't achieve the job ...

++
David
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onekk
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« Reply #2 on: September 20, 2018, 22:47:57 pm »

I don't remember well but there is some free Software in Linux to design fonts, as they have to be truetype if i didn't go wrong.

Very good job Eddy, nice to know just in case that it could be done in CamBam.

Regards

Carlo D.
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Carlo D. (onekk)

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Garyhlucas
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« Reply #3 on: September 20, 2018, 22:51:12 pm »

When you have only a hammer everything looks like a nail!  Except for the plant operator that didn't have a hammer. So he used a rock to smash a terminal strip so he could twist the wires together to jump out a bad part.
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Gary H. Lucas

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EddyCurrent
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« Reply #4 on: September 20, 2018, 22:53:10 pm »

Hello

Nice !!

I just download the free version of Type light . . .

++
David

I tried Type light first then after a few ales one night  Roll Eyes  purchased the full version, the price was right and it works well.
« Last Edit: September 20, 2018, 22:55:12 pm by EddyCurrent » Logged

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dave benson
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« Reply #5 on: September 21, 2018, 00:34:44 am »

HI Eddy
Works well, you must have quite a bit of time doing the symbols.
David, I was fiddling about with TTF's  some time ago now, and used FontForge, which worked ok for what i was doing
at the time. If I remember correctly it was on Sourceforge, but you could check GitHub as well.

Dave
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dh42
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« Reply #6 on: September 21, 2018, 01:07:33 am »

Quote
Works well, you must have quite a bit of time doing the symbols.

+1

A way I use sometime for electrical symbols (Relay, switch, etc) is the Library function of jeff's "file merge" plugin, combined with eddy's Group plugin.

It's not perfect, because if you load, as example, 4 NO switchs from the library, all have the same GroupXX tag, and all will be selected at the same time ; or worst when creating the symbols, different symbols can have the same GroupXX tag ... to solve this last problem, when I create a symbol, just after grouping I change the GroupXX tag with the name of the symbol, and for the first problem, I copy/paste the symbol with the "copy group" toolbar icon instead to load a new one.

http://www.atelier-des-fougeres.fr/Cambam/Aide/Plugins/FileMerge.html

I like to do scheme with CB, and the Bitmap object in the V1.0 is also very useful to show things like a CNc driver, a BoB ....

++
David

« Last Edit: September 21, 2018, 01:13:04 am by dh42 » Logged
Bubba
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« Reply #7 on: September 21, 2018, 01:53:05 am »

Eddy, it's a great idea. Couple if times in the past I have used CB to draw simple schematic to help me visualize component connections. Will try it.. definitely

Thanks.
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EddyCurrent
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« Reply #8 on: September 21, 2018, 11:34:31 am »

You might have noticed the font does not work in a word processor, this is because CamBam draws only the outline vectors.


at the time. If I remember correctly it was on Sourceforge, but you could check GitHub as well.

Dave

Dave,

I tried as many open source alternatives as I could find first but could not get results from them.

Time permitting I will add more symbols to the font attached in my first post.
« Last Edit: September 21, 2018, 11:38:46 am by EddyCurrent » Logged

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onekk
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« Reply #9 on: September 21, 2018, 16:00:17 pm »

Two project that seem mantained:

https://birdfont.org/download.php

https://fontforge.github.io/en-US/

The sourceforge TTedit is not mantained as the last release date is 2006 something.

Regards

Carlo D.
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Carlo D. (onekk)

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EddyCurrent
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« Reply #10 on: September 21, 2018, 16:39:32 pm »

Carlo,

Thank you, I tried both of those first but did not like either.
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Garyhlucas
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« Reply #11 on: September 21, 2018, 17:50:37 pm »

So now we can engrave a schematic on a surface?
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Gary H. Lucas

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EddyCurrent
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« Reply #12 on: September 21, 2018, 18:08:11 pm »

So now we can engrave a schematic on a surface?

If you have a need to, my idea here was to use CamBam as CAD only.
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