We are looking at here what appears to be an artists or CAD circuit drafting circuit part drawing 'convention'. In the drawing of the Bosch automotive relay we used, this is how it was positioned. Does this illustrators' convention make any difference in "how" our device is used? A diode was shown accross the coil-which I erased in the final edit of the CAD drawing in Photoshop when I had scanned the SmartDraw final output image in to TIFF format using HySnap before finally converting to JPEG for upload to the Imhotep forum here... It was a long search-to find a programme that would have the Bosch relay we are using & conventional electrical parts. Interestingly enough, the freeware and most all other schematic drafting programmes I looked over did NOT have a means to modify or add 'new' parts on the user's behalf to their already pre-existant libraries. Also, just a drawing programme-am not interested in 'Spice' software, 'electrical rules checks' & making a printed circuit board at this point, just simple CAD = draw the damned schematic. SmartDraw does this, ( www.SmartDraw.com
) and is a programme that makes other audio visual aides, like: cycle diagrammes, flow charts, simple diagramme, charts&graphs, printable commercial signs like 'No Parking Any Time', storyboards-among many other functions. It also has a circuit schematic drafting function we used to make what we posted here: smart draw has the Bosch relay you have questions about in a seperate sub library dedicated to automitive electrical parts. We now now have a permanently working copy. A bit on the expensive side-cost: $197.00 Their demoware will remain fully functional for @ one week.
I'm trying to find a simple, easy to use freeware or educational CAD schematic drawing programme, so that users here and on other sites studying this problem can use a website posted reference to download it; and members can use at home to draw and post clear, easy to read circuit diagrammes. On other allied experimental sites, most of the electrical circuit diagrammes the experimenter draws by hand and posts are practically unreadable on line. If you cannot endeavour to reproduce the experimenter's obsrvations and results because of this-what's the point?
August 11, 2010