Rack gears extension

[jazzynico]

Bug created from Question #182046 "I would like to know how to draw a rack gear"
---

Dear Sir/Madam,

I am a new user of the Inkscape. I would much appreciate it if you could teach me know how to draw a rack gear. I would like to draw a set of gears designed to convert rotary motion to straight-line motion or the other way around. I have figured out how to draw a pinion gear (i.e. Extensions > Render > Gear...) but have no clue how to draw a rack gear.

Many thanks indeed for your time and help.

Best regards,

Kun

[jazzynico (jazzynico)]

Attaching braingram's file from https://github.com/braingram/inkscape_rack_gear.

[jazzynico (jazzynico)]

Tested (quickly) on Windows XP, Inkscape trunk revision 12312.
It works as expected, but crashes (infinite loop) when spacing is set to 0. Could you please add a low limit in the inx file, and also test the spacing value in the python code in case the script is called from a command line?

We are currently working on the existing gears extension to add new features (see Bug #707290 "Gears extension improvements"). IMHO merging both extensions wouldn't be very user friendly, and thus I suggest we create a new Extension>Gears submenu where we could add the circular and rack gears extensions.

[Martin Owens (doctormo)]

I've committed the extension to trunk (this is what was expected right?) I've also changed the Gear extension so it follows under Render > Gear > Gear ... and Render > Gear > Rack Gear. I added the minimum values for both spacing and length. See r12391.

[~suv (suv-lp)]

Oops, sorry, unintentional change (finger slipped on trackpad) ;)

[~suv (suv-lp)]

IMvHO it would have been nice if the new extension features unit support (like the regular 'Gears' extension), useful mainly in technical drawing contexts.