i’m trying to model 2 gears at 90 degrees
type helical
see pic here
is there any way to do this in blender ?
may be some script or manually may be
thanks
Add Mesh, Extra Objects, Gears, Gear. Skewness makes it helical.
skew angle not enough to match the gears must add up to the intersection angle so for 90, 45 and 45. if I understand you correctly.
are you talking about a worm gear?
Two helicals at 90 degrees would be called a ‘crossed’ helical gear, you can google it. Smaller angles are used to change direction so the shafts can be at say 30 degrees but usually only one of the gears needs to be helical. Are you just playing around or trying to actually reproduce a known object?
for a model in the merlin engine WWII
there is 2 such gears!
I did search and it looks like it is an helical gear
and yes it is a ‘crossed’ helical gear,
tried 2 script for gears and cannot get the 2 gears to work nicely
there should be a way to do that in blender
still working on a script to do an helix with a specific angle - almost done
but that wont give me a gear yet !
thanks
Ok then. I guess if the skew is not good enough it must be an extremely high precision model. Your modeling needs are probably well beyond using proportional, connected, linear and rotating the top which is how I would advise people to model this shape, but it is unlikely to work for you. Good luck!
it is easy to do the first gear with script like you did as example here
the hard one is the other gear at 90 degrees!
and your right using the twist or even simply rotating the top loop does not give a nice shape
too much distortion
I got my helix in 3D with a given slope and it is giving a nice round 3D shape
then I will see how to get it to do a nice 3D gear teeth and then use the spin tool
i’ll ask question in python forum may be it already exist !
thanks
mat be the night did bring some new ideas
doing some experiment with screw tool and getting this
not yet very nice but slowly getting there
but need lot of work to get the right shape if possible at all with screw tool
thanks
go the new script to work and get something which is not the right way
but at least it is beginning to look like it
http://blenderthings.blogspot.fr/2013/08/Gears2.0.workinprogress.html
will try again to get a more realist model
thanks
for the model I need to do the helix angle is very small only a few degrees
but will experiment more
thanks
Hello again, gears rotation better looks on video, please watch is it what you looking for
blender file in attachement.
Attachments
Helical-gears.blend.zip (321 KB)
