i'm happy to say that precision gears has been updated it's the toothy update and it does a
whole bunch of changes to gear teeth now there's a lot to cover here so let's get straight into it
with gear face chamfering as the name suggests this brings tapering to the gears themselves so
let's get a little closer look in case it's the first time you're seeing precision gears all of
these gears have been created parametrically inside of blender and to edit these we have
to actually just go to the object properties and down here we'll have this lovely gear that lets us
change a whole bunch there's a lot more about this in the very first video go and check that out it's
linked up there so here what is new is this teeth modifications you'll find taper i'm going to put
in two hold down alt and then hit enter give it a little moment because this is doing some pretty
hard calculations to all of these gears at the same time and then there we have it that is a nice
tapered gear now in place and this applies to the herringbone the helical and the normal spur you
might be wondering what this taper offset is well let's go for a 1.5 hit alt and enter and here we
have it it is now just done that change and this is now tapered and offset so moving straight on
we come to rounded tooth tips or rounded reliefs so right here you'll find tip relief let's put
in 0.35 hold down alt then hit enter and there we have some nice lovely rounded teeth as you can see
that has been rounded out and this applies all the way even to herringbone now let's change
the resolution as well so if we put in one hit alt and enter this gives us more of a chamfered effect
or if you want to make this a lot smoother we can put in five alt and enter and now we have some
really nice rounded teeth on all of our gears then we have tooth flank tip relief and it applies to
all of them once again to apply it it's a little bit different though we're gonna go down to this
drop down here on the drop down hold down alt if you want it to apply to everything it's going to
be end relief we'll click it give it a little moment and then once we've done that we have
to put in two values to see something here so the amount that i'm going to start with is 0.4
hold down alt hit enter then i'm going to go down into distance i'll put in one go alt and hit enter
and now with those values in you can start to see the flank effect on all of these lovely gears now
to see exactly what's going on here let's change that distance value we're going to change this one
here to three and it'll become a lot more obvious what's happening again alt and enter the best way
i can describe it sort of like a very big chamfer speaking of which let's turn this into a really
small number so it does look like a chamfer i'll turn this into 0.5 alt and enter once again and
now we have chamfered all of our gear teeth on the flank side next up we have a tooth crowning and
just a little heads up we're starting to dive into the realm of impossible gears because you wouldn't
really do tooth crowning on herringbone gears more than anything because you cannot manufacture them
however with a 3d printer you definitely can it's very similar to the flank we're going
to click on here hold down alt and click on crowning and i'm just going to put in a
nice simple value here of 0.5 0.5 holding down alt hitting enter and there you can see that
all the teeth have been crowned now if you have no idea of what exactly all of these do don't worry
in the next coming videos or so if it's not already linked there or down in the description
i'm going to really talk about all of these settings and what they apply and what they do
for gears then we have tooth undercutting now this is a nice little toggle and i'm just going to zoom
in quickly so you can see what's going on here first i want to just mention that my clearance is
set to zero and my shift is set to zero as well i'm gonna hold down alt and click this toggle here
to make sure that they apply to all of them and you see how it's gone rounded there
that is technically a pretty much zero clearance undercut so we need to give us a little bit more
of a clearance let's go with 0.8 holding down alt and then clicking enter you'll see a much bigger
undercut is now applied and this applies to all of these lovely gears here now it doesn't become
super obvious for the external gears here so let's give it a bigger undercut because external gears
you don't really do undercuts on them not really big ones anyway but
i want to show you that it can work here so let's put it into 1.8 hold down alt hit enter and you'll
see a much bigger undercut is now applied now in the same vein as undercuts but for rake gears you
have base relief in other words just rounding of this bottom bit so we're going to change the route
relief right here let's set that to 0.5 holding down alt and then enter you can see very quickly
we have a lovely little root relief if you want to make this more of a chamfer down there at the root
i don't know why you'd want to but you can press one alt enter and there you have more of this
chamfered effect down at the bottom of course you can make this a much higher resolution as well
for instance 10 alt and enter and now we have lovely root reliefs that are nice rounded bases on
all of our lovely rake gears next up we have much better topology along with pre-creased
edges now going out of edit mode quickly i just want to show you that in the object properties
and if you scroll down you can turn these creases on and off and there's this new weld modifier
that gets applied automatically so if you don't want the weld modifier you can take that off
but just very quickly let me show you in edit mode here you can see the left hand side this
is the new geometry that is the old one new one here old one right there again here we've got the
new one and the old one just for reference there's a whole bunch of changes here however the bevel
gear has not really had that big of a topology change just due to the mathematics but there is
creased edges now added and we'll quickly whiz through these last three materials
now stay assigned when you do changes to the gears themselves we now have perfectly round
internal gears thanks to subdivision surface and much better topology with pre-creased edges
and now the cross bore is a lot more intuitive to use both of these had the exact same values but
because this one was scale based things were going a little bit wrong so right here you can
see now on the core size if we change this value size it's actually going to change as
we expect and we can change each of the x and the y individually as well and there you have
it that is precision gears the toothy update now i've just shown you all the updates individually
keep in mind that all of these can be used together and collectively to pretty much create
an infinite amount of gear styles so if you're wanting to get a hold of precision gears yourself
it's linked down in the description a huge thank you to my patrons really without you guys i would
have not been able to have made precision gears at all and if you think i'm worthy of your support
and you're enjoying what i'm making here i would love to see you there too a big thank you to my
vip maker cem ozkaynack as well and i can't wait to see what all of you are going to be
getting up to with precision gears thank you for watching keep making and let the quest continue