crank hub with taper and keyway

[Anonymous]

 

Hello there im new to fusion and I’ve been trying to replicate a crank hub from my car engine that has an internal taper and also a keyway, as you can see from these photos i have tried with the 3d scanner but at the moment im struggling to get a good scan so i thought i would try model it.

Im wondering what would be the best way to create the whole item? make a few parts then add them together?

any assistance will be a great help.

many thanks

Chris

[laughingcreek]

the taper of the hub will be defined on a spec sheet some where.  it will be a standandard.  the rest I would measure and model.  don't even mess with a scan for something like this.  having the item in your hand and a caliper is way better.

attached is a simple approach

[Anonymous]

thank you, is that made in 1 piece or do you make 3 and join them? its tapered internal and external after checking with my calipers.

[Ajay_Kumar_Reddy]

Follow these steps to replicate the case:

1. Measure the diameter(external) and the extrude length with caliper(digital)

2. Measure the internal diameter of holes.

3. model it in fusion 360, using those dim

4. For modelling the key you can do two things.

     a. use the revolve initially and then the extrude cut.

     b. use extrude for whole model and then use the extrude cut with taper angle.

just pay attention while modelling the key.

[Anonymous]

just had a quick practice 

[laughingcreek]

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@Anonymous wrote:

thank you, is that made in 1 piece or do you make 3 and join them? its tapered internal and external after checking with my calipers.

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Have you stepped thru my time line?

post your attempt (your .f3d file) and folks will give you feedback.

[Anonymous]

i had to google what you meant by time line 😂😂 like i said im tottaly new to this and didnt realise i could watch how you did it.

[laughingcreek]

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@Anonymous wrote:

... im tottaly new to this ...

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got it.

creating good stable sketches should be your focus right now then.  The parametric abilities of fusion are all built on sketches.

understanding and manipulating the time line is also an important skill for beginners.

There are several threads/debates on this forum going right now about the use of primitives (ie cylinder etc) in fusion modeling.  My suggestion is to abandon the use of primitives right now and learn how to model with out them. (which you should take as my critique of your posted model.)