Mechanical Engineering

How many minutes would it take you to model this drawing?

This is a poor example to suggest.

1. It is an advanced part requiring many very advanced modeling methods.
2. There are details and dimensions missing. He must guess at too many features.

With 45 years design and drafting experience, both on the board and using CAD, my opinion this is not a good part for anyone to try. An advanced part with missing details is not a good way to go.

Note my questions below. I had to estimate these dimensions.

Unfortunately I think i would be unable to draw this part accurately and correctly, I don't think i have enough experience to draw it, thanks for the idea though and i will try to model it.

Hello

The bottom part is modeled using a surface.

Create a 1/4 model Or create a 1/2 model.

Mirror or rotate to make it whole and then combine.

Thank you.

The material of this model can be imagined to be cast iron.

Judging from the presence of a taper.

The bottom is understood to be the radius that is the same percentage as the outer diameter.

Although there are some dimensions missing, I think it is possible to build it.

Thank you.

Hey, a little practical experience. Open up your machinery's handbook and try making models of a few of the different types of threads in there. Accurate thread models are mega important when it's something weird or you're using a manufacturing method like 3d printing where what you make is what you get out - you can't tell the printer "put this thread here." ;)

If you're feeling confident, try reverse engineering the threads on some bottles and jars!

This is one of my pet peeves because so many new designers think this is the correct way to do threads in a design. It is not.

Having designed complex automated machinery for many years and done some pretty complex 3D printing of mechanical components over the last 5 years, I very rarely actually needed to model screw threads. While this may be an interesting exercise, it has very little practical application. I’m not saying I’ve never done it. It was fun. But only once was it actually needed.

Don't get into the practice of modeling screw threads. It is not only a waste of time and resources, it is usually quite wrong from a design and drafting standpoint. I have had draftsmen actually draw screw threads on designs and I’ve given it back to them and told them to do it the right way.

It is extremely important to learn proper design and drafting techniques.

Unfortunately for me, I've had to work with 3d printed parts far too often so making thread models is the consequence. I learned a LOT more than I did in engineering school having to actually do it - and turn out correct. Of course on machined parts you can just give specs, which is both a million times easier and a million times better practice. But sometimes you have to print that one little thing that has to fit a bottle, or you have a customer that is desperately in love with multijet fusion, or you're going to that trade show in three days and you need the prototype to show of RIGHT NOW!!! So it is important in my opinion, respectfully of course :)

would there be any value in @Mathew Mattson starting simple on something like that book 100 CAD exercises?

https://www.youtube.com/watch?v=sDIo7ounz8Y

just to get a bit of a learning curve going first.

cheers

i would take only 30mints to create this part