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Taper question (#4519)
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jors  
#1 Posted : Saturday, September 29, 2012 2:10:43 PM(UTC)
jors

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Joined: 9/18/2011(UTC)
Posts: 61
I can't seem to figure out how to taker a cylinder solid.
If I create a solid of say 50 mm long with a diameter of 20 mm, how do I make the one round face smaller to say 15mm?

I want to draw a morse taper in a spindle.
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BPL-RFE  
#2 Posted : Saturday, September 29, 2012 4:38:40 PM(UTC)
BPL-RFE

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Hello Johan.

Look at the Goblet-Video.
If you would draw a Rectangle and Revolve it you would get
a cylinder, right ?
So what shape must be drawn to get revolved a section of a cone ?

Roland
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jors  
#3 Posted : Sunday, September 30, 2012 1:43:13 AM(UTC)
jors

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Thanks.
I thought there was an easier way to do it.

Even the screw is easier to do.
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BPL-RFE  
#4 Posted : Sunday, September 30, 2012 4:48:56 AM(UTC)
BPL-RFE

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Hello Johan.

The bolt-modeling-Video shows another way.
Draw your circle and use the "Extrude Solid" Option.

But this is AFAIK only possible in "Z"-direction and you must know
your angle.

Otherwise you will be better suited with the Revolve-Operation.

A lot of ways lead to Rome.
It depends on a lot of things which one is best for you.

That is the sort of information i am missing also a little bit.
There are explanations of the different Menu commands and you see
the end results (of projects).
But the way to achieve them is on of the things most interesting for the
user.
That means i am missing more tutorial videos on "real" problems.
Maybe if time passes by ...

Roland
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blowlamp  
#5 Posted : Sunday, September 30, 2012 7:23:14 AM(UTC)
blowlamp

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Joined: 6/28/2008(UTC)
Posts: 648
This is easy and quick to do.
Here's a few ways. http://screencast.com/t/ZnOLXuxfWi
You can extrude in any direction, just check out some of the options.



Martin.
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rockyroad_us  
#6 Posted : Sunday, September 30, 2012 9:45:43 AM(UTC)
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Great video, Martin. Don't forget you can also do skin solid with two difference sized circles spaced apart. This gives you more of a visual to change diameter sizes.
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Tem  
#7 Posted : Monday, October 1, 2012 2:08:44 PM(UTC)
Tem

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All three approaches will work. There might be some advantage to one methods if relations to other parts are required later. Constrains could come into play as well, if you use those in your modeling.
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billbedford  
#8 Posted : Tuesday, October 2, 2012 1:27:01 AM(UTC)
billbedford

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Joined: 2/19/2007(UTC)
Posts: 186
Morse Tapers are defined by the angle of the taper, so the easiest way of drawing one is to use a draft on your cylinder.
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jors  
#9 Posted : Tuesday, October 2, 2012 12:11:39 PM(UTC)
jors

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Joined: 9/18/2011(UTC)
Posts: 61
Thanks, That was what I was looking for. Can I download the clip?

I have bought myself a mini milling machine as a supplement to my lathe two weeks ago. My first bigger project will be a non-geared indexing device. Something I wanted to make for years.
I find it easier to draw something in 3D to scale, then I will see better if it will work or not. I normally work off the fly, but I must force myself to work from a plan.
Now I can change the 3D to a proper plan to work from.
I saved the shortcuts to custom keys for the views and defined a new isometric view, but seen from the left. Now just to save a shortcut key for that view.

Wow, this PunchCAD rocks.
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