Member postings for blowlamp

Nurbs modelling basic principles to get you started.

Martin

So here we are on page 6 of this topic...

...Can anyone point me to any specific questions that have been asked, progress that has been made, or any advice that has been taken?

Martin.

I'm linking to a mini tutorial on the MoI forum that gives guidance to a member, on the construction of an open-ended spanner.

Whilst not the most challenging of projects for some on here, Michael Gibson (author of MoI) explains & illustrates some of the basic techniques in planning its construction.

It's a useful building block for many other parts that one might need to make in 3d CAD.

Martin.

As Dave Smith shows, you can certainly make a hollow cylinder, as well as other shapes using the revolve function.

Martin.

Using simple tools like Offset and Boolean Intersection I made a Crosshead model.

MoI isn't a Parametric modeller but it's still quite nifty.

Video here, including a very basic mistake.

Martin.

It's plainly obvious that the reason for your difficulties is because TurboCAD is too difficult for you to learn. You are not getting help from other TurboCAD uses because there don't seem to be any here.

I tried TurboCAD quite some while ago and like you, found it heavy going, so I moved on. I've tried Fusion 360 as well as Solid Edge, but despite their greater capabilities in some respects I find them quite regimented in their model creation and find MoI more to my liking and for what I use it for, it is very 'fluid' in use.

You do seem to be stuck in the idea that because others can successfully use TurboCAD, then it must be a failing on your part, because you can't, but like all tools, software is there to enable to get the job done.

If a tool is blunt or broken then it should be sharpened or replaced and if a tool is poorly designed it should be exchanged for something better.

I think you are flogging a dead horse with TurboCAD and what you need to do is find some software you can work with.

Martin.

TurboCAD is dreadfully poor compared to more modern offerings

Did you check out the two videos I made on the previous page, of how straightforward 3d CAD (MoI) can be?

I did your bunkers and your chassis in about seven or eight minutes - only approximations of sizes, but just to show the principle.

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Martin..

Edited By blowlamp on 09/05/2022 12:34:59

I've also had a go at your bunkers. Started with a rectangle and shaped it to suit. Extruded, then Shelled to leave an open top container. Finally Mirrored to make a pair.

Martin.

I made a video using rectangles to create a simple symetric version of a chassis similar to yours, without needing to mirror anything.

It uses the sweep tool that you haven't tried yet.

Martin.

Edited By blowlamp on 08/05/2022 23:08:11

I'm not seeing any intention of you wanting to learn. I think you want to make the point that 3d CAD is too hard for you to grasp.

I've suggested MoI and you have offered no feedback one way or the other.

What is the point of this thread you have started?

Martin.

I don't think this thread is anything about wanting to learn about 3d CAD.

Martin.

Give us an example of something you've made that you think would take too long to draw in CAD.

The advantages are way beyond nice pictures. The CAD system helps to pick up errors in design before they progress too far and it can help to find 'hidden' dimensions of parts under construction.

I use my CAD almost every day for one thing or another - a complete ground floor redesign is the latest project and CAD let me see what would and what wouldn't work. It's saved hours of wasted effort.

Martin.

Nigel.

Are you sure you really do want to learn 3d CAD?

You're not coming across (to me) as being very enthusiastic about any of the suggested software.

If you are serious, then tell us what you want to draw and I, for one, will do a (slow) short video in MoI of a way to do it, provided it's not too involved, of course.

Martin.

Nigel.

Have you ever tried MoI? If you haven't, you've missed one of the easiest CAD systems to learn.

Martin.

Does Troy Tempest know about this?

Yes, it's possible. I recently watched an episode of Stingray and I think they mentioned travelling at a speed of 600 knots whilst submerged, so anything is possible.

Martin.

Just something else to keep us on edge.

Go back a page and you'll see I did just that.

Martin.

Why don't you have a go at crashing MoI?

Martin.

This is MoI effort.

I didn't do the ends as I think this has been covered.

Martin.

Edited By blowlamp on 30/04/2022 17:46:56