FreeCAD Tutorial - Assembly 4 Workbench

An introductory look at the FreeCAD Assembly 4 workbench. This video is made to accompany a written tutorial (see Github link). This tutorial was made using FreeCAD 0.19.

Links:

[thomasedwards]

I'd like a shout out to all of the open source community including this very helpful tutorial. Thanks all for sharing your time, knowledge, and skills with the rest of us.

[eslavasmart]

Thanks for this helpful tutorial. Your way telling it is relaxing as well! Finally I understood this workbench, a new world to me and Freecad.

[garfish]

Nice, 14:00 exactly. This is appreciated by everyone with OCD

[ericdage]

Great tutorial. Clear, concise, well paced. Thank you !

[roncouch]

Yes, even paced, clear and concise. Just a pity age disadvantages me as it’s over 20 years since I retired and last used CAD professionally as an aerospace airframe component designer. I have grasped the basics of freeCAD, but the ‘tree hierarchy’ system is just a mite challenging as earlier systems I used did not employ a visible tree display; allowing for a good measure of intuitive design methodology. I belong to an association of retired engineers, carpenters and craftsmen and, as the only CAD-trained member, I thought FreeCAD could be of use. Am currently building a sphere turning fixture for a wood lathe. I have modelled all the detail parts using FreeCAD as well as creating the 2D detail drawings using Techdraw. The design concept, however, I modelled in SketchUp as this is very flexible and does not need to be modelled parametrically. The perspective capability also helps other members to “see” the finished installation in 3D space. This tutorial is uncanny as the shaft with the bearings - as a concept - matches the shaft and bearing assembly I designed for the turning fixture. I have used just two standard bearings as I am confident only a small amount of axial thrust will be imparted during operation of the fixture.

[manddca]

Thanks.
Everyone, make sure that you don't forget to "Save".

[ianwalker]

Thanks for this - I hadn't realised that the component parts also had to be in Assembly models

[brettparker]

Great video. I'm really enjoying learning the different available workbenches, thanks.

[andrewluger]

Excellent,
I will work through this tutorial, thanks to all involved

[dubbaluga]

Thanks for this tutorial! I really like your presentation style. It helps me to stay focused.

[claudioguarnieri]

Good tutorial but I am finding issues at 5:58 while creating new coordinate system

Report:
<Gui> Document.cpp(382): Invalid sub object 'assi#Model.Body.LCS_1.'

[JW]

Great tutorial. I get to 12:56 when you recompute your model to have the bearing realign to new end of shaft. When I get here, my "recompute" sysbol is greyed out, eventually I find "mark to recompute" and click recompute but the bearing does not move, stays isolated in original position. The bearing via its "linked part" is attached to Parent Assembly#LCS_Origin, is this a mistake, the parent LCS origin has not altered by editing the sketch, so why does it move. Logically the LCS_origin of the bearing should be attached to the stepped face of the shaft, but very clearly the tutorial (both the original docs and your faithful illustration) does not do this. Any help or explanation would be appreciated.

[davidbergweiler]

This is sooo good.. actually reminds me a little bit of blender, thanks for sharing!

[randyrichardson]

Worked for me! Great job. I am going to like this new found capability.

[jonathanrichards]

You've possibly forgotten you ever made this video (!) but I'm attempting to get up to speed with ASM4 in version 0.22 (development), and this is still the latest explanation. I'd like to point out that in the written tutorial, the location of the axis sketch with respect to the origin is (a) critical and (b) not mentioned, although you take care to put it on the "second shoulder" in the video, without mentioning why. I didn't, and it's a b**st**d to move the sketch later, so I ended up following along twice!
You also don't mention the principle involved here, that we're going to make parts, give them local coordinates, and then match up the coordinates to make the assembly work. It becomes clear before the end, for sure, along with why that axis location is critical.
I shouldn't carp; if it wasn't for your fine video, I'm pretty sure I would have given up some time ago. Cheers!

[supercurioTube]

Looks pretty good! Thanks for this approachable tutorial to assemblies

[Akum]

Thanks for the video tutorial, very waiting for the next tutorial!

[edwardvmills]

fyi, you can edit the shaft sketch directly in the assembly too, then you can see everything moving in real time (or close to real time)

[BTom]

This tutorial is brilliant. Thank you!

[naasking]

A decent start, but it would help a lot if you explained what is going on when you define and select the lcs origins, and also the edge and choice of "concentric".