FreeCAD - Make Supercharger Lobes|JOKO ENGINEERING|

[@simonmerrett]

I don't even care about the details of a FreeCAD tutorial atm - I'm adding likes to anything which helps people cross deck from Fusion 360 and gets more momentum into FreeCAD. I hugely value this channel for helping me learn FreeCAD and it deserves attention.

[@henrymach]

Agreed

[@larryjeffryes6168]

I'm loving it but cant get the install right. If there was some generic install clone for each major OS, that resides wholly on your HD that would do a lot.

[@weldingempire]

First comment! The world is a better place with more superchargers.

[@brucewilliams6292]

I sincerely appreciate the video. Now that we can draw them, we just need to know how to animate them! Thank you as always.

[@zora_tech]

It always amazes me how much stuff you can do in FreeCad

[@nickvolling518]

Thanks for sharing these skills. :)

[@JamesAnderson-fw5ew]

How do you calculate dimensions of supercharger crews?

[@Brickerbrack]

You say "supercharger lobe", I say "liquorice". 😜 Brilliant tutorial!

[@user-zs4iv3vf5m]

funny Gear set design, thanks for share, it's be a new "homework" for me.

[@agatasoda]

Computer fan in freecad? Still new to cad I had a go at just the blades/hub got pretty much the shape I was looking for which is really cool(the compressor videos helped a ton) it feels like I could be much faster! I know practice will make it happen though any tips would be greatly appreciated!

[@BOTmaster15]

Wow this is awesome. I guess doing custom helical gears wont be a problem with FreeCAD. Does anone have an idea where to start with organic shapes in FreeCAD? I have to print sun visor pivot trim cap for r129 mercedes and ohnestly I thought about scanning it and importing stl for a template. Nothing else comes to mind :/.

[@nothanks7752]

The lack of dimension mirroring definitely threw me off the first time I used this. I find it so strange that I mirror something and it doesn't stay linked to the original.

[@reachvenu16]

Is there any possibility of spiral sweep of any shape in freecad?

[@JokoEngineeringhelp]

Yes but I don't know exactly what you mean by spiral. Some people have asked me about spirals meaning a tapered helix; which at 9:22 you can see the bounding sketches I made. You could probably angle those to make a 'conical' tapered helix. If spiral here means a shape that is widening around a curve in 2D space, you can go into the part workbench and insert a spiral from the geometric primitives and use the spiral as a sweep path.

[@henrymach]

These FreeCAD options get very esoteric sometimes. How does the "freenet= true" fixes the twist? Why?

[@kwahoo5746]

It's actually frenet, named after Jean Frédéric Frenet. Check "Surface modeling. Part2 " on the Opencascade blog for pic examples.

[@MrCoffeypaul]

Sht hot man, thanks!

[@MdMozammelHossain]

Thank you for this tutorial, actually I've learned to make this lobe from your solidworks tutorial, and I able to do it on freecad, but my problem is (which still there) how to design those real-world lobe which mostly not identical. I've not able to find any tutorial or paper to learn it.

[@billereses4935]

After reading your title, I thought you will design something that charges Teslas or so :-D Didn't knew that this thing's name is so...

[@Curixq]

Another possibility is to use the array add-on. You can make an array of a number of profiles and then loft trough them. This doesn't have the variable twist problem. I used this once to try to make a globoid worm gear, but didn't succeed.

[@4funrc11]

👍 I see you are using version 0.18. Is there a particular reason you are not using version 0.19_pre? Just guessing, OS restricted maybe? TiA. 😃