Search found 94 matches

by dave_w
Sat May 29, 2021 10:52 pm
Forum: Open discussion
Topic: Screw Impeller Example
Replies: 14
Views: 3950

Re: Screw Impeller Example

Cool! Let me experiment.

Thanks Bill.

Dave
by dave_w
Fri May 28, 2021 11:58 pm
Forum: Open discussion
Topic: Screw Impeller Example
Replies: 14
Views: 3950

Re: Screw Impeller Example

I think I posted a head exploding some months ago. Here I am again. I need to process this at a much slower rate.

Thanks Bill & Chris.

Bill, no, I hadn't noticed the PM until you said. I will go to it next.

Dave
by dave_w
Fri May 28, 2021 5:08 pm
Forum: Open discussion
Topic: Screw Impeller Example
Replies: 14
Views: 3950

Re: Screw Impeller Example

ppemawm, A question if I'm not imposing too much. How would I go about changing the diameter and length of the impeller? I can see how I can change the length and taper of the cone, but don't see how I can change the diameter of the blades and make the blades wrap along a longer cone. I can't quite ...
by dave_w
Fri May 28, 2021 3:12 am
Forum: Open discussion
Topic: Screw Impeller Example
Replies: 14
Views: 3950

Re: Screw Impeller Example

Thanks ppemawm and chrisb. I'll go and study this. Can't wait!

Dave
by dave_w
Thu May 27, 2021 9:45 pm
Forum: Open discussion
Topic: Screw Impeller Example
Replies: 14
Views: 3950

Screw Impeller Example

Hi, I've searched around for an example of a screw impeller I could re-purpose. I'm not looking for a normal screw thread, though it might be similar to a self tapping screw. I've seen pictures of a pump which has an impeller similar to what I'm looking for by ppemawm (https://forum.freecadweb.org/v...
by dave_w
Wed Apr 15, 2020 11:52 pm
Forum: Users Showcase
Topic: Custom Box For Electronics
Replies: 12
Views: 3005

Re: Custom Box For Electronics

🤯

Well that explains the matte.
by dave_w
Wed Apr 15, 2020 9:09 pm
Forum: Users Showcase
Topic: Custom Box For Electronics
Replies: 12
Views: 3005

Re: Custom Box For Electronics

chrisb wrote: Wed Apr 15, 2020 7:58 pm That's what my question was about: what material/printing technique you ordered.
Oh, I get it. You mean FDM vs. SLA and others. I never looked but I think you already determined it was FDM.

Dave
by dave_w
Wed Apr 15, 2020 6:02 pm
Forum: Users Showcase
Topic: Custom Box For Electronics
Replies: 12
Views: 3005

Re: Custom Box For Electronics

What technique did you use for printing? Uh... Now you're using terminology I don't understand. :D I just used FreeCAD to design the box and lid, then exported to an stl file, then uploaded that to ShapeWays, verified that it looked like what I wanted, then told them to print. Did I miss something?...
by dave_w
Wed Apr 15, 2020 5:30 pm
Forum: Users Showcase
Topic: Custom Box For Electronics
Replies: 12
Views: 3005

Re: Custom Box For Electronics

Looks really nice. How was this produced? Looks like some kind of sintering... How much did it cost? Yes, as I said, I am extremely happy with the results. Especially with the first design from a complete noobie who is often clueless. :lol: I'm not very cost sensitive to low cost things like this, ...
by dave_w
Wed Apr 15, 2020 3:47 pm
Forum: Help on using FreeCAD
Topic: Unable to Fillet
Replies: 3
Views: 448

Re: Unable to Fillet

Correct me if I'm wrong. Your wrong. :) Do some searching and you will find hundreds of post, fillets are to do last, and do the least possible, and start with a small radius. There are many ways to design without them using sketches. This is typically one thing that can crash FreeCAD. These work u...