Main navigation

  • Home
  • BikeCAD Pro
  • BikeCAD Online (Free)
  • Design Archive
  • User Guide
  • Help/ FAQ
  • Forum
  • Glossary
  • Cycling Dingbats
  • Upload a BCAD file
  • Release Notes
  • User Map
  • BikeCAD Pro Owners
  • Contact

User account menu

  • Sign up
  • Log in
Home
Bicycle Design Software

Seat stay placement on top tube

falsea
Framebuilder
By falsea | 3:04 PM EDT, Thu July 29, 2021
BikeCAD Pro How To Forum

Heya,

I'm running into a strange behavior. Not a big deal but I can't seem to get rid of it by changing any of the obvious inputs. Unsure if this is a bug or if I'm just doing it wrong.

Basically, when I try to attach the seat stays to the top tube I get an illustration that looks similar to what happens when you try to an "impossible" curve in a tube. See photos attached.

The Z axis changes by 1mm in the photos. I dont really mind visual noise. I'm just unsure how to interpret what I'm seeing and am unsure if I'm just messing something up.

Thanks

-T-

Brent
Profile picture for user Brent
www.bikecad.ca
Ottawa, ON Canada

Brent

4 years 5 months ago

Permalink

Seat stays parallel to top tube

BikeCAD is not optimised for modeling this sort of seat stay attachment. It has an easier time with stays that approach the connecting tube at some angle. however it was slightly improved in version 17. What version are you using here? Could you send me a copy of the BCAD file in question, so I can have a look? You might also find that even though the stays look kind of messy in this view, the model exported to FreeCAD could still turn out well.

  • Log in or register to post comments
falsea
Framebuilder

falsea

4 years 5 months ago

Permalink

Hey Brent,

Hey Brent,

Before I send you down a path I'll check this out in V17 (I'm on 16.x).

Thanks as always.

  • Log in or register to post comments
  • Log in or register to post comments

Copyright © 1998 - 2026 The Bicycle Forest Inc. - All rights reserved

Drupal theme by Alaa Haddad