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Bicycle Design Software

Modelling Internal Tube View

Guerciotti123
Framebuilder
By Guerciotti123 | 6:11 AM EDT, Fri October 20, 2023
BikeCAD How To Forum

Hi,

Does anyone know if it is possible to view / model / export an internal view of the tubes showing tube wall thickness and butting?

Thanks in advance.

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

Brent

2 years 5 months ago

Permalink

Butting profiles

I've just added the option to model the butting profile of tubes. This will be available in the next update.

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Guerciotti123
Framebuilder

Guerciotti123

2 years 5 months ago

Permalink

Butting profiles

Thanks very much for this Brent

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bluecrowbar
Profile picture for user bluecrowbar
Crowbar Cycles
Ronse, VOV Belgium

bluecrowbar

2 years 5 months ago

Permalink

Butting profiles (external)

Will this also work for external butted tubes? I often use seat tubes that have an external butt at the saddle end, e.g. Columbus SLFI13520001. Being able to model this will help to get the tube length and the mitre correct.

Steven

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

Brent

2 years 5 months ago

Permalink

In reply to Butting profiles (external) by bluecrowbar

Externally butted seat tubes

This can already be done. The Columbus SLFI13520001 has a diameter of 28.6mm at the base and 29.4 at the top. These dimensions can be input using the Variable tube diameter option shown below:

Admittedly, you don't currently have the option to specify the length of the externally butted section. However, BikeCAD automatically locates the taper a short distance below the bottom edge of the top tube, so the top tube will always attach to the butted section which I believe is considered optimal.

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bluecrowbar
Profile picture for user bluecrowbar
Crowbar Cycles
Ronse, VOV Belgium

bluecrowbar

2 years 5 months ago

Permalink

In reply to Externally butted seat tubes by Brent

Externally butted seat tubes

Great. Thanks for the info.

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