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Bicycle Design Software

Seatpost clamp

maclejend
Framebuilder
NICKOL, WA Australia
By maclejend | 12:47 PM EDT, Sun April 08, 2012
BikeCAD Feature Request

Hi Brent

Any chance you can add a seatpost clamp option?
While not "structurally important", on many bikes it is colour matched to other components.

Regards
Jim

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

Brent

13 years 9 months ago

Permalink

Seatpost clamp

A seatpost clamp is a great idea. I will plan to include that in the next update along with a braze-on for a seatpost binder bolt.

Stay tuned...

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tandembiker
Framebuilder
Schiedam, Netherlands

tandembiker

7 years 8 months ago

Permalink

In reply to Seatpost clamp by Brent

The inner diameter of the

The inner diameter of the Seatpost Clamp follows the diameter of the Seatpost.
I think the inner diameter of the Seatpost Clamp should follow the diameter of the Seat tube.

When I make the Seattube invisible (exclude the tube from the design), the Seatpost Clamp disappears.
Why ?

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

Brent

7 years 8 months ago

Permalink

In reply to The inner diameter of the by tandembiker

Seatpost clamp

I've tried to replicate this scenario but I have not been able to do it. Right off the bat, there is no option to exlude the seat tube. You can make it discontinuous, but I have not found that to have any impact on the saddle clamp. Could you please send me a BCAD file containing an example of this issue?

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tandembiker
Framebuilder
Schiedam, Netherlands

tandembiker

7 years 8 months ago

Permalink

In reply to Seatpost clamp by Brent

Seatpost clamp

I have assumed I do not have to adjust values for A. B and X, when choosing another Seat tube diameter.
Because the Seat post diameter is not a parameter in the Seat post clamp window.

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

Brent

7 years 8 months ago

Permalink

In reply to Seatpost clamp by tandembiker

Seatpost clamp specs

I agree that if you make a dramatic change to the seatpost diameter, it would be nice to have the seatpost clamp specs parametrically linked to the seat tube diameter. However, it was a deliberate choice to set things up the way I did. Some will design a single clamp and then bore it out to a few different internal diameters. Alternatively, some clamps are sold with inserts so the same clamp can be used with different seat tube diameters. An example is below.

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