BikeCAD Pro How To Forum

I got a bit of a problem. I had a good design of a 24 x 1.75 pair of wheels on a current little knock around I had designed. Then my computer got sick. Unfortunately I lost that design and I am subsequently forgotten how to change the tire/wheel size from my standard 700 C down to that little science wheel.

any clues?

Hi all,

I am probably missing something, but I would like to increase dimension F in the seat stays window to achieve a nicer bend profile to the stays.

However, the label appears greyed out and I can't see any means of defining this dimension.

Thanks in advance, and apologies if this has been dicussed somewhere previously.

Hey Folks,

I ran into an interesting issue when mocking up a balance bike.

1. BB is set to 0/0

2. DT offset is 20mm

3. I'm trying to match the DT/ST offset at the CS.

In the CS pallet I try to adjust the value for E. I can adjust the number but nothing previews + I cannot do anything else (e.g. zoom in/out, change variables in other paletts, etc). However, if I change the CS to a wishbone then I can adjust the number + everything works as normal.

I realized that when I try to reduce the saddle length from a standard 270mm to 240mm (e.g. Specialized Romin to Power saddle for example), the saddle length adjusts by chopping the rear of the seat. But what if I want it to reduce the length from the front? IS his possible?. I realized that by only chopping the rear of the sadddle, I cannot get the acutual saddle set-up (rail posiiton on the clamp) that exists on a bike I have measured.

For the purpose of fitting I measure fore/aft and effective body extension from the sweet spot of the saddle (widest point of the saddle). Is there a set dimesion that rcognizes this protocal and if not how do I create one (other that the right click start a new dimesiont option). In other word I want a standard dimisention and calcualtes the changes in reach and fore/aft when adjsuting saddle height, stem length, spacers... and so on

I would like to know the height and distance of the rear axle relative to the BB center in a coordinate system where the frame is rotated so that the head tube is perpendicular to the ground. I think this is JFX and JFY. Can you confirm?

I apologize if this is basic or has been covered...

Is there a way to save which dimensions one has checked?

I use one set of dimensions for frame design (Effective TT, Actual Chainstay Length, etc), and another set of dimensions for building (HT Bottom X/Y, Horiztonal Chainstay Length, etc.). It would be awesome if I could save which dimensions are checked in those two states, and then flip back and forth between them, without having to find and check/uncheck each individual measurement.

Let me know if this doesn't make sense!

Thanks!

-Chris

Hello Brent,

is there any way to lock only the main triangle, while change any other parameters on the frame?

Thanks,

Gabor

1. The only way I have figured out on how to raise both the aeropads and extensions at the same time to a TT bike is to change the stem angle. But many super bikes allow riders to add spacers to below the proprietary stem head, in effect raising the entire aerobar complex without changing the stem angle (which for many of the TT bikes you cannot do). I tried adding spacers to below the head set but it had no effect on the height of the aerobars. I know how to raise the aeropads independently but the extensions stay where they are which is not what I am trying to depict.

Hi *,

I want to build a long john cargo bike.

There are designs in the archive - but I don't know how to create or maintain additional tubes which are not between the preset tubes in the drop down menue for additional tubes.

In case anyone could describe it I would be very delighted!

Cheers,

Alex