Help with front of car chassis

[tmachek60]

I am a total noob to freecad. i am working on a project to design my own car. i am leaning how to use cad on a lotus 7 chassis to figure how to use free cad. I am running into a problem at the front of the car. the to tube is set back 3 inchs from the bottom tube. I having trouble with the side tubes angles. i have supplied pics. thanks in advanced.

[chrisb]

Hi and welcome to the forum!

How can we help? There is no file nor detailed description which both would be helpful for the helpers.

[freedman]

It's hard to know what to say. I guess you need to sketch from the side so you can create the angle required.

[Syres]

I am a total noob to freecad. i am working on a project to design my own car. i am leaning how to use cad on a lotus 7 chassis to figure how to use free cad. I am running into a problem at the front of the car. the to tube is set back 3 inchs from the bottom tube. I having trouble with the side tubes angles. i have supplied pics. thanks in advanced.

Welcome, I really think you're trying to run before you can walk (especially IMHO using Part Design Wb). I've attached what I believe you require and I've tried to put some hints in the names of the objects but I had to use some offsetting that wouldn't be obvious to a noob along with expressions (suchas <<FrontTopTube_BoxXSection>>.Constraints.BoxSectionOS) so you can change the wall thickness in one sketch an it propagates to all the others.

Modelled using:

OS: Windows 7 Version 6.1 (Build 7601: SP 1)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24291 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: 7b5e18a0759de778b74d3a5c17eba9cb815035ac
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/United Kingdom (en_GB)

[Shalmeneser]

There is a key on your keyboard to take picture of the screen : PrnScr (print screen) or something else.
The quality will be better than with a camera.

And the book must be 'parallel' to the camera.

[tmachek60]

THANK YOU SO MUCH SYRES. YOU ARE MY HERO. I cant thank you enough. i was struggling for a week on this problem. I learned so much.

[tmachek60]

I am a total noob to freecad. i am working on a project to design my own car. i am leaning how to use cad on a lotus 7 chassis to figure how to use free cad. I am running into a problem at the front of the car. the to tube is set back 3 inchs from the bottom tube. I having trouble with the side tubes angles. i have supplied pics. thanks in advanced.

Welcome, I really think you're trying to run before you can walk (especially IMHO using Part Design Wb). I've attached what I believe you require and I've tried to put some hints in the names of the objects but I had to use some offsetting that wouldn't be obvious to a noob along with expressions (suchas <<FrontTopTube_BoxXSection>>.Constraints.BoxSectionOS) so you can change the wall thickness in one sketch an it propagates to all the others.

Modelled using:

OS: Windows 7 Version 6.1 (Build 7601: SP 1)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24291 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: 7b5e18a0759de778b74d3a5c17eba9cb815035ac
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/United Kingdom (en_GB)

Thank you so much for making the model and allowing me the learn freecad. You are truly a human for taking the time to show me how to do this.