Carburator body / sketch

[Edduardo]

Hello everyone! I wanted to know if it´s possible to build this up on FreeCAD. I think it doesn´t have the whole info to do it. What do you think? Also, how do you build a "French curve" like the one in the photo (just if it´s possible, I mean). Thank you for reading (:
PD: What is all that 10BA7 thing? I didn´t get what the blueprints were talking about :/ What nomenclature is that?


OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13541 (Git)
Build type: Release
Branch: releases/FreeCAD-0-17
Hash: 9948ee4f1570df9216862a79705afb367b2c6ffb
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: Spanish/Ecuador (es_EC)

[chrisb]

This seems very well possible. What you call a french curve could be part of a conical section or a B-spline, used as section of a revolve.

[bejant]

Hello everyone! I wanted to know if it´s possible to build this up on FreeCAD.

Sure, it doesn't look to be very difficult.

I think it doesn´t have the whole info to do it. What do you think?

I see at least 3 places where I think dimensions are missing; they'll be apparent when you create the model.

Also, how do you build a "French curve" like the one in the photo (just if it´s possible, I mean).

It's possible, but to me the term "French curve" is vague.

What is all that 10BA7 thing?

It's obsolete - google it and you'll see.

I normally would give better answers but here I have to wonder if this is a homework assignment.

[wandererfan]

Also, how do you build a "French curve" like the one in the photo (just if it´s possible, I mean).

French curve. Mine is stored beside my slide-rule.

I guess it means "I don't know the equation of the curve, just make it smooth and good looking and everything will be fine".

A BSpline would be your best tool.

[Vincent B]

Could be 7 by 10 or 10 by 7 inch?
https://growyourownclothes.com/2014/10/ ... ip-curves/

[Edduardo]

I did it. But too ne honest, the french curve part wasn´t the best. It doesn´t look the same, but still is a good try, I guess. Also, don´t know if it´s my mistake but one of the parts crash with another at the top. Is one of the covers, the one that has a little lever attached to it. I cheked the measures and everythings seems pretty much ok, so... Well, I gotta check it again.