AutoCAD 2013/2014 DWG Format

[#1]

Hello

I`m inexperienced at the moment.I have started a sketch but if i change dimensions say on the long thin rectangle the sketch falls apart..Also if i change a dimension on the top section of the sketch the lines move....what am i not doing

Lou

[#2]

Hi,

because the top section is not bound to the lower one, with other words it's not fully contrained.

BTW: please use the modelspace to design your model (not the paperspace/layout).

- alfred -

[#3]

Are you familiar with parametric geometry constriants and dimensions?

[#4]

Hi

Is there a command on the screen which advises whether the sketch is fully constrained or how many constraints are needed to fully constrain

Regards

Lou

[#5]

Auto Constrain will tell you how many were missing.

But really - you should know what needs to be constrained (there is no auto-constrain out on the shop floor).

You have a lot of repeated dimensions - use symmetry and equal constraints.  Use geometry constraints before parametric dimensions.