Tile Grid Technique, Newb.

Post here for help on using FreeCAD's graphical user interface (GUI).
EoghanTyrrell
Posts: 2
Joined: Sun Sep 16, 2018 3:43 pm

Tile Grid Technique, Newb.

Postby EoghanTyrrell » Sun Sep 16, 2018 4:05 pm

I'm having trouble creating a tile grid of squares.
Each square is 600mm x 600mm.
However as can be seen from the picture, 4 squares side-by-side aren't adding up to 2.4 meters long.
It's resulting in a length of 2.42 meters.

Is this due to line thickness? Do I need to account for line thickness?

I realise I could draw the grid as one large rectangle with appropriately spaced lines,
but it would be nice to have each tile as its own object . I could then have different configurations for different sized grids etc.
Screen Shot 2018-09-16 at 17.01.30.png
Screen Shot 2018-09-16 at 17.01.30.png (22.19 KiB) Viewed 64 times

OS: Mac OS X
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: 5.10.1
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/Ireland (en_IE)
chrisb
Posts: 10412
Joined: Tue Mar 17, 2015 9:14 am

Re: Tile Grid Technique, Newb.

Postby chrisb » Sun Sep 16, 2018 6:04 pm

Hi EoghanTyrrell, welcome to the forum.
you should attach your file so we can have a look where the gain comes from. It's not normal, that's for sure.
EoghanTyrrell
Posts: 2
Joined: Sun Sep 16, 2018 3:43 pm

Re: Tile Grid Technique, Newb.

Postby EoghanTyrrell » Sun Sep 16, 2018 6:29 pm

Thanks for the quick reply. I have since solved the problem.

I had my decimal points resolution set to 2.
I manually drew the first square to the "correct" dimensions (0.6 meters).
When I increased the decimal resolution it was revealed that I actually drew a square of length 0.604m.

I'll be sure to have a higher decimal resolution showing from now on. And type in the dimensions when I need to be precise!
chrisb
Posts: 10412
Joined: Tue Mar 17, 2015 9:14 am

Re: Tile Grid Technique, Newb.

Postby chrisb » Mon Sep 17, 2018 1:50 am

EoghanTyrrell wrote:
Sun Sep 16, 2018 6:29 pm
And type in the dimensions when I need to be precise!
Good to hear you got it sorted yourself. You should always fully constrain your sketches.