What are the advantages of CAD drawings over hand-drawn ones?

The advantages of CAD drawings over hand-drawn ones is that they have a clear, professional look about them. The presentation is good, and drawing on computer is quicker to amend and is easier to manage. Work can be done on existing drawings, and adapted to illustrate alterations without having to draw from scratch.

Do you have to visit the site to prepare drawings or can they be done if the client sends photos?

When it comes to preparing drawings with photos, photographs are useful but never sufficient to provide a full brief for which there are three options. 1 Site visit, 2 Verbal brief & 3 Existing base drawings and sketches showing new proposals. It is up to you on how you set this out and your client does not need to send you photos, unless they want to show you a pacific photo they may wish to email you about.

Do you need to submit drawings to obtain planning permission?

Submitting drawings to obtain planning permission is required at all times. Without this the planning authority would not be able to allow you to obtain planning without seeing what you have in mind to propose by carrying out the alterations you require.

Can you use colour and in what circumstances would you use it?

Using colour in certain circumstances is a good way to present the layout of the drawings in whatever way is required. Most drawings are in black and white, but colour is always an option, that can be simply applied. It is useful to illustrate in particular features when required.

Is it possible to turn old hand-drawn plans into CAD drawings?

It is possible to turn old hand-drawn plans into CAD drawings, however it’s not straightforward. Hand-drawn plans can only be scaled off and plotted onto CAD by hand. However, this will take far longer to do by scaling by hand, providing the scaling is accurate first on your hand-drawn plans before drawing them on to CAD.

What scale do you use for CAD drawings?

The Scale tool is very important when it comes to CAD drawings. Both 1:50  & 1:100 is used for floor plans & elevations. 1:250, 1:1250 and 1:500 are used for site plans and 1:20 is used for illustration of detailed drawings, 1:10 is also used for sections. Note: a North point is also very important when it comes to locating North on all plans apart from your section drawings.

Are there any specific rules you have to adhere to for CAD drawings?

There are no rules as such when working with CAD drawings, however, you do need a license for Cad which is run by Autodesk which you pay on a yearly basis.

Our thanks go to Howard Gould of HG CAD services for supplying this article.  Contact 07702 062715 /   01825 508968     

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