QCAD.org Forum

Bonjour,

Je bosse depuis un an avec cette conception de ma future maison. Pour l'instant j'utilisais Sketchup mais cet outil commence à montrer ses limites pour faire les plans qui permettent d'échanger de l'information avec les différents intervenants: plan de masse et plans de coupe principalement. C'est possible mais c'est pas "beau", sans côtes et peu pratique.

J'ai commencé à utiliser QCAD et me demande si c'est le bon outil pour répondre à mes besoins et si je l'utilise de la bonne façon (méthodologie).

Je m'explique:
Je suis parti du principe qu'il faut modéliser le terrain (terrain en pente que j'ai déjà modélisé grâce à un relevé topo sous sketchup avec le bac à sable pour ceux qui connaissent) puis la maison et ensuite projeter les différentes vues en fonction des besoins: masse, coupe, façades, perspectives.

J'ai déjà eu du mal à modéliser de simples lignes avec des contraintes sur les mesures. C'est dire le niveau...

Bref, mes questions:

1/ Est-ce que QCAD est le bon outil pour ce genre de projet?
2/ Est-ce que c'est la bonne approche: modélisation terrain puis maison par-dessus puis création des plans: masse, coupes, perspectives, etc... ? Ou bien c'est mieux de traiter ces plans en 2D individuellement?
3/ Est-ce que vous connaissez des aides pour utiliser QCAD dans un projet d'architecture complet?

Merci d'avance pour vos réponses et votre aide,

As a word of encouragement the first addition I did was a house extension drawn with a black ballpoint pen and red for the alterations on a A4 sheet of thick paper. It was very rough but was appoved by the building authorities and built.

I would recomend you draw on paper to scale of 1:100 (then 1:50 or bigger for details) with a pencil and a good eraser! - each floor plan. Think about the floor above (or below) and how to access, where the views are for window placement etc. When you think you have a basic layout go to the local council planning department and ask for their thoughts on how to achive what you want. Best to talk to people like builders and plumbers first and ask how to simplify and reduce costs. Whatever you learn is valuable experience. Avoid getting professionals involves (unless friends) involved until you have worked most things out, as it will cost you money. Their time will cost you money. As you set your thoughts down on paper, you may want to consider - would it be cheaper to build your self or employ others? Or talk to others like plumbers. If budget or time is a consideration think, how can I build small. Say, one space with a kitchenette and a separate toilet bath room. Design so that you can add sections like bedrooms later. This may get you into something faster, and you will learn on the small project.

Generally, unless you are dealing with a problem site with great difference in ground levels, soil can be pushed around. Work on plans and sections first but have in mind the external finish appearance and as the plans come to together the elevations will come together.
Continuse to ask questions here and people will assist you step by step.

Regards Nigel

Further to the comments above, two reference books are very useful. [ideally obtain the French equivalent] These are very useful to anyone doing similar work. They can likely can be borrowed from a town or university library, or perhaps accessed via the internet. These are "New Metric Handbook Planning and Design Data" (Architectural Press U.K.) there are many editions (look for the Housing, Anthropometric data, Internal circulation sections. If permissable in the edition you find take notes, photocopy or borrow to record useful information. (I have not included ISBN as there many editions). Another publication is Rambey / Sleeper "Architectural Graphic Standards" by The American Institute of Architects. Again there are many editions.
The information will save you from planning excessively or designing impractical spaces and will save you considerable time and money. Ever square meter of floor space you save, will result in large money savings. On the other hand bad planning with tight spaces will irritate you and remind you constantly. Obviously these books are for professionals, just consider information that applies to your type of building otherwise so much information can appear overpowering.
Enjoy learning your new skills,
Nigel