MacLeamy Curve (Source: ResearchGate)
Traditional Workflow
In the Philippines, SketchUp is used for presentation drawings and can render quality outputs with V-Ray or Lumion although only the exteriors were modeled. Then AutoCAD is used for construction drawings since many don't know how to use the SketchUp Layout or deliver decent plumbing isometric drawings with it. Some also do the opposite, plans and elevations from AutoCAD and then imported to SketchUp to produce the 3D model by projecting the drawings. Both methods are time consuming and is not revisions friendly.
First RDDS Project 1001 with Revit
In our previous practice, due to our lack of Revit template, we used SketchUp with Rhinoceros 3D (because I loath SketchUp) to deliver the plans, exterior and interior presentations in 2 days. After approval, construction drawings were to be produced and had a decision making on what software is to be used. I and Arch. Romel decided to use Revit and not SketchUp due to difficulty in producing decent structural and MEP drawings, and AutoCAD was out of the equation. It took around 10 days to finish the working drawings, setting up Revit families, view templates, drafting views, fonts and more. It was discouraging at first since it took more time than the traditional workflow but the drawings looked better and consistent. Including ETABS first-hand use experience for column and beam sizes, it took around 2 weeks to finish the CD phase (21 sheets of A3, Permit Set). If traditional workflow was used, I estimate it around 1 week (with templates).
Project 1002 with Revit
Then the third project (second was shelved temporarily) came, I met Arch. Romel on Saturday and wanted presentation-grade plans, elevations, section and renderings on Sunday early. With Revit, the presentation model was done in 7 hours and a hour with Lumion (both had templates from the second project). In 8 hours, presentation drawings were done.
Project 1003 with Revit
The same day (Sunday), the revisions were made and was approved by the client and so the CD phase began. Since the presentation model was made in Revit, the documentation was much faster. We doubt that I could do the drawing until next week.
Sunday: ETABS analysis, finished ARC drawings and started STR
Monday: Finished STR and started ELEC
Tuesday: Finished ELEC and started PLUM
Wednesday: Finished all drawings. Updated website.
So in 4 days, the CD phase was finished (21 sheets of A3, Permit Set). The time cut from the first project was more than two-thirds which was great improvement. But it wasn't fast enough.
Project 1002 with Revit (cont.)
Then the second project hit the CD phase. They want it on Sunday on the same week, Revit presentation model was already done so it should be a breeze.
Wednesday: ETABS analysis, started organising and architectural
Thursday: Finished ARC and STR (truss model accuracy had to be improved), started ELEC.
Friday: Finished all drawings.
It took 3 days to finish the drawings (20 sheets of A3, Permit Set). But in bigger picture, two projects were done in a week so in my view, it was impressive. But still the time it took was still comparable with the traditional workflow. But if revisions occurs in CDP, and schedules and quantity take-off were utilised, then traditional one is out of the question.
Project 3001 with Revit
A renovation interior project done in half a day.
Project 3002 with Revit
A small commercial building project done in 5 days with revisions.
Project 1004 with Revit
A small residential building project done in 5 days with revisions.
Conclusion
I've read a forum post in Archinect that he could do all the drawings in 12 hours since the client pay $1000 only. Is that supposed to happen in USA? In other forums, some says for 3-5 days, another says 100-500 hours. My New Zealand friend is critical of CD drawings produced in the Philippines, how the details are so minimised compared back to NZ.
I have done about 7 projects utilising many of the tools of Revit disciplines. Why is this part 1? I have yet to use the schedule part of Revit which is I'm working on it with the expertise of Arch. Romel in estimating. Estimating is one of the time-consuming part of the projects.
It took me 2 hours to write this post. Thanks for reading!
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