Change The Scale of Your PI PDF Plan

We've been receiving many question which were actually similar questions referring to:

• "Can I change the scale of my plan?"
• "Is it possible to up-scale my PDF plan?"
• "Does it require lots of efforts to enlarge the plan and make larger plan based on the plan I have?"

            etc.

​So, with this article, we will try to show you on how it will be performed and how much efforts you will have to put to enlarge the plan. 

​
The Facts
​Based on the fact that all the designs are targeting to be built based on 5 to 6 mm depron/polyfoam thickness at 1 to 1 scale, it still gives the chance for builders to slightly enlarge the scale for builders to build a larger plane, up to a certain point. The reference below should give a clearer picture of how should we proceed with the process.

For your information, all PI parkjet designs are based on 5.5mm foam sheet (we picked the value in the mid of 5mm and 6mm) so it can be built by 5 or 6mm foam sheet without any issue, specially with registers and tabs. In order to make a larger plane from a base design, we would recommend few things:

1. Make sure you know the thickness of your foam sheet (preferably 5 or 6mm)
2. Use the A0 untiled plan and go to a nearby print shop that is able to print on A0 size paper
3. Ask the print shop to enlarge the scale 10% bigger (usually set at 110%)

​The Works
​If we're using 6mm foam sheet, that would be the best to enlarge your built. At the left picture, it shows the 100% scale of the register at 5.5mm. If the print shop is enlarging it at 10% larger, then the register width goes up to 6.05mm which is suitable for 6mm depron. Of course it would take larger printing paper than A0, but we could cut each pattern later and place it on the foam sheet.

However, If we enlarge it to 50% bigger than the base scale, the registers/slots width will go to 8.25 which is way wider than the thickness of the 6mm foam sheet. This could give us issue unless, we could make some mods by cutting the registers' width down or close to 6mm. This would require more patience and work as we need to address which inner side we need to cut so we could have close to 6mm width.

If you need further information on this, feel free to leave some comments and/or questions so we could discuss it together. Hope this would help in giving some information to builders who look forward in having different built scale on any plan the have.