I need to Scale Up/Down a Supported Form File


#1

I would like to be able to scale up a supported .Form file after I have created it.

Each time I build a set of parts for a kit, I then offer it for sale in its original form, but very often customers are requesting the same design but at a different scale. This is about 30-40% of my business. The scale varies from 65% of the original size to 150% of the original size. If I could scale the .form file, then I would save myself hours of time with each new project. As it is now I have no choice but to scale up the STL files and then re-support the entire project.

Is there a solution to this problem?

Alternatively, if I could simply output the supported form file into an STL then I could reimport that and then just scale it. I know that is unlikely to happen, but I know the fist one would solve my problem.


#2

Have you tried the ‘Size’ tool:
image

I’ve used this in the past for printing casting patterns that need to be scaled up to allow for shrinkage.


#3

As mrwakefield says, PreForm allows you to scale.

PreForm is pretty good about keeping track of scale parameters. For example, if I import an .stl, scale it to 120%, then save the .form file, the next time I load that form file it will be pretty much in exactly the same state as when I saved the file. i.e. the object will be scaled to 120% original import size.

So if you were so inclined, you could save .form files that are pre-scaled to all the standard print sizes you need.


#4

This is what we have been doing with prototypes and proof of concepts for some customer prints before heading to production.

After using calipers to measure dimensions, the print that I made Friday came out with 3% or so of original specifications, but that may have been from some aggressive post production with gradual sanding up to 2000 grit.

Overall, pretty impressed with the auto scale.