**Things I can think now that I've tried making a few of these**
* Thin, single layer lines on velour/velveteen are so nice! Go nozzlesize (0.4mm) in the design and extrude the minimum (0.1mm) for standard setting print in Ultimaker.
* Very small dots jump off like crazy! Don't do very small single dots
* One layer of PLA is flexible, but it gets rigid after that real quick. If you design a relatively dense patterns I'd probably not make it higher than 1 mm for big chunks at a time.
* Could you print interlocking elements onto textile to sculpt garments?
* Grid-like structures give interesting rigid parts but need to have a function, otherwise it's just, well, hard.
* Lycra needs to be fully tensed (stretched as for as possible), or the printer nozzle goes on a date with the textile. We do not want.
* Single lines on thin stretchy lycra are a bit ugly in my sample but I think they could potentially be interesting to give textures/frills.
* Slowing down the print speed to 50% helps the printer lay down the first layer, it will stick better to textile too.
* Organza is amazing, pink is amazing. You're perfect, never change.
* It would be nice to be able to turn off the skirt line (outside design, the printer adds this). Check out how.
* Printers just don't do small intricate things all too well, so be aware.
* Stopping a print halfway sounds like a good idea, but you don't get a full shell unless it runs until the end. You don't really want to see infill I suppose. Unless you do, of course.
* Scaling after the fact in the slicer software seems like a good idea too. But thin lines will get thick if you scale up and vice versa. Your working parametric now, Lucy goosey, just push a few sliders and do things at their proper size ;-)
* The Ultimaker 3 does an automatic leveling sequence to check if the bed is level and even. It does not want to have textile stuck on top of the bed. Luckily, the PRUSA printer, the ultimaker 2+ and 2+ extended can be fooled.
##Tutorial time
Designing parametrically takes quite a different shift in thinking about shapes and designing. I have done simple parametric design using Eagle (for electronics production), Processing and very basic parametric 3D design using Fusion360. Rhino+Grasshopper definitely allows for super beautiful architectural forms and patterns. But I found out quickly that it's quite hard because it takes quite an abstract mathematical approach to shapes and relationships. This doesn't come naturally per se, so I decided to do loads of tutorials to get a grip on it and maybe tweak a few to understand the design to fabrication process.