Smooth curves on the HoloLens
You can use the grasshopper MeshPipe component to create mesh pipes of curves you want to display on the hololens and this will allow you to exactly control the resolution / faceting of the curve as well as its thickness and colour.
Working at bench height
You will get a better sense of the 3D form of the curves you are fabricating if you can easily view them from multiple angles. This means working at bench height so you can view curves both in elevation and from top-down. It will be very difficult to precisely fabricate parts if working on the ground.
You can hide your FologramQR code layer in Rhino so you don’t see the text on the HoloLens. You can also switch off the hand mesh preview from the the Settings in the Fologram menu.
You want to develop techniques that allow you to maximize the precision and craftsmanship of your prototype - accurately fabricating bends and avoiding introducing kinks. This will be easier to do if you fabricate parts one by one and experiment with different forming methods and use a hologram as a guide to check for precision.
Keep placement QR code and physical part fixed to the same work surface
James and Jordan did a good job of this
E.g. fix your part and the qr code to a piece of MDF or ply. This way if you accidentally move your part or code you will easily be able to re-allign them by re-placing. Otherwise you will constantly be struggling to keep things aligned.
Whenever you aren’t using the hololens, keep it plugged in
This ensures you (and the next group) will always have a fully charged headset. They take hours to charge so this is really important.