Messograf Caliper Pen Grip

thingiverse

Let's face some cold, hard facts. The Messograf caliper pen isn't especially practical. It's more of a graduation gift for someone heading off to architecture school or a technical institute. Nobody expects you to really use it. As a pen, it fares slightly better, but here's another cold, hard fact: the damn thing is a pain to hold. I feel like I'm holding a small sword that hasn't been sharpened. Sure, you can get ergonomic grips for pens, but the Messograf has that miniature broadsword shape to it, so a premade one won't fit very well, and you'll have to grip it unnaturally tight to make it work. Printer: Micro M3D Rafts: No Supports: No Infill: 25-60% Notes: Printed this twice at different infills. Best advice I can give is obviously the lower the infill the more rubbery/grippy it's going to be. The first one was average infill (no specifics given the M3D application, let's say about 60%) and was a very snug fit; needed both hands and a table to slip it on and off the first time. It got better, but I'd say only go thick if you intend to do more writing than measuring. If you're going to switch between frequently, I'd suggest either a lower infill or even scaling it up by a hair. I don't recommend making it hollow, however. Unless you can put a horizontal layer in the middle of it, it's likely to fall apart if you grip it too tightly. How I Designed This Merely 3 primitives, some smart scaling, and a few fillets. The only drawback is you can't use the caliper pen to measure itself... unless you have two ;P