Thanks, this should hopefully clear up some of the arguments around polyamide printing.by Acumen - General
I've seen very little mention of it on here, but check out this study on using silver nitrate with ascorbic acid as a reducing agent to produce highly-conductive electronic components from an inkjet.by Acumen - Developers
Yeah, totally, dude. All the people on the experimental, hobbyist, open-source 3D printer project is just a bunch of denialist cowards unwilling to try anything new. You should insult them more, and that will get them to like you.by Acumen - Developers
I was actually thinking about combining the R&P and telescoping arms designs. Rather than using fluid actuators, it would simply be a piston-type design with the rack as the inner cylinder, and the outer cylinder having a small cutout near the end for the pinion to contact the rack. This would both allow for the space-efficient design of the telescoping rods, while allowing use of a rack wiby Acumen - Delta Machines
Why would R&P be imprecise, other than the fact that it's RP? R&P is more precise than belts.by Acumen - Delta Machines
Annirak Wrote: ------------------------------------------------------- > You might need to use telescopic arms, like this > one does > I wonder if something like that could be done with RP rack+pinions?by Acumen - Delta Machines
What's offensive about what bobc wrote, other than rightly stating that you don't understand open-source? The point is that open-source benefits everyone, and by open-sourcing your own work, you encourage others to do so, thus bringing benefit to yourself, as well. Intellectual property is an entirely imaginary concept that only works if others accept that it exists, so why would you get mad whby Acumen - General
EDIT #2: Okay, I figured it out, I think. The spindle for the cable would be threaded like a screw, to keep the cable at the same r position, and the motor would be mounted in a threaded drum that would translate the spindle to keep the cable at the same z position. This way, the cable only changes in theta. The spindle would have the cable mount on the furthest point from the motor, a set scrby Acumen - Reprappers
Thingiverse is a good site, but it is hard to differentiate between things that are just for fun, and things that are useful. It's also not that great for project collaboration like Github is. Someone on the Reddit page mentioned Amazon-like categories, which I like. That way, if people make lab instruments that can be RP'd, it will be much easier to find. 3D printing is fantastic for scienceby Acumen - General
billyzelsnack Wrote: ------------------------------------------------------- > I disagree that rigidity is important for quality > prints. Consistent flow and consistent layers > heights are the most important factors IMO. > Neither requires a rigid frame. Frame rigidity affects how accurately the affector is positioned, so it certainly does affect print quality.by Acumen - General
If melting nylon produces hydrochloric acid, wouldn't this bite the inside of the hot end and possibly other hardware on the machine? Besides that simple concern, dioxins are a persistent pollutant and very bad for the environment, so even with a fume extractor, we should avoid melting nylon.by Acumen - General