Abs props are brittle but nylon is good. But not everybody can print nylon and not everybody has a printer.
Neither am I. And even if you only use them for drag props, there is still a large majority of the club that doesn't have a 3d printer. So those people have to go without, or somebody with a printer will have to start printing them en mass for the club. My point was, ABS is fairly cheap but can break easily in a thin drag prop, requiring lots of spares. Nylon on the other hand will hold up to abuse, but is expensive and tricky to print. I don't think we'll find anybody willing to print us 500 nylon drag props and distribute them to the members of the club. But why are we even talking about this? What is wrong with disks? We've always had them, they're easy to make, and they're durable. Let's just change the rules so the disks are 'legal' and be done with the issue. There are bigger problems in our club than this...like why isn't my boat working.
I do print my own drags. Though in Taulman's PCTPE and not a pure Nylon like 6/6. I print them with discs but they could be cut free readily enough if someone really didn't want the disc backing of it that suddenly became illegal. It takes a few hours to run 16. I recently ran off 48. I don't think printed drag props (without disc) would really meet the requirements of a rule that said you have to have the same props (usable for driving) on the outboard shafts as the inboard (What I believe @VVaholic was suggesting) unless your drives were also printed.
@jadfer and @buttsakauf Its text guys. You're both wonderful people and have valuable opinions. Take a break or take hashing out your meanings to a private channel, like the phone or PMs or something.
sounds like a waste of pizza unless it has anchovies or mushrooms or something. then it can be a sea anchor as far as i care
It can be appearances and the thought of "someone is not following the rules". With everything else, why make this another area that captains get sore about (rudder shape, flatting hull for props, etc..). Outlaw disks and have props on shafts (again you can make your own, doesn't need to be printed). If you want to keep disks, then the maximum size and shape is the same as the drive prop(s) - (disk shall be no thicker than 1/8th).
Because you cannot cast your own plastic copies for non-drive shafts? Come on Johnny, you can do it. Build a box, fill half with clay. Spray mold release and fill with mold material. Wait 12 hours, flip it and repeat. If it helps I will post a "how-to" with materials.
are you using a pressure pot or vacuum chamber when you do castings with thin features like the blades?
I do use pressure to force the plastic into the thin sections, props with thin blades have a %50 hit ratio even with pressure. Disks however don't require pressure or special stuff, a fender washer will do quite well.
