Houndpup Rc
Legendary member
Got the firewalls printed out!!
FTFC 25’ MONSTER SCALE CHALLENGE - Houndpup Rc and Patriot Rc
- Thread starter Houndpup Rc
- Start date
Houndpup Rc
Legendary member
I didn't know that you don't want to pause while printing, especially with PETG so I have a small crack form, but I just filled it up with some CA glue and I can't break it so it should be fine!
Flying Monkey fab
Elite member
Yeah, I've had prints come out fine but you want to avoid it is you can. I'd be interested in a list of most forgiving to least forgiving on that.
Houndpup Rc
Legendary member
Yup
But I was really impressed at the strength of the CA and and it is SOOOO nice to finally have a 3D printer!😁😁👍
Houndpup Rc
Legendary member
Did a thrust test today and I got 10lbs on a 16x8 prop..And it only drew 40amps!...I think we are going with some 20x6 props which should give us about 15 lbs of thrust apiece, giving us a all up thrust off 30lbs!....The plane will weight about 10-15!
telnar1236
Elite member
Generally the higher the viscosity of the liquid filament in the hot end and the lower the warping, the better. It also depends on what your printer does when it pauses - if it just stops and leaves the head in place it's pretty much always going to fail, but if it retracts the filament and moves the head away from the print horizontally to somewhere safe, it's more likely to be ok. PLA is probably the most forgiving on pausing, and LW-PLA is pretty good too so long as you have it extrude some extra filament when it restarts to compensate for leakage. I don't do much with PETG so I don't have too much experience there, but I suspect it should be ok most of the time too. ABS is ok with them some of the time so long as the chamber stays hot but frequently the last bit of filament forms a spike which the print head collides with when the print restarts or the print warps and has the same effect. I've had very poor luck with low hardness TPU as well on the few occasions I've had to deal with pauses during the prints, but most of my TPU prints are smaller parts so it hasn't come up much and the failures were with printer settings that left the head in place. I suspect nylon would also not be great since it warps even harder than ABS.
Overall, though, I think the big driver behind the reliability of pauses is the printer settings more than the filament - anything that results in the hot end staying in one place on the print too long is bad as is anything that leaves a spike on the print, anything that results in the print warping, and anything that results in the too much filament seeping out from the nozzle when its paused.
telnar1236
Elite member
That's a ton of thrust and a very heavy plane - definitely watching this one
telnar1236
Elite member
That's one of the nice things about 3D printed parts - they almost always fail along the layer lines and you can just squeeze a bit of CA in and they're as good as new unless the damage is extremely severeYup
Houndpup Rc
Legendary member
Yeah, that's really nice! (I had to do that with my Interceptor)
Houndpup Rc
Legendary member
Yup!😁
Houndpup Rc
Legendary member
When you push pause it goes to a different spot but that time it just got unplugged....
Houndpup Rc
Legendary member
Got one! 👍
Mr Man
Mr SPEED!
Sweet!
Houndpup Rc
Legendary member
Got our second motor, and the batteries will be coming on Friday! (We got a couple 6s 5200mah's)
Flying Farm Kid
Well-known member
what combo are you using for motor esc batttery, we are still looking around bc we dont want to buy 4x the wrong parts lol
Houndpup Rc
Legendary member
Motor: https://www.ebay.com/itm/174839148764
ESC: https://amzn.to/4oyNype
Battery: https://amzn.to/3XBInK7
And then I am just using a 16x8 prop and I got 10lbs of thrust when I tested it on my 3D printed thrust stand I designed but I may go to 20x5....
Flying Farm Kid
Well-known member
Thanks!
what motor size is it there are a couple?
Houndpup Rc
Legendary member
Oops, sorry I forgot to mention that! So we are using the 5065's but one of the smaller ones might work for you as well as not draw as many amps...
Houndpup Rc
Legendary member
Pics!
