3D printing parts and materials help

[QuesoDelDiablo]

I print Nylon on a box stock Prusa regularly.

To be clear, I'm a mechanical engineer working at a university and running a fleet of about 18 printers for the school so please don't try to call me stupid or tell me I don't know what I'm talking about.

 

[QuesoDelDiablo]

And truth be told, I am probably smarter than most here.

Arrogant? Sure. Unjustified? Not one bit.

Sent from my Pixel 2 using Tapatalk

You can take that attitude and leave.

 

[themountain]

PETG is a better alternative to ABS IMO.

Why ??:|

 

[svt923]

Why ??:|

PETG doesn't shrink and warp anywhere near as much as ABS, it sticks to most bed surfaces better, and doesn't give off toxic fumes while it prints.

 

[QuesoDelDiablo]

Why ??:|

It has most of the mechanical advantages of ABS while being virtually as easy to print as PLA and it doesn't emit styrene gas so it'a bit safer to print at home.

I've switched to PETG almost exclusively and I love the stuff, I keep a little PLA around but once my supply runs out I probably won't buy any more. The only downside to PETG that I've found so far is that vapor smoothing doesn't work (this is actually a bit of a discussion because there may be some chemicals that work for it but volatility is a concern), so sanding and fillers are the most common methods for post processing.

 

[themountain]

Thanks "thumbsup"...the cheese from hell always delivers:twisted:

 

[Robbob]

And back on topic ....thank you guys who kept it on topic here. "thumbsup"

 

[QuesoDelDiablo]

Thanks "thumbsup"...the cheese from hell always delivers:twisted:

Lol, I try to help where I can

 

[Voodoobrew]

Most sub $1000 printer have a sleeve of pfte in the hotend, it's like a $5 part that can be replaced with all metal. It won't handle nylon Temps. You might need to print at slower speeds to keep the Temps up on some units too, or replace parts the get more heat.

Petg is pretty good and has lower Temps.

https://www.thingiverse.com/thing:2942759
I designed this car and made it in petg, it took a couple versions to find the weak points. But when it breaks just build up that area and reprint till it lasts.

The body is close to 2 years old I think and it has some breaks but the car is like 10lbs with all the wheel weights so when it falls 3ft ont a rock its a pretty hard hit. But it takes it.

Printed on an anet a8 $200 printer from 3 years ago. So $200 gets you a better printer now. It has a 220x220x240 build size and I wouldent go smaller if you want to print a whole car.

__________________________
Handy gearing spreadsheet