Some parts I made.

[LohringMiller]

According to what I've read, PLA is the strongest of the common materials. However, it is brittle so it may seem to break more easily. PLA+ is a little weaker but more forgiving. The strength in FDM printed parts is along, NOT across the layer lines. More layers on the outside is worth a lot more than a higher infill density. I've printed several generations of sponsons in PLA+. The early ones, printed upright failed. The latest ones are cut into 4 pieces; across the middle and along the centerline. They are printed flat on the centerline cut. I use 4 outer layers with a 5 to 10% infill. The doubled up centerline bulkhead adds to the longitudinal strength when the pieces are glued together. If you feel you need real strength consider the Prusa PC blend with carbon fiber filler

Lohring Miller
.

 

[Grimracer]

well.. now thats going to be nice.. very SIMPLE design and great fit.

Home run!

 

[longballlumber]

While I was out snooping around for a Resin Printer, I almost bought some TPU. I need to try it eventually. Although, I thought it was much softer than 90 on the scale. I could have swore, someone had parts that were very soft and pliable... like in the 40's on the durometer scale?

 

[Grimracer]

Not sure what you were looking at.. none the less I have both 80ish and 90ish and they are stark in difference.

The part above is Polymaker 93 The lower thicker wall section is quite firm.. the strap for the tank quite moveable. It really has more to do with structure.

The best part.. this stuff is incredibly strong. UN REAL.. if built right you will NEVER grab an edge and rip it. No need to glue the build plate either.. nice to work with.. ya DO NEED a direct drive tho.

Grim

 

[Samuel Hagan JR]

Here are some examples of parts I have made. I try and only use printed parts in low stress areas.

I also find it VERY valuable for fixtures, drill jigs, etc...

One isn't the picture of the actual part, but an image of the CAD model. It was a vertical servo mount I did for a friend and it seems to be holding up so far.

View attachment 300014View attachment 300015View attachment 300016View attachment 300017View attachment 300018View attachment 300019View attachment 300020

What software do you use Mike. Did you draw the servo to match the part?

 

[longballlumber]

What software do you use Mike. Did you draw the servo to match the part?

Hey Sam,

Mechanical Design and CAD modeling are my day job so luckily I have access to some higher end CAD tools. Creo (formally know as Pro Engineer) is what I use on a daily basis.

Savox does a good job of showing the dimensions of their servos. I simply recreated the servo being used and designed the mount around the servo. Here is an example.

https://www.savoxusa.com/collection...deal-for-traxxas-1-16-scale#technical-details

 

[Samuel Hagan JR]

I need to watch some more tutorials on Fusion 360. I made the main part. Then when I tried adding a second component i had a lot of difficulty trying to make the top part of what I was trying to do. So I just started with a new sketch.

 

[Samuel Hagan JR]

Came out better then the first. I rounded the edges to give it a more finished look. I need to see if there’s any local classes on it.

 

[Samuel Hagan JR]

 

[Samuel Hagan JR]

I did this last week. Came out pretty good. I’m getting better at Fusion.