The Gamma - Printed in Place RC Car - version 1.8 by Under_Engineered

Last crawled date: 3 years, 1 month ago

Improved version of the Gamma printed in place RC car.
Print instructions:
-Orient the print so that the gear is closest to the bed. Look at the picture of the model on the slicer for reference.
-Supports: No
-Raft: optional
-Layer height: 0.2mm
-Have good bridging settings
While not necessary, I do recommend gluing a 2mm diameter metal shaft inside the rear axle to reinforce it, especially if you plan on running the car on asphalt.
4 chassis available:
rear motor chassis, 98mm wheelbase: GammaRear98mm.stl
rear motor chassis, 80mm wheelbase: GammaRear80mm.stl
mid motor chassis, 98mm wheelbase: Gamma98mm.stl
mid motor chassis, 80mm wheelbase: Gamma80mm.stl
Improvements over the previous version:
1) Simpler motor mount system
2) Direct drive. One less gear causing friction.
3) More space for electronics
4) Steering and front wheels are easier to print
You will need a fa-130 size motor and a 0.5 module 8 tooth pinion gear.
https://youtu.be/-rQZyL4o8Pg
---ELECTRONICS---
These are the electronics that i use.
-Flysky GT3B Transmitter and Receiver
OR
-Fkysky GT3C Transmitter and Receiver
-20A brushed ESC or 30A brushed ESC
-3.7g servo
-WLToys F949 500mah 1s lipo battery or similar
You might need to change the plug depending depending on the ESC you bought. Typically they use a JST plug.
If you want more power, go for any 2s lipo with 300mah or less (more mah might be a bit too large for the chassis).
-a charger compatible with your battery
-130 size motor
There are many cheap ones available. You can do a quick search on amazon/ebay/etc. to find the one that you like.
I like Tamiya motors. They are reliable. I recommend one called Torque Tuned. You can find it by searching "TAMIYA 15484"
If you search for "TAM75028" instead, you will get one that's a little slower, but comes with the pinion that you will need for this build.
---TIRES---
Kyosho Mini Z tires
OR
Tamiya Mini 4wd Small Diamater tires.
You can find Tamiya tires in both rubber and a very grippy foam called "Reston". I personally like the foam ones a lot. You can find them by searching "Tamiya 15388"
You could also 3d print some with tpe or tpu, but they don't work as well.