Merry Christmas 2019 "Gift to All"

thingiverse

I designed this in Blender 2.80 as a gift to all for the year 2019, and it's a follow-up to last year's version (you can find that one here: https://www.thingiverse.com/thing:3220585 , and the solar version is located here: https://www.thingiverse.com/thing:3225337 ). I listened to what people were saying and started with a circle in Blender, creating this entire train from scratch. It's designed to work with as many printers as possible, featuring a 200mmx200mm base that requires no support structures at all. I wanted to make it as simple as can be, even for beginners who are new to 3D printing. This version is complete and fully tested, and I've included hollow tubes in several locations so you can add electronics wherever you prefer - inside, outside, or both. I made an update on November 6, 2019: christmas-train4-gear04.stl is a revised gear for printers that are less accurate. Schematics for setting up the motor can be found here: https://easyeda.com/shermluge/microwave-motion-and-on-off-circuit . Adding LED's with resistors as low as 1k-2k makes it so I only pull 40ma through the Mosfet when the motor is on. Here are some parts and where to get them (at a very low cost): * Motor: https://www.ebay.com/itm/New-Micro-Gear-Box-Speed-Reduction-Motor-Electric-Geared-Motor-6V-50-to-300RPM/123598737052?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 , https://www.amazon.com/Yosoo-Reduction-Engine-Gearbox-Replacement/dp/B01BBSXDGW/ref=sr_1_6?keywords=Micro+Gear+Box+Speed+Reduction+Motor+Electric+Geared+Motor+6V+50+to+300RPM&qid=1563916058&s=gateway&sr=8-6 * Motion sensor: https://www.aliexpress.com/item/32816449998.html?spm=a2g0s.9042311.0.0.27424c4djnvpJh , https://www.amazon.com/Maxmoral-RCWL-0516-Microwave-Induction-Intelligent/dp/B07S221PB4/ref=sr_1_6?keywords=rcwl0516+microwave+radar+sensor&qid=1563916285&s=gateway&sr=8-6 , https://www.ebay.com/itm/RCWL-0516-Microwave-Radar-Sensor-Module-Human-Body-Induction-Switch-Module-CA/142383691574?hash=item2126bab736:g:vusAAOSwaEhZGYEG * Electronic switch: 2N7000 mosfet, 10k resistor, 220 resistor * Capacitor for motion sensor if used - put a 100nf capacitor on C-TM and jumper on microwave motion to change from 2 seconds to 30 seconds. For 10 seconds use a 22nf capacitor. * To adjust distance, you can add a 680k ohm resistor on R-GN to change the range from 7 meters to about 3 meters. Here's an assembly video: https://www.youtube.com/watch?v=XLeWQsXkJHY Merry Christmas and enjoy! Sherm More of my designs that are free can be found here: https://www.thingiverse.com/shermluge/designs , and I want to thank 3D Printing Professor for his help: https://www.youtube.com/watch?v=JGYb9PpIFSA