CCSG Posted November 24, 2020 Posted November 24, 2020 I built a prototype of a narrow gauge motor yesterday. I’m happy how it works so far as only one wheel is powered right now as I only had one worm gear. When I started building this I decided to emulate the drive trains of many model locomotives that I’ve seen which involve a motor with a worm gear 90 degrees to the powered axle. I tried that design initially and the locomotive was way too slow. So this build, I sped up the RPM of the worm gear by adding gears. The plan is to build the battery into another car that is coupled and powered through a universal gear as I’ve seen in other prototypes. These two “cars” will then push the “locomotive” which is currently a WIP. Quote
Lok24 Posted November 24, 2020 Posted November 24, 2020 Very nice! Perhaps you may want to have a look at me soloution: https://www.eurobricks.com/forum/index.php?/forums/topic/79312-narrow-gauge-lego-train-including-points-etc/&tab=comments#comment-1515112 Scrolling a little bit down you find a picture of the engine Quote
CCSG Posted November 24, 2020 Author Posted November 24, 2020 Yes, I drew inspiration heavily from your design. I had to work with the Technic parts that I recently acquired secondhand and my own creativity. I've had narrow gauge track laid for probably 2+ years now and this is the first time anything has completed a circuit. I did a lot of testing last night and it continues to work nicely. Quote
Mike D Posted November 26, 2020 Posted November 26, 2020 Hey - could you please post some photos of the bottom of your solution? I am trying to figure out what makes the wheels not, well,,, come off from this solution and I'm stuck :/. What keeps them attached to the chassis? Quote
CCSG Posted November 28, 2020 Author Posted November 28, 2020 Spoiler http://309220CC-5247-44E2-999F-297F7CC8D025 by Patrick Kramer, on Flickr 309220CC-5247-44E2-999F-297F7CC8D025 by Patrick Kramer, on Flickr 955E1961-DAFD-4040-9A9C-1C641E14DBEC by Patrick Kramer, on Flickr Quote
Paperinik77pk Posted November 28, 2020 Posted November 28, 2020 Great work! I love its smoothness! I'm curious to see the final locomotive!!! Quote
CCSG Posted November 30, 2020 Author Posted November 30, 2020 You’re welcome My Mike D. It does need a little refining but plan on updating when I do. I have to put together a BrickLink order to get some parts before I do that. I haven’t ordered from BrickLink yet and feel it will take a little while as I generally always like to make sure I have everything in my basket before I checkout to save on shipping. I’ve never really built anything with Technic parts before so kind of feel I have no idea what I need. Hope the pictures help your build and that you will share some pictures. Quote
Reker1000000 Posted November 30, 2020 Posted November 30, 2020 Wow! I really like the design of the driveshaft, it's interesting that it uses a worm drive. I would expect a worm drive to go pretty slowly but since you geared up the motor it looks to go at a pretty decent clip. I would definitely tinker with one of these, but alas, I don't have any narrow-gauge tracks. I do own 12v track but the radius of the curves isn't the same. Quote
Lok24 Posted November 30, 2020 Posted November 30, 2020 7 minutes ago, Reker1000000 said: I do own 12v track but the radius of the curves isn't the same. You can use them ;-) Look here: https://www.eurobricks.com/forum/index.php?/forums/topic/79312-narrow-gauge-lego-train-including-points-etc/&tab=comments#comment-1515112 Quote
Reker1000000 Posted December 1, 2020 Posted December 1, 2020 Ooh... looks like an interesting project, will have to look into it! Thank you so much Lok! Quote
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