Posted August 21, 201113 yr Basic instructions for the screwdrive are here.Built to take advantage of the once-in-lifetime snow we just had. Also entered in the Technic Challenge.It features two motors, which drive a pair of screws. It is designed to travel across soft surfaces, such as snow. It can move forward/backward, turn left/right (by varying the relative speeds of the screws), and side-to-side (by spinning the screws in the same direction).
August 21, 201113 yr Good work I was wondering about how to do a screw drive in lego myself after watching it being used in an episode of Scrapheap Challenge (they used it to propel a boat) It is a very simple thing (after you see how someone else dose it). Do you think it would work on mud (That all we have in Melbourne (OZ) at the moment) Edited August 21, 201113 yr by Phantom59
August 21, 201113 yr I am deeply impressed! Does it work in deeper snow too? you should make instructions in LDD, to sel them! If you want i can make LDD instructions
August 21, 201113 yr Wow thats fantatstic and extremely original!! I will deffinitly try this idea when winter coems around my area again. tim
August 22, 201113 yr Author Wow, thanks everyone! Phantom59: I didn't try it on mud, so no idea. I do know that It doesn't work well on deeper snow (ie, it sinks). Larger diameter screws would help - perhaps these, or if you want to go crazy, even these, but both are so large that the thread (of the screw) would probably have to be made of multiple parts.
August 22, 201113 yr perhaps these, With pin with 1 stud With mini-fig spanner into the stud... Then this can hold the flexible pipes at a angle...
August 22, 201113 yr Epic! This is great! superb playability in a small package! At first I was wondering, snow?!?! But then I saw NZ :-) I guess for deeper snow movement, the snow should be a bit "wet", not powderey as the area where it has contact is quite small and it would sink to deep I guess!
August 22, 201113 yr Awesome little toy you have made there. What happens when the snow is deep. Does it simply dig itself down?
August 22, 201113 yr The song made me chuckle It looks hilarious when moving around! Edited August 22, 201113 yr by Sokratesz
August 22, 201113 yr That's actually pretty cool. The music was perfect for this thing. Very entertaining. Great Job!
August 22, 201113 yr On a side note, from reality. This is an old promotional video where a Fordson tractor was fitted with screws instead of wheels. http://www.youtube.com/watch?v=zBjlSJf4274
August 22, 201113 yr Author With pin with 1 stud With mini-fig spanner into the stud... Then this can hold the flexible pipes at a angle... Yes, but the pipes have a circular, rather than flat cross-section, which would make 'pushing' against the snow difficult. The soft axles I've used are a bit less useless, but something like minifig spanners could only be attached at their endpoints... I guess for deeper snow movement, the snow should be a bit "wet", not powderey as the area where it has contact is quite small and it would sink to deep I guess! Exactly. Awesome little toy you have made there. What happens when the snow is deep. Does it simply dig itself down? Pretty much - here's a video in deep snow. Edited August 22, 201113 yr by VMLN8R
August 22, 201113 yr I am glad you made this idea working. We discussed it last year on the Czech forum and the guy who tried to build it gave up. Thank god you did not. Amazing model.
August 24, 201113 yr On a side note, from reality. This is an old promotional video where a Fordson tractor was fitted with screws instead of wheels. So what became of this concept - and why SnowMobiles?... perhaps cost and size? Edited August 24, 201113 yr by roamingstudio
August 24, 201113 yr So what became of this concept - and why SnowMobiles?... perhaps cost and size? I don't know why it isn't "standard" today. I watched a youtube video with a RC "car" with this screws. Funny thing with it is that it worked equally well on water as on other surfaces.
August 25, 201113 yr Author So what became of this concept - and why SnowMobiles?... perhaps cost and size? They also tend to rip up the surface below them to move around - take a look at the video below:
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.