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Everything posted by ludov
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[WIP] All terrain crane
ludov replied to Erik Leppen's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Interesting build, as usual from you. I’ll be following this. I’m curious to see how see how 4x4 drive works with the 3 steering modes. I’d think you need a center diff for the normal mode (2 wheel steering), but I might be wrong. Did you abandon the other crane? -
45678 LEGO Education SPIKE Prime
ludov replied to M_longer's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
This is LEGO official documentation? I thought all the efforts were community powered reverse engineering, but if there documentation support from LEGO I see a bright future! i was really late to the PF1 party and feeling sorry for myself, but maybe I should be glad I didn’t invest that much money into PF1. Is there already a rechargeable battery available? -
GBC General Discussion
ludov replied to Jim's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
It looks familiair, but maybe I’ve seen a previous version, since it was definitely before 2019. I really like the pneumatic machinery and this one is very awesome. Very elegant. I tried something like this for one of the TC (box factory), but my attempt wasn’t even close to elegant. maybe I should retry.- 1,124 replies
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[Video review] 10265 Ford Mustang
ludov replied to Sariel's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Wow. I didn't even know this was coming up. Indeed a must buy - not sure how to get away with that at home though Not sure what I think about the "upgrades", but hey - extra parts, whose complaining. I'm curious though about the steering system - why such a big 40z gear? I tried going back and forth a few times in the video, but I can't really figure out how it's set up. Does the 40z have a pin or something that pushes the steering rod left and right? -
James Watt's Steam Engine
ludov replied to Kaero's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Oh, this is cool. I tried to go and support it, but the project already expired. Thanks for making instructions - added to the to-build list- 9 replies
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I missed a bunch of updates... It seems that I even missed the final boom design, from July 13th Cool to see it finished though, congratulations! Are there more photo's available of the final version? The render shows some features (like the support legs for the legs) that I haven't seen before. Maybe a movie...? Whoops, I see that your last post is only from last week - I should be less impatient Looking forward to the write-up and photo's!
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Thanks for the pictures of the Titan, it deserves its own topic (if there isn't one already...) Makes me want to restart my own shelved Titan project... A bit smaller though - 1:30
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Wow I too overlooked the first LEGO pictures thinking they were of the reference material. Well done! If I'm allowed to comment, I'd say that the engine is a bit bland compared to the exterior - seems a bit out of place... Do you have more pictures of the Titan?
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Thanks for the nice comments! Stud.io seems to work very similar to LDD, fortunately. Most key shortcuts are the same. The snapping is not as accurate as in LDD, and also the collision detection isn't, but on the plus side: gears just fit, no need to rotate them just little bit just to make it fit I'm only missing a quick way to export an image... like the screenshots in LDD. The only way I can find to export an image is rendering, which takes quite some time.
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That's a cool mechanism! Using those wedge belt wheels as drums with 6 positions totally makes sense when you think of it I'm now wondering though how you did the gear switching on the Dominator? Just individually switching each set of gears? P.S.: thanks for linking to the mashup, totally missed that...!
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[MOC] Technic Abomination
ludov replied to sheo's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Wonderful, absolutely amazing! I love all the funny details, like the hammer and screwdriver and the power reserve indicator. The crane mode is totally crazy awesome -
Thanks! Thanks! There's no counter balance weight, so at lower angles there is some tilt forward and rotating it can get it stuck at the edges of the fenders of the carrier. But this only happens with the boom fully extended at near-horizontal, or with a significant load on the hook. I guess I could have designed to have only smooth edges at the bottom, but I didn't think of that. I'm happy with it though - it's very playable!
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I finally managed to make some better photo's (more on Bricksafe): Here's a small video demonstrating the synchronisation of the boom extension/retraction with the cable spool. I used a motor for smoother motion, also because the gear reduction is a bit too much (lots of rotations needed to unwind the spool). The gear reduction is ok for boom extension and is perfectly matched to the unspooling rate, but for just hoisting up and down it should be a bit faster - for a bigger model I would include a second gear box to switch speeds probably (linked to the first). I downloaded stud.io to see what that's all about - let's see if I can make some nice renders and maybe instructions... Comments welcome!
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Awesome, truly awesome! I think you used the chain drive before somewhere, right? The "circular" automata? It seems to work very reliable and even quite strong, considering how small those links are and how heavy the whole turn table seems to be. Or did you reinforce it somehow? I too am wondering how the top part rotates so reliably with respect to the pegs. Or is there some guiding mechanism that make sure the grabber fits nicely onto the pegs?
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Yes it is. I decided I had been struggling long enough with this MOC To make it 4 wide I would have had to redesign the whole boom and its attachment points, including the transfer of the boom extension through the main hinge point that I have been working on for a very long time - I wanted to finish I will use the more narrow boom maybe for a future project!
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Guess what, it's finished! Here are two quick photo's I took; I'll try to make some better ones in the coming days during the daytime. In the back of the upper structure is a small gearbox. When you engage the red switch and then rotate the knob for the hoist, the boom is extended (or retracted) with the same pace as the spool, so the hook stays at the same relative position; no need to first drop the hook, then extend the boom, extend the hook again, etc. I'll try to make a small movie of it. I'd love to hear your opinions!
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MLCad - highway rigs
ludov replied to neonic's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Very nice. I always wanted to have that set as a kid, but never got it - I started spending on Technic and the allowance can only be spent once I really like your update. I think the sun visor is a bit big, maybe remove the upper row of plates if possible? Are you planning to build it? Those 6.5 (?) L bars you use for the handrails are rare, if I recall correctly. At least in LBG. And the wheels are getting more rare also. I bought a bunch of them some time ago to build a rig like this that I designed, but never got to building... -
Expert Builder Mobile Crane
ludov replied to louisk's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Very cool. I like those old sets, they were from just before I started with LEGO and typically the stuff I would find a friends' places if they had slightly older siblings (or AFOL parents ). Quite functional considering the limit part palette. I'm wondering now why the 24z crown gear disappeared - its so functional! -
My mechanical clocks
ludov replied to Davidz90's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Very nice. The video explains it well, although in the black&white version at the end it's a bit hard to see what's what. Thanks also for providing the building instructions - I keep saying I have to build one myself, but now my only excuse left is that I don't have the screwdriver