anton1678 Posted June 20, 2014 Posted June 20, 2014 Ok, I don't expect to win the competition with this as it is, but I've only just started. I added a pullback motor because it makes it much more fun to play with if it drives by itself. The steering is good, and connected to an easy access gear. I didn't gear up the pull back for longer drive time because it's a racer, and it needs speed, but offroad so it needs torque Please give me some suggestions, because I need some extra features to put in this. Quote
W3ird_N3rd Posted June 20, 2014 Posted June 20, 2014 (edited) At least host the pictures somewhere so they show directly in the thread, would be my first suggestion. I imagine the steering won't be so "easy access" once you start building something on top of it. And you could consider to think of some unique feature, because a frame with pullback+steering is rather common. I know it's not finished, but still. Edited June 20, 2014 by W3ird_N3rd Quote
anton1678 Posted June 20, 2014 Author Posted June 20, 2014 At least host the pictures somewhere so they show directly in the thread, would be my first suggestion. I imagine the steering won't be so "easy access" once you start building something on top of it. And you could consider to think of some unique feature, because a frame with pullback+steering is rather common. I know it's not finished, but still. Strange... the pictures are directly in the thread on my computer... I think it's your plugins or something. I have already planned how to make the steering more easy access And I never said pullback+steering was 'unique' Still, good suggestion, I can get something from it Quote
W3ird_N3rd Posted June 20, 2014 Posted June 20, 2014 I see the image when I click it.. I guess you may still have it in your cache (so you see it) and the hoster doesn't allow hotlinking. I know you didn't say it would be unique, it's just that when you read the thread in it's current state, there's not much interesting to be seen yet or even to wonder about what it'll be. The thread in it's current state feels like little more than a question to please provide some original ideas, but that's part of the creative process. Quote
Rockbrick Posted June 20, 2014 Posted June 20, 2014 (edited) Can you all see this? Edited June 20, 2014 by Rockbrick Quote
Rockbrick Posted June 20, 2014 Posted June 20, 2014 If you use pullback motors and steering - you should make the steering super stiff or give it some geometry that make the wheels go straight when powered forwards... Quote
anton1678 Posted June 20, 2014 Author Posted June 20, 2014 If you use pullback motors and steering - you should make the steering super stiff or give it some geometry that make the wheels go straight when powered forwards... what about a gear change that locks the steering in place yes making it stiff is a good idea maybe a shock absorber or rubber band that springs it back Quote
Rockbrick Posted June 20, 2014 Posted June 20, 2014 or a return to centre mechanism...... easily done with lego rubber bands and ball joints Quote
Technyk32231 Posted June 20, 2014 Posted June 20, 2014 or a return to centre mechanism...... easily done with lego rubber bands and ball joints Or some positive caster angle... Quote
Rockbrick Posted June 20, 2014 Posted June 20, 2014 Or some positive caster angle... I find on 9392 (orange quad bike model) the faster you push it along the floor the straighter it goes - all due to the caster angle Quote
anton1678 Posted June 21, 2014 Author Posted June 21, 2014 (edited) I have found that simply using friction pins instead of frictionless pins ends the problem. I have added 2 pistons and put the pull back in a better position. I widened the body, now it is far more optimised for the aesthetics posting pictures soon Edited June 21, 2014 by anton1678 Quote
Erik Leppen Posted June 21, 2014 Posted June 21, 2014 It's pretty large. I'm curious how you will stay within 200 parts with this. Quote
anton1678 Posted June 22, 2014 Author Posted June 22, 2014 It's pretty large. I'm curious how you will stay within 200 parts with this. I'm keeping it really simple in relation to some of my other models. yes, it's bigger than others, but without aesthetics it's about 150 pieces. and here come the pictures... Quote
Eraman Posted June 22, 2014 Posted June 22, 2014 I saw the pictures, first it's enough one row of gear to work the engine. Maybe the chassis will be smaller and more compact. I think search on the internet some off-road body kit or read some official building instruction, steal some ideas from them and use it ! And need a lot of practice to know the technic elements, how join them to each other, 1 year ago it was difficult for me too, but nowdays it is better and better. Quote
anton1678 Posted June 22, 2014 Author Posted June 22, 2014 (edited) I saw the pictures, first it's enough one row of gear to work the engine. Maybe the chassis will be smaller and more compact. I think search on the internet some off-road body kit or read some official building instruction, steal some ideas from them and use it ! And need a lot of practice to know the technic elements, how join them to each other, 1 year ago it was difficult for me too, but nowdays it is better and better. The gears are for the piston, and don't do anything for the driving. I will try to make it smaller though, it isn't so mini yet, but the piece count is still small. I have also had trouble joining the elements in different ways, it's hard to think up of your model and how to build it. I don't cheat, I won't steal anything from another website. But I did read official instructions for inspiration, that blue buggy thing helped a lot Edited June 22, 2014 by anton1678 Quote
Eraman Posted June 22, 2014 Posted June 22, 2014 The gears are for the piston, and don't do anything for the driving. I will try to make it smaller though, it isn't so mini yet, but the piece count is still small. I have also had trouble joining the elements in different ways, it's hard to think up of your model and how to build it. I don't cheat, I won't steal anything from another website. But I did read official instructions for inspiration, that blue buggy thing helped a lot I posted the LDD file in my topic, watch it, maybe you get some inspiration Quote
anton1678 Posted June 23, 2014 Author Posted June 23, 2014 Does anyone have any ideas on how I should do the aesthetics? Quote
Bzroom Posted June 23, 2014 Posted June 23, 2014 Trying to recreate the same body style as your mindstorms offroader would probably be a good start. You might sketch some ideas on paper and think through what you would need to build them. Thinking ahead will allow you to build what you want in less than 200 pieces Quote
anton1678 Posted June 23, 2014 Author Posted June 23, 2014 Trying to recreate the same body style as your mindstorms offroader would probably be a good start. You might sketch some ideas on paper and think through what you would need to build them. Thinking ahead will allow you to build what you want in less than 200 pieces Good idea, I was trying to do that, but now that I sketched it out and gathered pieces, it's much easier Quote
anton1678 Posted June 24, 2014 Author Posted June 24, 2014 I have finally made a prototype design! Pictures coming soon... Quote
anton1678 Posted June 24, 2014 Author Posted June 24, 2014 (edited) Here are the photos: LDD in progress, for anyone who needs it. Piece count is 179, but it's still probably the biggest mini model in the challenge. This is only a prototype, suggestions still needed just in case Edited June 24, 2014 by anton1678 Quote
Eraman Posted June 24, 2014 Posted June 24, 2014 It's not bad for the first time;) Try to improve the body, mainly the front section. Quote
Appie Posted June 24, 2014 Posted June 24, 2014 Looks pretty good, but those soft axles on the outside are prone to fall off because of how they are mounted. Also looks like you are stressing the connector and pin that connects that soft axle construction in the front to the body very much (it's bending?) Quote
anton1678 Posted June 24, 2014 Author Posted June 24, 2014 Looks pretty good, but those soft axles on the outside are prone to fall off because of how they are mounted. Also looks like you are stressing the connector and pin that connects that soft axle construction in the front to the body very much (it's bending?) Yes, I am trying to improve that, it falls off every time I try to use the pull-back That front part where they are mounted is hard to make better because it is actually the control column that houses the steering wheel I will have it done by tomorrow, even if I have to rebuild the whole thing. Quote
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