Sariel

Captainowie, thanks for ideas, I need to wrap my mind around these :) Update: the converter now shows scaled results for a specified scale (right column). The scaled results are updated whenever you change any value in the left column, or the scale factor. On the funny side, it's not possible to change value of the scaled results :P Also, using backspace in the inputs is now possible. Please note that due to rounding, the scaled results may not be fully accurate for scales smaller than 1:999.

With all due respect, I gave you basics and referred you to my book for details. In fact, I told you about the 8297's suspension solution in the very first answer. Excuse me if I don't give you a complete recipe for the whole model - which is what your many, repetitive and onerous comments come down to. I consider what you wrote a slander, and I'm reporting it to the EB staff as such.

I beg to differ.

So there's this Italian fanpage: https://www.facebook.com/pages/Nati-con-i-LEGO/644880835524796 Its admin adds photos of MOCs in mass amounts. Which is nice, cool way to popularize some creations, but it would be even nicer if there was some kind of a link, or even mention of who built it. I don't think it's proper for a FB fanpage to build its popularity on a content that is borrowed and uncredited. I found my model there by pure accident, and decided to share it with you, no doubt you will find some of yours, too.

This tank looks really small, I'd say 500-600 grams top. That's very light for torsion bars. Note that with 10 road wheels, each torsion bar only handles 10% of total weight.

Torsion bars need the tank to be reasonably heavy to work.

Actually, I get a lot of good advice from showing WIP pictures. Seriously, isn't this thread a bit paranoid? The book I wrote got pirated left and right, and I don't do drama about it. If you're afraid the internet people will steal your ideas, then perhaps you shouldn't rely on internet people for advice.

Don't share a thing. Live secretly, preferably in the woods. Stay low, stay hidden, stay vigilant, build your own fort ;)

Or you could put the worm gear above the turntable, not below it, and then the gear reduction would make the unwanted gun motion negligible.

So, I made this to try my hand at the classic MT scale, and to build a truck with an actual windshield. Oh, who am I kidding, my hamster overlord wanted a ride: Photos and some reading: http://sariel.pl/2014/05/volvo-fh12/

Good idea, I have updated the converter to operate on LDUs, and added results in LDUs and in stacked plates. I have also rewritten formulas for units, they seem accurate now. If you are interested, my formulas for calculating LDUs into different units are below, perhaps you can come up with better ones. So, if 1 LDU = 1/20 of a stud, then: 1 stud = 20 * LDU 1 cm = 25 * LDU 1 m = 2500 * LDU 1 inch = 25 * 2.54 * LDU 1 feet = 25 * 30.48 * LDU 1 brick = 24 * LDU 1 plate = 8 * LDU 1 small track link = 20 * 13/15 * LDU 1 large track link = 20 * 13/8 * LDU

Aaaaaand there go my dreams ;) I did some inch/foot corrections and enabled entering dots into values. Any script that has you looking up ASCII tables is a fun script ;)

Well, I need to do something about the rounding. The converter actually calculates everything twice, first the value you enter is converted to studs, then all other units are calculated from studs. Perhaps not the best solution.

I found myself needing utility like that recently, so I made one: http://studs.sariel.pl/ Please note that the results are shown with 0.001 accuracy and the last digit is rounded. I'm open to new units suggestions. No, hamsters don't qualify, their shape and size are too inconstant.

Not sure what you mean. It's not like wheels change their size over time.

3:1, as shown in the video and at my website, too. Interesting. I wonder how well these would work together.

Just a test with a third method of water propulsion that came to my mind. Not sure what else is left: oars? Sails? Turtles? Photos & reading: http://sariel.pl/201...er-paddle-boat/

There are two motors, one for lifting the bucket, one for opening it. They are connected through a differential so that the lifting motor controls both lines the bucket is suspended on, and the opening motor only one. There's a full explanation at my website.

Actually, it's a real function found in real cranes:

This is not a completely normal video... Some more insan... erm, photos and reading: http://sariel.pl/201.../crawler-crane/

And what is the point? You seem to think there is something to gain this way. There isn't. Connecting the two outputs won't give you more torque or more speed than you would get from a single output. Not as long as they are both driven by the same single motor. Yes, you can trade torque for speed by gearing down or up, but it works just the same with two outputs and with single output. You'll just end up with a few more gears that do nothing.

Um, that would work if these were two separate motors' outputs. But it's the same single motor, you know. You put load on one output, it will affect the other too. You can even use the 8878 battery for the RC motors (one motor per battery), but you won't get the same performance as with the RC unit. The V2 IR receiver improves the performance, though.

I don't think so.

I guess it's useful enough to belong here:

The GoPro 3 with the watertight housing on is like 120 grams.