

ben20
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About ben20

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technic
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Cutting branches automatic to length with (steel) saw blade
ben20 replied to ben20's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Thanks for the advise. The connectors have good insulation and fit tight so there are no sparks. I'm using a 80W rc motor for the blade and normal Lego ones for the movements Yes that's the plan, some sort of wood factory :D Load the branches with my loader or crane. A wood chipper for waste (twigs) and some sort of vacuum to collect the sawdust -
Hello Since a long time i combine Lego's with rc, and this is my latest wip. It's a automatic cutting machine that works in combination with the control center. Lego can't cut wood, so a steel saw blade is used I'm impressed how precise the control center works, as you can see in the video all branches have the same length after cutting. The fun part with the control center is that you can program the procedure and after that just press the button and watch the machine do it's job The concept works,so now it's trying out some good color combinations and finetune the machine. The saw blade motor can be activate with an automatic switch or a auto valve. But since i filmed inside, for safety reasons the rc option is used.
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Best power supply for PF motors?
ben20 replied to HectorMB's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Rechargeable AA and AAA have both the same voltage/power. The thing is that original Lego Battery boxes and electronics restrict te current so you never have full power. It's just a safety feature. If you want full power you need BuWizz or rc electronics -
[MOC] Actros 4163 Titan
ben20 replied to HUWI's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I love when lego is mixed with rc, to have the model you want (body) but with much better performance. How come the u joints can handle the torque? I i use one xl direct to a u joint/driveshaft it instant snaps -
[MOC] Motor grader CAT 120M2
ben20 replied to Jundis's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
The use of an airtank does NOT increase air pressure. You have more volume and so you can activate more cylinders at once with higher speed. But this at the cost of control, more jerky movements. Your compressor or hand pump needs to be bigger or on higher rpm- 42 replies
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Powering a motor with remote AND switch?
ben20 replied to johncarpenter's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Give it a try! All the electronic components are tested and retested in all worst case scenario's. Also protectors against shortcut, overheating, etc are used It's made most for kids, so you can imagine Lego won't risk a claim of a burned house or other electric danger that comes with wrong placed electronics -
[UPDATED] Lego Technic linear actuator performance measurement (including new XL actuators)
ben20 replied to 896gerard's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hmm strange, Searne his test show the opposite. Xl is weaker (clutch slips sooner) -
Turning a real Liebherr R 9800 into a LEGO RC model
ben20 replied to Sariel's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Just saw the small version on Belgian tv, so i guess it is seen on a lot of country's. Great video and a real tribute for yourself. I follow your builds since almost the beginning, and saw it all grow. You deserve this in all kind of ways. What i do find a shame is why Liebherr don't promote this, nothing on their you tube channel. compared to Volvo and others who make all sort of cool video's with Lego (how it's build, specials, etc) -
Classic RC receiver + Technic motor
ben20 replied to Wojtulson's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
When you use a rc receiver you always need a esc to control your motors. This because you have 3 pins/wires (- + signal) and the motors consume more voltage the receiver can handle (it is possible without, but only for small applications like lights and servo's) In my loader i use a mix of Lego motors and rc ones, together with lights sound, etc. The options are endless what you connect to it -
[MOC] Bulldozer
ben20 replied to damjan97PL's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
There is to much slack in the tracks, at 1.22 in the movie you can see. Remove one link, or give more tension would help -
Metal Gears
ben20 replied to The Ghost Racer's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Yes indeed. No a bushing does not add extra strength to the gears, only to prevent axle sliding. But it works really good, no broken gears with this mod- 32 replies
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Metal Gears
ben20 replied to The Ghost Racer's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Ow is it? Didn't check if the link was working. I should make new pictures then. But this one is the same- 32 replies
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Metal Gears
ben20 replied to The Ghost Racer's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
https://store.bricklink.com/Eezo#/shop?o={"itemType":"P","catID":"136","showHomeItems":0} http://www.moc-pages.com/moc.php/433674 If in a diff, try my mod, so you have double the strength on the 12t bevel. Always try to gear as much down AFTER the diff,. The new hubs would be perfect for you, so you have less stress on the total drivetrain- 32 replies
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42099 CV joints damage after use
ben20 replied to Zerobricks's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Here you have your REAL Lego metal as in a set bricklink.com/v2/catalog/catalogitem.page?P=70644&name=Technic%20Hook%20Large%20Metal&category=%5BTechnic%5D#T=C They could have made it in plastic, but the builders at that time want that a crane can lift things., They want to make sure that the hook, where a crane stands for, was more than strong enough. The topic is not about the need for metal, yes the expert builder would like that, but it's about a piece driven by hand and show wear is no Lego quality as it should be -
42099 CV joints damage after use
ben20 replied to Zerobricks's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Only when on stress and on the wrong place. I use metal axles on my loader, This model is build to last. More than 100 hours of digging outside and a lot of stall in the drivetrain. I design and tested my model for this, to eliminate the weakest point. It's just the knowhow or if you want it to do as a Lego designer. That's the whole point, for this kind of model and price you can't say as an engineer,'no that's normal, wear on a 0.5km/crawler' If you put a brushless motor and drive at 50/km/h with 30000rpm spinning parts, yes that's overkill and NORMAL you wear out plastic after a while, but not on this one!