efferman Posted January 9, 2020 Author Posted January 9, 2020 Sounds plausible. The Liebherr L1 makes 0.5/0.8 rpm, so i should end between this and 2rpm in max. Quote
suffocation Posted January 9, 2020 Posted January 9, 2020 Why not include a selector to choose between "realistic mode" and "play mode"? The former maybe 2 rpm max and the latter e.g. three times as much. Quote
efferman Posted January 9, 2020 Author Posted January 9, 2020 3 minutes ago, suffocation said: Why not include a selector to choose between "realistic mode" and "play mode"? A gearbox needs a lot of space and i guess a highspeed mode would raise the risk of tipping over. Quote
suffocation Posted January 9, 2020 Posted January 9, 2020 Ah, good point. Anyway, this crane you're working on is awe-inspiring. Can't wait to see more! Quote
efferman Posted January 14, 2020 Author Posted January 14, 2020 Finally all functions are together in one Video. Most of them are working in a proper Way, only 1.5- 1.7 rpm in rotation seem finally a little bit fast.. Quote
TinkerBrick Posted January 14, 2020 Posted January 14, 2020 Works great imho. The folding mechanism is ingenious. Can it lift a few grams, e.g. a small battery box? Quote
efferman Posted January 14, 2020 Author Posted January 14, 2020 The winch itself can handle 3 Batteryboxes including their batteries. The sled has problems with this weight to move. Another point to improve. Quote
efferman Posted January 20, 2020 Author Posted January 20, 2020 The Sled is now working properly with 3 Batteryboxes. Next Problem is the outriggerbase. Under Load it is leaning to the Side. Quote
efferman Posted January 23, 2020 Author Posted January 23, 2020 The white Towers representing the ballast weight which is mounted permanent on the Model. They are filled with roundabout 630 g 6mm Steelballs. Together with the Batterybox this is more than 800g Counterweight. Enough for light duty and on top is space for more. schnelleinsatzkran 2 by Michael Wirth, auf Flickr Quote
Capparezza Posted January 23, 2020 Posted January 23, 2020 Uff. Your technic creations never cease to amaze me That's true "German engineering", hehe. Quote
virgule972 Posted January 26, 2020 Posted January 26, 2020 Everyday I can see the real model at my work ? 41 minutes ago, efferman said: A small break for lunch. « Bon appétit » Quote
efferman Posted January 27, 2020 Author Posted January 27, 2020 (edited) A part of the Gooseneck is done Edited January 27, 2020 by efferman Quote
efferman Posted January 28, 2020 Author Posted January 28, 2020 Front Part is done, now the rear axles Quote
brickless_kiwi Posted January 29, 2020 Posted January 29, 2020 On 1/27/2020 at 12:41 AM, virgule972 said: Everyday I can see the real model at my work ? « Bon appétit » Not something I have seen before is the crane self propelled or towed and who makes them kind regards matt Quote
efferman Posted January 29, 2020 Author Posted January 29, 2020 (edited) The Rolling chassis is now complete. The Trailer axles are suspended. [ edit: Trailer for counterweights when Crane is upright. Edited January 29, 2020 by efferman Quote
Beck Posted January 30, 2020 Posted January 30, 2020 (edited) Great work @efferman! Having previously tried to build a self erecting tower crane, I can understand how difficult this project must have been. 16 hours ago, brickless_kiwi said: Not something I have seen before is the crane self propelled or towed and who makes them kind regards matt Pretty sure that's a liebherr mk140/110/100. The company appears to be mediaco from France. Edited January 30, 2020 by Beck Quote
Saberwing40k Posted January 30, 2020 Posted January 30, 2020 17 hours ago, brickless_kiwi said: Not something I have seen before is the crane self propelled or towed and who makes them kind regards matt This particular folding tower crane is self propelled, but there are towed versions. A number of companies do make them, including Liebherr and Spierings. Google Self Erecting Tower Crane, and that should give you more info. Quote
virgule972 Posted January 30, 2020 Posted January 30, 2020 (edited) A mediaco crane A very strange self-supporting crane, because the mast stands vertically. I will try to take photos when it is in operation. Edited January 30, 2020 by virgule972 Quote
efferman Posted February 1, 2020 Author Posted February 1, 2020 The Basic Counterweight is done and should be enough to rise the Crane. Maximum hook height is actually at 95cm and the Boom is 126cm long Quote
efferman Posted February 2, 2020 Author Posted February 2, 2020 (edited) Test 10 of my self Raising Crane. Unfortunately the Base counterweight is not enough for rotating with the transport chassis on the hook. And i have discovered a small problem with rope suspension of the boom. Edited February 2, 2020 by efferman Quote
efferman Posted February 12, 2020 Author Posted February 12, 2020 Test 11 and the stability problems seem to be solved. A new upper collumn and a quarterpiece turntable with 1x1 round tiles between the two parts working finally Quote
jotta93 Posted February 12, 2020 Posted February 12, 2020 It's awesome Michael! How far away from the tower have you tested it? Does it threaten to tip over? Quote
Chipstertrain Posted February 12, 2020 Posted February 12, 2020 Hi Michael Will you be attending/showing any of your models at "Modelshow Europe" in Ede, Netherlands on March 21st this year as I would love to finally see your work with my own eyes. Thanks Chip Quote
.thumb.jpg.2335d10c31c9ffa7029728589340e12f.jpg)
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.