Jennifer Clark Posted August 8, 2017 Posted August 8, 2017 These photos are absolutely brilliant Bonox, thanks so much for posting. I especially like the last one with the model between the front wheel and the step. The one with the model on the crane body is fab too :-) The AC50 was the version of that crane that came before the AC50-1. I'm afraid I don't have the exact dates when they were introduced, but one of the clues is the cabin shape. The AC50 is a bit flatter / squarer than the more rounded AC50-1. I'll see if I can find some documents from the time with more detail. Cheers! Jennifer Quote
bonox Posted August 8, 2017 Posted August 8, 2017 Thankyou Jennifer. It would be fabulous to have a bit more info before undertaking a teardown and a reason for the significant configuration change would be nice to know. Once again, thanks again for a fabulous model. Your scale modelling skills and non-lego workarounds are still ingenious years on from the original design. I'm still keeping an eye out to find a couple of those old hi-technic systems to play with. Quote
Jennifer Clark Posted August 8, 2017 Posted August 8, 2017 I've tried to find some old datasheets of the various Demag crane types, but unfortunately can't find any. From memory, it seemed more like an incremental change over the entire range of cranes. Slightly improved boom length and/or maximum lifting weights due to improvements in the materials used for boom, and a general upgrade in crane technology. I think there was a lot more computer control being introduced around this time (late 90's), along with more advanced structural design of components such as boom profile. Probably based on finite element analysis. Jennifer Quote
bonox Posted August 8, 2017 Posted August 8, 2017 Oh well, thanks for the effort. Back to Terex then :) Quote
Actuonix Posted October 6, 2017 Posted October 6, 2017 On 3/8/2017 at 4:00 PM, Blakbird said: Thanks for letting us know; I'm not sure I would have found this otherwise. Do you still offer an adapter cable for Power Functions? Also, do you still offer a conversion to lower gearing? Sorry for the delayed response. We no longer offer the adapter cable for Power Functions. We are not able to source the parts anymore. There are some instructions online on how to build one. You can find them here. . Quote
Blakbird Posted October 6, 2017 Author Posted October 6, 2017 3 hours ago, Actuonix said: Sorry for the delayed response. We no longer offer the adapter cable for Power Functions. We are not able to source the parts anymore. There are some instructions online on how to build one. You can find them here. Since the AC-50 model does not connect to Mindstorms and therefore does not need to work with a NXT or EV3, you only need to connect to power. I think you could probably skip all the fancy resistors and just make a straight through adapter for this application. Quote
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