 | | Re: Motorized Excavator - expensive!!!
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(...) The answer to the higher price is Power Functions content. 8258 Crane Truck ---...--- 1x - XL motor ($10) 1x - Battery Box ($7) 2x - Linear Actuator ($30) 1x - Pole Reverser ($5) ---TOTAL---...---($52)---- 8043 Excavator ---...--- 4x - M motor (...) (14 years ago, 11-Aug-10, to lugnet.technic)
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| | Re: Motorized pneumatics
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The chain is not necessary. It was just a quick way of hooking the motor to the differential. There is sometimes a delay in the system because the pump is such a small load even when the valve is closed. One way around this is to give the output (...) (14 years ago, 11-Aug-10, to lugnet.technic)
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| | Re: Motorized pneumatics
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Hello Nathan, Is there a technical reason you use a chain link between the motor and the differential grear? Would it be unsave to engage the gears directly in this case? With friendly greetings, M. Moolhuysen. (14 years ago, 11-Aug-10, to lugnet.technic)
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| | Re: Motorized pneumatics
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(...) Hi Nathan, I really like your solution. I've seen a number of automated vales, but almost all had the drawback that they could generate considerable stall load on the motor. This solution appears to be much more efficient. Jetro (14 years ago, 11-Aug-10, to lugnet.technic)
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| | Re: Motorized Excavator - expensive!!!
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(...) For a very long time (too long according to many) LEGO has used a conversion rate of 1Euro=1USD when the actual currency conversion is quite different. At this moment, 160Euro=209USD. The case of the Crane Truck was especially 'painful' as (...) (14 years ago, 11-Aug-10, to lugnet.technic)
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