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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Economics of transmission
I am not sure if I am going crazy or the world around me is:
I am going around trying to price out a project: To reduce motor speed using a pulley system by 16:1 would cost me in pulleys alone $50 using a local supplier (2 6" and 2 1.5" pulley). I have just come back from an auction where one could buy several drill pressess for around $40. For this I have two step pulleys, a motor, a shaft, some bearings etc. Since when has it become cheaper to buy an assembled piece of second-hand equipment and cannibalize it for parts rather than buy parts alone? Come to think of it, it would not even have to be second-hand equipment: Plenty of cheap small drill presses for $100, i.e. a cost of 2 step-pulleys alone. BTW a single sleeve 1/2" bearing - $5.00. Is this an atypical observation? Is this a common phenomenon in the USA also? -- Michael Koblic, Campbell River, BC |
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