Nigel. you would have to check with your local customs office, where ever that might be. The customs importing rules are different for each country. I live in Canada, and the importing of items between Canada and the US is fairly easy for most items now, due to the free trade agreements, but it may be somewhat different for Aus.
I would recommend paying the difference in price between the motor you think you need, and the 500 oz inch motor that homeshopcnc has available. There is no substitute for power and it is recommended that you have a motor large enough to provide approximately twice the power you think you will need. Besides, the price difference between these motors is likely only about $20 each. Rick has prices listed on his site, so you can do some comparision on line. The 500 oz motors are only about 3/4" longer that the smaller sizes, they are also newer technology, and somewhat more efficient.
Depending upon the amperage available from your controller, you may or may not have all the 500 oz power available, but you will still be ahead of the game with the larger motor.
I also recommend using dual shaft motors as this gives you the ability later on to add rotary encoders to each motor, to give you accurate position information.
Pete - good luck  |