I am currently looking into building a MPCNC however I am located in New Zealand and part sourcing over here for the EMT Conduit seems to be fairly hard, the cheapest I have been able to find Conduit for was going to be about $57 per 4 meters. I was wondering if it might be a better option to go for steel/galvanized steel pipe or aluminium pipe instead. I am able to get the steel pipe for $6.90 per meter with a 1.6mm wall thickness, or galvanized steel pipe at about $12.12 per meter. I am able to get 3mm wall aluminium for $72.11 per 5 meters plus the cost to get it galvanized. I am still waiting on some suppliers to get back to me on the price of stainless steel, but it does seem to be quite a bit more than the previous options. I am hesitant to get the aluminium due to ware from the bearings, what would be your recommendations on this? All prices are in NZD.
With this in mind I was wondering what the recommended material would be for me to get? Or are there any other kiwi’s who have been able to source this stuff at a decent price?