I have the option to buy a used older(about 20 years old, my guess) 1 1/2 HP 110/220v cyclone dust collector for $60. It has a 12in straight impeller and built in dust filter inside the the cyclone area. If I buy it, Oneida sells a conversion kit that allows me to remove the internal dust filter and install an external cartridge. I have attached photos of the same model. ITs to the actual unit because I did not take photos but looks identical and also a before and after external filter setup.
I have a 20x20 2 car garage with a basic tools, such contractor table saw, 12in sliding miter saw, 14 in bandsaw, 6 in jointer, lunch box planer. It is for my personal use. I called Oneida and they said it is perfect for a one man diy shop and they recommend using all 6 in piping. I still rather ask the sawmill creak community for their unbiased opinion.
One think I notice is the only way to turn it on or off is to plug it directly into the wall. There is no on/off switch. So how rewire this so it is more practical.
the photo without the external dust filter is the current setup. I would have to buy the parts for about 200-300 more from oneida to convert it to an external filter setup.
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