My concern is that the head is in constant motion. As you run the screws up and down, the arms are the link that keeps the nuts from spinning wildly. If you are putting enough torque into the screws to use the motors, most of it is going into the arms. If they bend from torque you get an S curve rather than a straight line. If I'm running 1/2" thread, and going fast, there will be torque involved...
All that said, I'd bet that the aluminum would do the trick at least as well as a piece of printed PLA.
The cheap aluminum aisle at the store stops before you get to 2024. 6061 and 6063 are the two main choices. The 6063 would be better looking. It's also got more size choices. My guess is that what ever I mate with the 6061 will be custom printed to fit the material I get. It's not all that consistent on inner dimensions.
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I've been digging into the details on the DQ542MA drivers. They appear to be 128 micro step drivers. That would let you hang in there with the "lets talk resolution" gang. It's a meaningless discussion, but you would still be able to participate.
Unless my math is wrong (again) you should be able to get to >200 mm/sec or so with those motors and drivers at 48V and the normal 1/2 current to keep things cool. You might be able to drop back to 36V on the drivers. I'm still digging to see if they really are 48V units or not.
All that said, I'd bet that the aluminum would do the trick at least as well as a piece of printed PLA.
The cheap aluminum aisle at the store stops before you get to 2024. 6061 and 6063 are the two main choices. The 6063 would be better looking. It's also got more size choices. My guess is that what ever I mate with the 6061 will be custom printed to fit the material I get. It's not all that consistent on inner dimensions.
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I've been digging into the details on the DQ542MA drivers. They appear to be 128 micro step drivers. That would let you hang in there with the "lets talk resolution" gang. It's a meaningless discussion, but you would still be able to participate.
Unless my math is wrong (again) you should be able to get to >200 mm/sec or so with those motors and drivers at 48V and the normal 1/2 current to keep things cool. You might be able to drop back to 36V on the drivers. I'm still digging to see if they really are 48V units or not.