It's 10pm on the Friday of a long weekend but I've stuck around to create a "quick" video showing the deflection + backlash of the LongMill 30x30. For regular use (just under 3kgs load) this ends up at around ±0.13mm (±0.005") in the x-direction and ±0.2mm (±0.008") in the y-direction.
In the x-axis, the movement comes from a small amount of looseness in the linear guides, the delrin v-wheels, and a small amount of backlash. In the y-axis, the majority of this movement arises from twisting in the long x-axis rail as well as a tiny contribution from the delrin wheels and backlash.
It's hard to compare these results to other similar CNC routers since documentation like this is hard to find from other companies: if you do know of any then please contribute in the comments. Otherwise, I'd speculate that this testing is easily comparable to any other in-class machinery out there.
For more info on the LongMill, visit: sienci.com/
Негізгі бет LongMill Deflection + Backlash
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