Printer Diaries: How stiff is 2020? | Delta 3D Printer | Shorts

I figured out that trussing a pair of 2020 beams, even with printed joiners, can be substantially more stiff than a single 2020 or even a pair that isn't connected. But does my delta's frame need it? Let's break out the dial indicator and find out before all the truss pieces are attached.

[@jamespray]

If you're worried I'm dead, no, I just messed up my back this summer and got way behind schedule, including on making videos. I'm getting better, though, and project videos are coming SOON (TM)

[@lasskinn474]

yea 2020 flexes. how much that matters at the hotend though, dunno. what i do now that a moving bed printer that you stiffen up by just lazily throwing more 2020's at it to box it up does sing a lot less and feels a lot less sketch when running higher accelerations and speeds

[@jamespray]

for a delta, any carriage deflection will (generally) be multiplied at the hot end by the arm geometry, so this is pretty important in this case. Most other motion systems are more forgiving, though!