MRRF 2019 Interviews

Comparison of CoreXY machines at MRRF 2019

Video by 3D Distributed
https://www.youtube.com/watch?v=ifQt9VfWZ1Y

(Observed features by machine)
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- Machine 1 (0:00)
	- Base is thick (~1/4" or higher) milled aluminum plate
	- 4040 extrusion used for Z-axis members
	- Aluminum plates mounted on top of the Z-axis beams as X- and Y-axis structural members
	- Single Z-axis drive with large linear rail (looks like MGN15?)
	- LED strips mounted inside Z-axis beams
	- E3D toolchanger w/ 4 tools
	- Aluminum plate and linear rail on X-axis (looks like MGN12 or smaller)
	- PEI on build plate
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- Machine 2 (0:29)
	- Metal-enclosed on three sides
	- Triple-Z axis
	- Linear rails on all axes
	- Bondtech BMG direct-drive
	- Titan Aero
	- BLTouch
	- Single 5015-blower layer cooling
	- Single-piece aluminum plate around Z_max perimeter as X- and Y-axis structural members
	- Solid aluminum plate at the bottom
	- 0.9deg steppers
	- Meanwell PSU
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- Machine 3 (0:57)
	- PanelDue 7" touch display
	- 2020 extrusion for all structural members
	- Triple-Z with linear rails
	- Zero-backlash leadscrew nuts
	- Direct-drive Bondtech BMG and E3D 34mm pancake stepper
	- Single 5015-blower layer cooling
	- MicroSwiss slotted cooling block / silicone heater block sock
	- X-axis gantry is ONLY linear rail! FUCK!
	- Optical endstops
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- Machine 4 (1:17)
	- E3D toolchanger
		- 4x hotends with Titan extruders in Bowden configuration
	- 4040 extrusion for Z-axis structural members
		- Z-rail attached to 4020 Z-beam at rear X-midpoint (also connected to single-piece aluminum top)
	- Single-piece thick (>1/4") aluminum plate for X- and Y-axis structural members on top of the Z-beams
	- Single-Z with extra-wide linear rail
	- Dual linear rail on x-axis?? (looks like over/under?)
	- 400x300 heated bed
	- Direct-drive hotend, unknown extruder
	- Duet (maybe DuetWifi) controller
	- Duex-5C expansion board
	- Raspberry Pi
	- Non-Meanwell PSU
	- Milled aluminum plate under Z-beams
	- Y-axis linear rails undermounted to upper aluminum plate
	- LED strips on all four vertical corners
	- 400x400x600 maybe?
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- Machine 5 (2:12)
	- VORON-style (actuated XY gantry, fixed bed @ Z_min)
	- 2020 extrusions for all structural members
	- Three-point Z-leadscrews with single-drive + belts
	- All axes mounted on ExoSlides
	- Direct-drive extruder w/ 40mm NEMA17
	- Zero-backlash leadscrew nuts
	- Drag chains on all axes
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- Machine 6 (2:34)
	- CoreXY conversion for Ender-4
	- 2020 extrusion on all members
	- Stock Creality Hotend Box
	- Single-Z
	- Polycarbonate wheels
	- Bondtech BMG clone in Bowden configuration
	- Capricorn tubing
	- Logitech C270 webcam
	- Non-Meanwell PSU
	- Horizontal drag chain
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- Machine 7 (3:11)
	- RatRig Hypercube frame kit
	- Meanwell PSU
	- Polycarbonate wheels
	- Bondtech BMG in Bowden configuration
	- Capricorn tubing
	- e3D v6 clone hotend
	- Mini DiffIR Z-probe
	- Quad-Z
	- Duet 10" touch display
	- Black Delrin idler pulleys <--- Anodized aluminum idler pulleys???
	- Black corner plates
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- Machine 8 (4:05)
	- Big fuckin ugly mess
	- 10mm PU GT-2 belts
	- Completely overengineered aluminum members
	- 5x e3D v6 gang-mounted on effector
	- Shittiest print at MRRF by far
	- This design is going to give me a tumor if I keep looking at it
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- Machine 9 (4:49)
	- NO extrusion anywhere!
	- Looks like laser-cut and brake-bent sheet steel w/ powdercoating
	- Dual-Z
	- LED strips around inside perimeter of upper frame
	- Linear rail on X- and Y-axes
	- BLTouch
	- Dual-extruder
	- Capricorn tubing
	- Horizontal drag chain
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- Machine 10 (5:18)
	- Beefy AF extrusion frame
	- 4040 on Z-axis structural members
	- 2020 around upper perimeter
	- Thick (>14") aluminum braces on all exterior corners
	- NEMA17 48mm steppers on X and Y-axes
	- Linear rails on X- and Y-axes
	- Direct-drive Titan Aero extruder
	- Berd-Air cooling
	- Meanwell PSU
	- Quad-Z
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- Machine 11 (8:41)
	- 2020 extrusion for all structural members
	- Dual-Z
	- Single 5015-blower
	- Standard HEVO build
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- Machine 12 (8:59)
	- Big-ass printer for 2020 extrusion
	- Dual-Z
	- Horizontal drag chain
	- Creality Hotend Box
	- CRAZY-long Bowden tube (>1m, and it's not even Capricorn!)
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- Machine 13 (9:54)
	- Joshua Vasquez' toolchanger demo
	- Smoothieboard x5C