Ellis Bot V2 - CoreXY by ellisgl

Last crawled date: 3 years ago

COMMENTS WELCOME
After designing V1 (https://www.thingiverse.com/thing:2553656/), I got some feed back over at Reddit (https://www.reddit.com/r/3Dprinting/comments/72tvfv/ellis_bot_corexy_request_for_comments/). So with that feed back, this is what I have come up with.
Design Goals:
Minimum maxium speed of 100 mm/s (150 mm/s would be great, 300 would be awesome) with decent precission and accuracy.
300x300x500 build volume.
100 Micron resolution.
Changes since V1:
Replaced most of the printed parts with metal tubing, 2 1/2" x 2 1/2" x 0.125", 2" x 4" x 0.125" and 2" x 2" x 0.125 (gantry part), and metal plates. Now it's more metal than your grandmas Norwegian black metal band.
Replaced pulleys with F608zz's.
Single Z axis motor, 3 acme screw design with 2 linear rail guides.
Should fit on a 24" deep desk (Pretty standard depth)
Shrunk X and Y down to 300 mm (Well it's a tiny more, but 12" build surfaces will adhere). 500 mm on the Z still.
Drill though the frame, instead of using a lot of corner brackets (though can add them on if needed).
Went up to M5 for a lot of the screws.
Turned motors inwards, which will allow for an enclosure to be built easier.
Features:
300 mm x 300 mm x 500 mm build volume.
3030 extruded aluminum frame. None of that wussy 2020 stuff.
"Easy" Belt tensioning.
Designed around a real E3D V6 hotend and J12A3-4-Z/BX sensor, but designed to allow for easy swapping of parts.
Did a mention, less printed parts, more metal? This should be, in theory, more rigid.
Parts List: (Still working on this. You might find better pricing than what I have linked. Also most of the links, I've never done business with before.)
Frame: (Cost from Misumi: US$300)
HFS6-3030-540-HPW (QNT: 6) (Left / Right)
HFS6-3030-620-HPW (QNT: 6) (Front / Back)
HFS6-3030-800-HPW (QNT: 4) (Vertical)
HFSP5-2020-425 (QNT: 2) (Bed Frame - Left /Right )
HFSP5-2020-630 (QNT: 2) (Bed Frame - Front / Back)

Screws: (US$70)
M3 x 6 mm (QNT: 18) (Linear Rail Blocks, Motor Isolators / Motor) (https://www.aliexpress.com/item/M3-4-5-6-7mm-Stainless-steel-round-head-screws/32480750994.html) (US$4)
M3 x 8 mm (QNT: 18) (Z Axis Anti Backlash Nuts, MGN12 Rail) (https://www.aliexpress.com/item/M3-4-5-6-7mm-Stainless-steel-round-head-screws/32480750994.html) (US$4)
M3 x 12 mm (QNT: 12) (Opto Endstops, Motor Isolators / Motor mount, tool bracket) (https://www.aliexpress.com/item/M3-4-5-6-7mm-Stainless-steel-round-head-screws/32480750994.html) (US$4)
M3 x 40 mm (QNT: 2) (Hotend mount) (https://www.aliexpress.com/item/M3-x-40mm-Alloy-Steel-Hex-Bolt-Socket-Head-Cap-Screws-Black-50-Pcs/32796989886.html) (US$3)
M4 x 12 mm (QNT: 12) (Pillow Bearings) (https://www.aliexpress.com/item/50Pcs-DIN7991-ISO10642-JISB1194-M2-M2-5-M3-M4-Stainless-Steel-304-Hexagonal-Countersunk-Screw-Flat/32808294644.html) (US$4)
M5 x 8 MM (QNT: 16) (Bed Frame) (https://www.aliexpress.com/item/Free-Shipping-50pcs-Lot-Metric-Thread-DIN912-M5x8-mm-M5-8-mm-304-Stainless-Steel-Hex/32716620140.html) (US$5)
M5 x 10 mm (QNT: 34) (Frame to Frame) (https://www.aliexpress.com/item/Free-Shipping-100pcs-M5x10-mm-M5-10-mm-yuan-cup-Half-round-pan-head-black-grade/32624466940.html) (US$9)
M8 x 60 mm (QNT: 7) (Z axis belt bearings) (https://www.aliexpress.com/item/10pcs-lot-ISO7380-M8X60-Stainless-Steel-A2-Hexagon-Socket-Button-Head-Screws/32760302367.html) (US$12)
M8 x 70 mm (QNT: 5) (Ganty belt bearings) (https://www.aliexpress.com/item/10pcs-Lot-Metric-Thread-DIN912-M8x70-mm-M8-70-mm-304-Stainless-Steel-Hex-Socket-Head/32725686708.html) (US$10)
M8 x 110 mm (QNT: 2) (Belt bearings) (https://www.aliexpress.com/item/Free-Shipping-10pcs-Lot-Metric-Thread-DIN912-M8x110-mm-M8-110-mm-304-Stainless-Steel-Hex/32706840720.html) (US$15)

Washers: (US$11)
M5 (5.5 x 10 mm) (QNT: 30) (Frame to Frame) (https://www.aliexpress.com/item/50pcs-lot-Titanium-washer-Ti-flat-washers-GR2-M3-M4-M5-M6-M8-M10-M12-DIN125/32809734695.html) (US$5)
M8 (QNT: 2) (https://www.aliexpress.com/item/100Pcs-DIN125-ISO7089-M1-6-M2-M2-5-M3-M3-5-M4-M5-M6-M8-M10/32795320300.html) (US$6)

Nuts: (US$48)
M3 (QNT: 10) (Mounting MGN12 Rail, Tool and Hotend) (https://www.aliexpress.com/item/100Pcs-Lot-M3-nut-M3-the-pillars-supporting-nut-nut-M3-screw/32729344815.html) (US$2)
M4 (QNT: 12) (Pillow Bearings) (https://www.aliexpress.com/item/Free-shipping-100pcs-lot-Metric-thread-DIN934-M3-304-Stainless-Steel-Hex-Nuts/32405600179.html) (US$2)
M8 (QNT: 33) (https://www.aliexpress.com/item/50Pcs-DIN934-Stainless-Steel-Hex-Nut-Hexagon-Nuts-HW009-M2-M2-5-M3-M4-M5-M6/32799762882.html) ($6)
M5 2020 T Nuts (QNT: 16) (Bed Frame) (https://www.aliexpress.com/item/21pcs-M3-for-20-series-Slot-T-nut-Sliding-nut-Hammer-Head-Fasten-Nut-Connector-Nickel/32696434208.html) (US$7)
M4 3030 T Nuts (QNT: 2) (Z Axis Motor Mount) (https://www.aliexpress.com/item/50pcs-M3-M4-M5-M6-Hammer-Nut-For-3030-Aluminum-Profile-T-Nut-Fastener-Sliding-Nut/32820964627.htm) (US$8)
M5 3030 T Nuts (QNT: 34) (https://www.aliexpress.com/item/50pcs-M3-M4-M5-M6-Hammer-Nut-For-3030-Aluminum-Profile-T-Nut-Fastener-Sliding-Nut/32820964627.htm) (US$7)
M3 3030 T Nuts (QNT: 60) (https://www.aliexpress.com/item/50pcs-M3-M4-M5-M6-Hammer-Nut-For-3030-Aluminum-Profile-T-Nut-Fastener-Sliding-Nut/32820964627.html) (US$16)

Belts: (US$54)
A 6R51M830060 GT2 Belt (QNT: 1) (Z axis belt) (http://shop.sdp-si.com/catalog/product/?id=A%206R51M830060)
6 mm GT2 Glass Fiber Belt (QNT: 4M) (https://www.aliexpress.com/item/GT2-open-timing-belt-6mm-width-10m-length-rubber-with-glass-fibre/727775591.html) (US$39)

Rails / Blocks: (US$119)
MGN15R630CM + MGN15C Block (QNT: 2) (Can buy Chinese version @ 700 mm and cut it down) (https://www.aliexpress.com/item/Free-shipping-15mm-Linear-Guide-MGN15-700mm-linear-rail-way-MGN15H-Long-linear-carriage-for-CNC/32804832754.html) (US$82)
MGN12R545CM + MGN12H Block (QNT: 1) (Can buy Chinese version @ 600/700 mm and cut it down) (https://www.aliexpress.com/item/Kossel-Mini-for-12mm-Linear-Guide-MGN12-700mm-linear-rail-MGN12H-Long-linear-carriage-for-CNC/32699512468.html) (US$37)

Metal Tubing (Extra could be used for L-brackets and flat parts) (Cost from Online Metals: US$84):
2" x 2" x 0.125" (QNT: 1') (https://www.onlinemetals.com/merchant.cfm?pid=14952&step=4&showunits=inches&id=1270&top_cat=60)
2.5" x 2.5" x 0.125" (QNT: 3') (https://www.onlinemetals.com/merchant.cfm?pid=18018&step=4&showunits=inches&id=1270&top_cat=60)
2" x 4" x 0.125" (QNT: 3') (https://www.onlinemetals.com/merchant.cfm?pid=7038&step=4&showunits=inches&id=1268&top_cat=60)

Electronics: (US$487)
Cohesion3D ReMix with LCD (QNT: 1) (http://cohesion3d.com/cohesion3d-remix/) (US$186)
TMC2100 stepper motor driver (QNT: 4) (https://www.aliexpress.com/item/5pcs-TMC2100-StepStick-MKS-stepper-motor-driver-silent-excellent-stability-and-protection-superior-performance/32818046477.html) (US$34)
E3D V6 Gold Hotend 24V (QNT: 1) (https://e3d-online.com/v6-gold-hotend) (US$100)
J12A3-4-Z/BX (QNT: 1) (https://www.aliexpress.com/item/1pcs-3D-Printer-Parts-NPN-DC6-36V-4mm-Normally-Open-proximity-switch-LJ12A3-4-Z-BX/32810192496.html) (US$3)
Opto Endstop (QNT: 2) (https://www.aliexpress.com/item/3-Pcs-Opto-Optical-Endstop-End-Stop-Switch-CNC-For-3D-Printer-Mendel-Prusa-CLH-8/32811838464.html) (US$2)
NEMA 17 Motors (QNT: 3) (https://www.aliexpress.com/item/Free-shipping-3PCS-Nema17-Stepper-Motor-42-motor-Nema-17-motor-42BYGH-1-7A-17HS4401-motor/32665922113.html) (US$38)
Bondtech QR 1.75 Universal Extruder + Standard Mount (QNT: 1) (US$165)
24V Power Supply (QNT: 1) (https://www.jameco.com/z/LRS-350-24-MEAN-WELL-350-4W-24V-14-6A-Single-Output-Switchable-Power-Supply_2219823.html) (US$40)
GX12-6 Connector Set (QNT: 12) (https://www.aliexpress.com/item/Free-Shipping-20pair-Male-Female-Diameter-12mm-Wire-Panel-Connector-GX12-6P-GX12-6-M12-circular/32785560601.html) (US$19)

Other Hardware: (US$131)
KP08 Pillow Bearings (QNT: 6) (https://www.aliexpress.com/item/2PC-KP08-8mm-Bore-Diameter-Self-Align-Mounted-Pillow-Block-Bearing-Zinc-Alloy-Good-Quality-for/32512616547.html) (US$9)
TR8x2x1000 mm w/ Anti Backlash nuts with thread screw holes (QNT: 3) (https://www.aliexpress.com/item/A-Funssor-200-300-400-500-600-1000mm-length-TR8-lead-screw-TR8-Spring-Loaded-Anti/32826166651.html) (US$66) (Message seller or you will get TR8x8)
300x300 120V 600W Silicone Heater (QNT: 1) (https://www.aliexpress.com/item/Silicone-Heating-Pad-Heater-120V-600W-300x300mm-WITH-100K-thermistor-and-adhesive-back/32718164240.html) (US$30)
2020 Corner Brackets (QNT: 2) (https://www.aliexpress.com/item/50pcs-2020-Corner-Bracket-Fittings-2017-Slot-6-Corner-Angle-L-Breakets-Connector-Aluminum-Profile-Accessories/32777744098.html) (2020 Bed Frame) (US$11)
NEMA 17 Motor Vibration Damper (QNT: 3) (https://www.aliexpress.com/item/5Pcs-Lot-Metal-Stepper-Motor-Vibration-Damper-Shock-Absorber-For-Nema-17-for-3D-Printer-Printing/32828378712.html) (US$8)
PTFE Tubing OD 4 ID 2 (QNT: 3 meter) (https://www.aliexpress.com/item/3D-printer-1M-2-4mm-4-6mm-PFA-PTFE-Tube-Teflon-PiPe-J-head-hotend-RepRap/32743404843.html) (US$7)
350 mm x 350 mm x 6mm Aluminum Plate (QNT: 1) (Bed) (US$TBD - custom)

Current Total: US$1304 (Not completed yet, and still need to add in machining costs)
Notes:
Main frame holes are 6 mm.
Updates:
2017-10-18:
Enlarged access holes on motor mounts.
Added holes for the tool mount for the linear rail bearing.
Added Sketchup file for just the metal parts.
2017-10-19
Enlarged pillow bearing mount holes for M4.5, instead M4.
2017-10-20
Corner brackets for 2020 bedframe.
2017-10-22
Switching from Azteeg X5 GT to Cohesion3D ReMix.
Added Inside Feet. (8 mm mount to surface)
2017-10-26
Added hole placment beam file.
Things still to do:
Part Cooler.
Controller Enclosure.
Parts list.
Current Reddit discussion: https://www.reddit.com/r/3Dprinting/comments/773lfj/ellis_bot_v2_corexy_request_for_comments/