Fast shipping and a great looking complete kit. Nice box included too!

ERCF v3 Base Kit (Unofficial) — V2.x Hardware, No Motors
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The base a v3 build starts from. This is our ERCF V2.x Community Edition hardware, sold without motors: the rods, D-cut shaft, gear sets, bearings, Binky encoder, switches, LEDs and fasteners. The v3 parts list carries most of it over unchanged.
Unofficial. dfh is not a certified ERCF v3 vendor, and the Carrot Collective has not checked or endorsed this kit. It is V2.x hardware, priced so the rest of a v3 is cheap to finish. We have sold Rabbit kits since 2021.
What you add for v3
- Motors: the v3 direct-drive gear motor (NEMA17, 42STH48-1684 class) and a selector pancake (17HS08-1004S class). A v2-style NEMA14 gear motor also works with the v3 legacy gearbox.
- A servo. v3 dropped the MG90S.
- M5 taps in the ends of the 2020 extrusion. Same length as v2; the v3 backbone bolts into it.
- The short list in the "V2.0 Upgrade" column of the official v3 parts list: one 625 bearing, extra MR85ZZ bearings and 6x3 magnets, one 2x7 MicroFit and a handful of fasteners.
- Printed parts, a control board (MMB or similar) and 2.5 mm ID PTFE tube. The v3 documentation says not to use FEP.
Build it as a v2 instead and you add only motors, a servo, a board and tube.
Singles or a box of eight
Kits ship one at a time, or by the box of eight at a lower price per kit.
In the box
Black nickel heat-set inserts and black anodized 7075 8 mm rods, as in every dfh Rabbit kit. ERCF, ERF, ERCT, toolhead sensor, Binky, hat and toolbox.
| Component | 4 gates | 8 gates | 12 gates |
|---|---|---|---|
| Binky Encoder | 1 | 1 | 1 |
| Omron D2F-5x | 7 | 11 | 16 |
| WS2812B RGBW | 6 | 10 | 14 |
| Wire for LEDs & micro switches (per meter) | 2 | 3 | 4 |
| BMG Clone extruder gear sets | 6 | 10 | 14 |
| 2020 T-Slot extrusion 147mm | 1 | 0 | 0 |
| 2020 T-Slot extrusion 239mm | 0 | 1 | 0 |
| 2020 T-Slot extrusion 331mm | 0 | 0 | 1 |
| 8mm smooth rods 145mm | 2 | 0 | 0 |
| 8mm smooth rods 237mm | 0 | 2 | 0 |
| 8mm smooth rods 329mm | 0 | 0 | 2 |
| D-cut 5mm shaft 164mm | 1 | 0 | 0 |
| D-cut 5mm shaft 256mm | 0 | 1 | 0 |
| D-cut 5mm shaft 348mm | 0 | 0 | 1 |
| Cutting Blade #4 | 2 | 2 | 2 |
| 608ZZ bearing | 5 | 10 | 15 |
| V623ZZ or 623ZZ bearing | 2 | 2 | 2 |
| MR85ZZ bearings | 6 | 8 | 9 |
| M2x6mm or M2x8mm Self-Tapping | 4 | 4 | 4 |
| M2x8mm Self-Tapping | 10 | 20 | 29 |
| M2x8mm SHCS or M2x10mm SHCS | 6 | 6 | 6 |
| M2.5x16 SHCS | 2 | 2 | 2 |
| M3 threaded inserts (M3x5x4mm) | 48 | 53 | 58 |
| M3x3mm set screws | 10 | 15 | 20 |
| M3x6mm SHCS | 2 | 2 | 2 |
| M3x8mm BHCS | 6 | 6 | 6 |
| M3x8mm FHCS | 6 | 6 | 6 |
| M3x8mm SHCS | 65 | 89 | 113 |
| M3x12mm SHCS | 8 | 8 | 8 |
| M3x16mm SHCS | 12 | 22 | 32 |
| M3x16mm BHCS | 2 | 2 | 2 |
| M3x20mm FHCS | 2 | 2 | 2 |
| M3x20mm SHCS | 11 | 11 | 11 |
| M3x25mm SHCS | 6 | 11 | 16 |
| M3x40mm SHCS | 3 | 3 | 3 |
| M3 T-Spring nuts | 23 | 33 | 42 |
| M3 Washers | 5 | 5 | 5 |
| M3 nut DIN934 | 3 | 3 | 3 |
| M5x30mm BHCS | 3 | 3 | 3 |
| M5x16mm BHCS | 2 | 2 | 2 |
| M5 nylock nuts | 4 | 4 | 4 |
| 2.7mm zip ties | 15 | 17 | 20 |
| 3x2mm round neodymium magnets | 3 | 3 | 3 |
| 5.5 mm ball bearing | 6 | 11 | 16 |
| 6x12mm compression spring with 1mm wire diameter | 2 | 2 | 2 |
| 0.4x4x15 compression spring | 2 | 2 | 2 |
| 6x3mm round neodymium magnets | 10 | 20 | 29 |
| MicroFit Connector Plug 4 Position (43640-0401) | 5 | 5 | 5 |
| MicroFit Connector Plug 5 Position (43640-0501) | 3 | 3 | 3 |
| MicroFit Connector Receptacle 4 Position (43645-0400) | 5 | 5 | 5 |
| MicroFit Connector Receptacle 5 Position (43645-0500) | 3 | 3 | 3 |
| MicroFit3 Female Pin (43030-0007) | 32 | 32 | 32 |
| MicroFit3 Male Pin (43031-0007) | 32 | 32 | 32 |
| Rabbit Hat | 1 | 1 | 1 |
| Tool Box | 1 | 1 | 1 |
| 7X7 Drag Chain 250mm (rounded) | 1* | 0 | 0 |
| 7X7 Drag Chain 350mm (rounded) | 0 | 1* | 0 |
| 7X7 Drag Chain 450mm (rounded) | 0 | 0 | 1* |
| ECAS04 | 16 | 28 | 38 |
| Collet Clip | 16 | 28 | 38 |
| GT2 20T (6mm wide) Pulley (5mm bore) | 3 | 3 | 3 |
| GT2 20T (6mm wide) Toothed Idler (5mm bore) | 1 | 1 | 1 |
| GT2 belt 6mm (open) ~1m | 1 | 1 | 1 |
| GT2 Belt Loop (6mm wide) - 188mm | 1 | 1 | 1 |
* May, or may not, include a full cable chain. We're running low. Still a pretty fucking great deal.
Project files and the official parts list: github.com/Carrot-collective/ERCF_v3.
Pairs well with
Builder reviews
Beautiful hardware, honestly, the black heat sets, the nickel-plated fasteners, it's all awesome. Its the same price as other Community V2 kits with (in my opinion) much better hardware that leads to a more aesthetically pleasing final product. Keep it up, good stuff.
DO NOT INGEST THE HEAT INSERTS. <3
Great kit!
Thank you!
I wrote a great essay on both the benefits and difficulties of this kit. No one will ever read it because the site decided I had taken too long and refreshed the listing for me. That is frustrating! Summary: Good: I was able to put it mostly together. Good hardware. Fun hat Bad: The wiring for the the encoder is an EPIC failure. VCC,GND,Sgignal all need separate wires and colors to keep it straight. There is also no pin crimps for the encoder header pins. None of them fit. Am I supposed to solder the wires on? If you order this make sure you have some dupont connectors and female crimp ends on hand along with a a few feet of colored sensor wire. So now modifying their listing statement "All you need is this kit, your own amount of PTFE or FEP Tube and a control board... and Dupont connectors, and colored 28awg 3 color wire and the 3d printed plastic parts"
Thanks for the input. All kits will now ship with a jst connector on the probe.
Arrived quickly with great packing and organization labels. Includes all the BOM with (few extras), the hat was nice addition I could only get a glimpse of it before my kids snatch it away. Now time to start the build
Thank you for the review. I'm sending you an email with a coupon for a free hat on your next order. Can't let the kids have all the fun.



