4019 – ReliaBuild BIG Full Electronics Upgrade Kit (for RBB, BIG 12 x 16 Build Area)

4019 – ReliaBuild BIG Full Electronics Upgrade Kit (for RBB, BIG 12 x 16 Build Area)


Full ReliaBuild 3D upgrade kit for Rigidbot Big. See below for more information on what the kit includes. For RB1 upgrade kit click here.


Kit No. 4019


(1) Part No. 3044   4E3D Mainboard

(1) Part No. 3092   24-volt Power Supply (Including 120v/240v switchable input and 24v-550W output with Power cable)

(4) Part No. 1033   M3x8mm Bolts

(1) Rigid Adapter for back Y-axis Support Bars

(1) Part No. 3029   Machined Aluminum Upgraded Bed (Stretched Flat Aluminum)

(7) Part No. 1035   M3x5mm Screws

(7) Part No. 1116   M3 Fiber Washers

(1) Part No. 1078  Extruder Metal Fan Grill

(4) Part No. 1035  M3X5mm Screws

(1) Part No. 3050B Main Board Riser

(4) Part No. 1032   M4x8mm Bolts

(1) Part No. 4008   Upgraded Extruder Mounting Block Kit (See here)

(1) Part No. 3049   Upgraded Heated Bed PCB (4e3d)

(1) Part No. 2094   Locking Extruder Cable (Longest)

(1) Part No. 2093   Locking Heated Bed Cable (Short)

(1) Part No. 3065   Extruder PCB Board for Extruder and connecting wiring

(1) Part No. 3023   LCD Cable Adapter (either REP RAP adapter or original RB LCD)

(3) Part No. 1113    Limit Switch Cable (Short)

(1) Part No. 2104   LCD Positive Lock Cable

(1) Part No. 3011   Main Board Cover

(7) Part No. 2045  M3x14mm Screws

(1) X Limit Switch Stop – 3D Printed Part

(1) X Limit Switch Support – 3D Printed Part

(5) Part No. 1105   Zip Ties

(1) Part No. 3301   USB Plastic Insert


The basic upgrade instructions are available for FREE download here.

There are printable STL files for feet, anchors, mainboard cover and risers, etc. All of the files can be found at https://www.thingiverse.com/JP1/designs .

The firmware needed for this upgrade is listed as a FREE product for download after checkout. Be sure to grab that here. and be sure to uncomment “BIG” in the firmware before uploading so Arduino sees the new build size. Email us if you need details on how to do this. Thanks!

Additional information

Weight 15 lbs
Dimensions 25 x 12 x 9 in