This guide serves as a complete technical summary of every piece of information provided by Invent-a-Part to the community over the last year of updates. If it is missing anything please feel free to add in the comments.
The purpose of this guide is to act as a quick reference, and refresh people's memories - As some of this stuff is quite old. It should contain everything officially confirmed by IAP/Michael on Kickstarter/Instagram.
- Power Supply (connector) is 24V and 17A = 400W
- Heated build plate contains red LED’s which illuminate when the bed is heating with built in thermistor.
- The standard heated build plate measures around 3.6 to 4.0 ohms.
- Heat up times for Heatbed (Heated build plate)
- Standard: 65°C = 3-5minutes, 110°C = 7minutes
- RigidBot Big: 65°C = 4-6minutes, 110°C = 8 minutes
- Heated bed power does not go through physical power switch - is switched via a transistor on mainboard.
- Board based on Arduino Mega2560 & RAMPS 1.4 boards (schematic PDF) (schematic 1200dpi) ATMega2650 (pin mapping)
- Custom Marlin firmware
- 5V pins available (limit switch connector a good option)
- No 12V supply available
- USB Socket rated at 300mA
- Fan1 connector J4 on extruder breakout board for object-cooling fan.
- Fan1 connector is PWM-controlled and can be completely controlled by software.
- Fan2 is connected directly to 24v, and thus is always on. This is the fan to use for the extruder fan.
- Easy access to I2C bus for future expansion.
- Dip switch were planned to select 10x10x10 or 12x16x10 on the board itself and dual/single extruder but does nothing. These switches were not implemented on the rigidbot.
- 3 limit switches, however can use upper & lower limits (6 limit switches) so you can make a custom sized” rigidbot.
- Support for a multi-coloured LED strip
- Large 4 layer board
- Dual extrusion ready
- Optional LCD/USB Board contains the following scripted features:-
- Print from USB
- Bed leveling Script (will run a program which automatically moves the head to the four leveling positions on bed)
- Change Filament script - to load/unload material
- Pause/Resume script
- Manual Jog - manually move printhead in xyz positions.
- Except for one allen wrench, all necessary tools are included with kit for full assembly. The missing allen wrench is for the belt tensioners. However a small philips screwdriver & a mallet for constructing the frame are also recommended
- Polymer sleeve made from PTFE/Teflon - recommended not to exceed 250°C - 1/4" (6.35mm) outside diameter, 2mm inside diameter, ~16.65mm length (varies depending on exact thickness of mounting block, PEEK insulating block and heater block.. should have no gap between PTFE tube and either mounting block or heater block)
- Z-rod will require cleaning if you're assembling yourself
- LM8UU Linear Motion Bearings (11 per printer)
- Linear Rods - Chrome Hardened Linear Rods (8 per printer)
- a user reports: "the long rods, 2 of them are used for the build plate and 2 of them are used for the extrude head. The four short rods go in your left and right frame rails for your z axis motion/up and down"
- GT2 Pulley, 36 teeth
- GT2 Belts
- Injection moulded corners with threaded inserts in places to assure accuracy and reduce the amount of maintenance required.
- Smooth rods are 8mm in diameter
- Tubing is standard .75inch / 19mm bar stock.
Mechanical drawings for the RB regular frame.
- RigidBot design will be available in STL format.
- Aluminium hot-end with brass extruder tips with a 0.4mm nozzle diameter M6 thread
- RB build plate DXF file File:RB3 Bed.dxf.zip
- RigidBot 10x10x10 Dimensions: 19" x 16.5" x 16" (48cm x 42cm x 43cm)
- LCD adds 3/4" depth
- Build plate can extend up to 2" in front of the frame, and 2" behind the frame during printing
- RigidBot 12x16x10 Dimensions: 24.5" x 19" x 16" (62cm x 48cm x 43cm)
- LCD adds 3/4" depth
- Build plate can extend up to 3" in front of the frame, and 3" behind the frame during printing
Recommended Settings & General Specifications
- Print Speed: 75mm/s (suggested speed only. can go faster)
- Filament Diameter: 1.75mm
- If you are using a filastruder to create your filament, the filament is often between 1.69-1.71mm diameter (due to the size of drill bit used to produce the nozzle)
- Maximum temperature: 250°C (using the supplied extruder)
- 100 micron layer resolution
- 0.4mm nozzle diameter
- RigidBot kit weight 15KG (35lbs)
- RigidBot Big kit weight 20KG (44lbs)
- +/- 0.0762mm in the x/y axis for tolerance. (.003")
- 10x10x10" build dimensions = 254 x 254 x 254mm
- 12x16x10" build dimensions = 304 x 406 x 254mm
The following parts were copied from the lists provided here: https://www.kickstarter.com/projects/1650950769/rigidbot-3d-printer/posts/707929 Some part names are linked to their STL files.
|1002||RigidRod Connector (Official)|
|1003||Motor Mount (Official)|
|1004||Belt Tension (Official)|
|1005||Linear Bearing Holder (unofficial STL) alt. version 2.1 (also unofficial)|
|1006||Belt Connector (unofficial STL)|
|1007||Z-Nut Bracket (Official) / (unofficial STL) Printer Friendly version|
|1008||Limit Switch Holder (unofficial STL)|
|1009||RigidBoard Enclosure A + B (Official STLs)|
|1010||Rigid SQ - Bottom Back|
|1011||Rigid SQ - Bottom Front; Dimensions: H 20mm × W 20 mm × L 430 mm, Тhickness 2 mm|
|1012||Rigid SQ - Bottom Right|
|1013||Rigid SQ - Bottom Left Dimensions: H 20mm × W 20 mm × L 380 mm, Тhickness 2 mm|
|1014||Rigid SQ - Long Vertical|
|1015||Rigid SQ - Short Vertical|
|1016||Rigid SQ - Middle Long|
|1017||Rigid SQ - Middle Short|
|1019||Rigid SQ - Top Short|
|1020||Rigid SQ - X Axis Support Bottom Left Dimensions: H 20mm × W 20 mm × L 190 mm, Тhickness 2 mm|
|1021||Rigid SQ - Spooler Rack|
|1022||Rigid SQ - 8mm Steel ROD X axis (Gantry) 17 1/8" (435mm) long|
|1023||Rigid SQ - 8mm Steel ROD Y axis (Bed) 16 5/8" (423mm) long|
|1024||Rigid SQ - 8mm Steel ROD Z axis (338mm) long|
|1025||Spooler Rack Bar 16 5/8" (423mm) long|
|1026||Aluminium Build Plate for ordinal size printer (weight 662g)|
|1027||Aluminium Build Plate Support for ordinal size printer (weight 248 g)|
|1028||Aluminium Head Plate (unofficial STL) for ordinal size printer (weight 270 g)|
|1029||Plastic Side cover Small|
|1030||Plastic Front cover Small|
|1031||Plastic Back cover Small|
|1032||Button Allen - M4 x 8 mm|
|1033||Allen - M3 x 8mm|
|1034||Allen - M3 x 22mm|
|1035||Allen - M3 x 4mm|
|1039||Bearing 608 for X/Y Belt|
|1040||Heated Bed Nut - M3 Nut|
|1042||Limit Switch PCB|
|1043||RigidSpring (18mm uncompressed, 7mm inner diameter, 9mm outer diameter, 1mm wire)|
|1045 (1334)||Nema 17 Motor (Technical_Specifications_Steppers) SM42HT33-1334A (X-axis, Extruder)|
|1046 (1684)||Nema 17 Z Motor (Technical_Specifications_Steppers) SM42HT38-1684A (Y-axis, Z-axis)|
|1047||Electronic - Heated Build PCB|
|1048||Rigid Rod Bearing|
|1049||Fastener - 10mm M6 thread|
|1050||Extruder Head Hardware (5 Parts)|
|1052||24v Cooling Fan|
|1054||Head - Plastic - Material Top Load (scale to 25.5)|
|1055||Head - Plastic - Material Load Arm (scale to 25.5)|
|1056||Head - Plastic - Material Load Insert (scale to 25.5)|
|1057||Extruder Feed Ball Bearing|
|1059||Fastener - Head Small|
|1060||Fastener - Head Large|
|1061||Aluminium Mounting Block|
|1062||Teflon/PTFE Feeder Tube|
|1063||Aluminium Heating Block|
|1064||Brass Extruder Nozzle - .4mm|
|1065||Extruder Head PCB|
|1066||Head -24V heater cartridge|
|1067||Head - Thermistor|
|1068||Head - Stainless Steel Drive|
|1069||Belt Tension Nut M6 1mm Pitch|
|1070||Rigid logo sticker|
|1071||Rigid Hot Sticker|
|1072||Rigid Safety Sticker|
|1075||Z - Coupler|
|1077||Z-Nut - 8mm Brass|
|1080||Cardboard Box for Packing A|
|1082||Styrofoam - Lid and Base box for B|
|1083||Cardboard Box for Packing B|
|1088||LCD - Electronic PCB|
|1089||LCD - Arrow Button|
|1090||LCD - Center Button|
|1091||LCD - Plastic Enclosure|
|1093||Heated Base Plate Wiring|
|1096||PLA, white, 1Kg|
|1100||Styrofoam for LCD display|
|1101||Box for LCD Display|
|1102||Styrofoam for spooler rack small|
|1103||Box for spooler rack|
|1104||LCD - Mating Wiring|
|1105||Zip Tie Pack of 6|
|1108||Extruder Screw - M3x3mm, flat top, countersunk, 6mm overall length|
|1109||Extruder Screw - M3x42mm with an 18mm threaded portion|
|1110||Extruder Screw - M4x10mm shoulder, with M3x3mm threaded portion|
|2010||Rigid Big - Bottom Back|
|2011||Rigid Big - Bottom Front|
|2012||Rigid Big - Bottom Right|
|2013||Rigid Big - Bottom Left|
|2016||Rigid Big - Middle Long|
|2017||Rigid Big - Middle Short|
|2019||Rigid Big - Top Short|
|2022||Rigid Big - 8mm Steel ROD X axis (Gantry) 23 1/8"|
|2023||Rigid Big - 8mm Steel ROD Y axis (Bed) 18 1/2"|
|2024||Rigid Big - 8mm Steel ROD Z axis|
|2025||Powdercoated Spooler Rod|
|2026||Aluminium Build Plate|
|2027||Aluminium Build Plate Support|
|2029||Plastic Side cover Large Ridgy|
|2030||Plastic Front cover Large Ridgy|
|2031||Plastic Back cover Large Ridgy|
|2047||Heated Base Plate BIG|
|2082||Styrofoam Lid and Base - Box C|
|2083||Cardboard Box for Packing C|
|2102||Styrofoam for Spooler Rack Big|
Replacement Parts available to order
- Part# 1042 - Limit Switch - set of three $4.50
- Part# 1043 - Bed Leveling and Extruder Springs - set of 5 Springs $4.00
- Part# 1045 - NEMA 17 Stepper Motor (X-axis, Extruder), 33mm long, 4 lead, 5mm shaft
- AutomationTechnologiesInc NEMA17 Bipolar Stepper Motor 32 oz-in (KL17H234-033-4A) via Malodave1 - Ordered 2 @ $7.99 each. Shipped same day, arrived 1 day later. The wires are colored differently to the IAP part, but the following correspondence worked for Ed Williams (IAP/AT) (red/green, blue/red, black/yellow, green/blue) No flat side on the shaft. via Kyre These motors are 0.33 amps/phase not 1.33 amps per phase. They will GROSSLY OVERHEAT unless you adjust the stepper pot. Nominal voltage 0.13 V instead of 0.53 V.
- Note: Items below are probably compatible but don't have the flat side for set screw to grip to so you might do a little modification to get secure grip
- AliExpress Nema 17 stepper motor with 4 wires/0.95A/0.16N.m(23oz-in) 33mm - $11.33, <24 hour payment (processed within an hour for me) verification, 5 days processes, 3-7 days shipping, $14 shipping to US (Maryland) - Note: Shipped 2 days after order, arrived (China to Maryland, USA) 7 days later
- Banggood JKM NEMA17 SKU149731 - $12.99, Paypal is an option, 7-20 BUSINESS days shipping, shipping is free via ramak makar - Note: Shipped within 2 days of order (a day or two delay for backorder), 16 BUSINESS days later it arrived. Shipping China to Maryland, USA. Return label said Zurich, Switzerland
- (unverified) DEHANG 40mm 1.8 Degree 4 Leads 2.8V - 40mm instead of 33mm but fairly close
- (unverified) Signstek 3D Reprap Printer CNC 40mm NEMA 17 3.4V - Again, 40mm.. so slightly longer
- Part# 1046 - NEMA 17 Stepper Motor (Y-axis, 33mm long, 4 lead, 5mm shaft
- (verified) NEMA17 OSM 59oz-in 0.9 degree Stepper Motor Works for both X and Y-axis, but requires doubling the steps per unit. These run smoother than the old X and Y steppers and cooler than the Z steppers. Shaft is slightly shorter (perfect height for 16T pulleys). Bare leads so a connector is needed. Motor body is longer than the default steppers.
- (verified) 76oz-in 1.8 degree Stepper Motor Only tried on Y, but should also work for X-axis. Runs warmer than the OSM stepper, but cooler than the original Y stepper. Connector needs to be replaced and pots readjusted. Motor body is longer than the default steppers.
- Part# 1050 - Extruder Hot End $25.00
- Alternate E3d v5 All metal Hot End $60 Note: you will need to print or fabricate a mounting solution as well as provide stepper motor, drive gear and connectors.
- Alternate E3d v6 All metal Hot End $80 Note: you will need to print or fabricate a mounting solution as well as provide stepper motor, drive gear and connectors. See E3Dv6 Hotend Mount
- PICO all metal hot end $99-$123.99 Note: you will need to print or fabricate a mounting solution as well as provide stepper motor, drive gear and connectors.
- Alternate J-Head from various manufacturers $30 - $60 Note: you will need to print or fabricate a mounting solution.
- Part# 1052 - 24v Extruder Fan and Fan Guard $4.00 - Be aware that if you remove fan guard, you'll need to shim or fan and heat sink will be loose
- Alternate from NewEgg without fan guard $3.46 Be careful with the polarity of the wires. They may be reversed from the RB fan and can lead to the fan being destroyed. - (tgryffyn confirms replacement works and wires reversed, also put label side toward heat sink or fan will rub against heat sink)
- VvW Brushless 40x40x10mm DC 24V 4010 Cooling Fan on Amazon via John Laser
- Orion 24V 40mm fans at Mouser
- Brushless DC Cooling Fan 7 blade 24V 0.15A 40mm x40mmx10mm via Horst Otto on G+
- Any common 12v fan can be used by employing a small switching voltage regulator. $3.68 Resistors and linear regulators will be required to dissipate too much heat from the 12V step down.
- OctoPart search for 40mm x 40mm x 10mm, 24VDC fan
- Part# 1053 - Extruder Heat Sink $4.00
- Part# 1062 - PTFE/Teflon feeder tube - 1/4" (6.35mm) outside diameter, 2mm inside diameter, ~16.65mm length (varies depending on exact thickness of mounting block, PEEK insulating block and heater block.. should have no gap between PTFE tube and either mounting block or heater block)
- PTFE Tube for Geeetech J-head Hot End - $3.99 - Only 6mm outside diameter but might work via Scott Zerby
- 10cm PTFE tube for 1.75mm filament on 2printbeta.de - German site - 1.8mm ID, 6.4mm OD. Might be a little tight inside and might be a little thick outside, but may work. via Dominik Genz here
- PTFE Teflon Rod 1/4" x 1' - $2.99/ea, sale ended via Charli Dean - REMINDER: Rods need to be drilled before being used
- PTFE Round Rod, 1/4" diameter, 36" length - $9.32 - via H First - REMINDER: Rods need to be drilled before being used
- A possible combo solution is inserting a 4mm OD x 2mm ID tube into a 6mm OD x 4mm ID tube, reported by David Retske on G+
- Another "maybe" solution from Dylan Lynch on G+ - the 1/4" OD, 1/8" ID might work for the RB but it's a little bigger than 2mm ID that's typically used. Not sure how this affects things.
- NOTE: The Bowden tubing for the E3D hot end looks like it could work, but it's only a 4mm outside diameter so it's likely not preferable as more than a temporary stop-gap fix, if that
- Part# 1065 - Extruder PCB $5.00 - Dual Extruder / replacements available at Peter Stoneham's forum
- Part# 1066 - 24V, 40W Heater Cartridge with connector $5.00
- NOTE: Unless otherwise noted, all of these require an XHP-2 connector added to the end to make it fit the RB's extruder board connection
- (unverified) Vktech® 5pcs Cartridge Heater Stainless Steel 1M for 3D Printer (24V/50W) via John Logajan
- Filastruder.com E3D Heater Cartridge - NOTE! BE SURE TO GET THE 24V VERSION!! Should test at 11-14 Ohms, make sure you're sent the correct one before plugging it in or you'll have a bad time
- NOTE: Might not be exactly 40W. Tim Elmore from Filastruder notes that their 24V heater cartridges will range from 11-14Ohms which works out to be 40W to 53W roughly
- Finnish Webshop 3D-Tulostus.fi ("3D-Printing.fi") has a 6mm, 24V 40W heating element for 9.00€
- Part# 1067 - Screw in Thermistor with connector $9.00
- Alternate from eBay $9.95 Be aware the wires are too short and the connector incorrect for a direct replacement. You will need to cannibalize the original thermistor for the proper connector and some length of wire, then solder and shrink tube it to this one.
- Part# 1068 - Extruder Stainless Gear $9.00 - Appears to be an MK7 drive gear/hobbed gear. MK8s are available but have a smaller diameter so you'll have to adjust some parameters to get the same feed rate most likely (some info mk7 vs mk8 noting the 10.5mm vs 7mm effective diameter)
- Part# 1093 - Heated Bed Cable $4.50
- Part# 1106 - Extruder Head Cable $4.50
- Part# 1109 - Extruder Screw - M3x42mm with an 18mm threaded portion
- Alternate from HobbyTown $2.99 Verified to work
- HPI Racing Z303 Cap Head Screw, M3x42mm, Black (6) Unverified
- Part# 1113 - Limit Switch Cable $5.00
- Part# 1154 - Extruder Head plastics with bearing $9.00
- Part# 1352 - Brass nozzle - M6 thread (course pitch?) - MK7 style, 5mm long, MK7 might have 7mm hex diamter and MK8 might have 6mm hex nut (via ramak makar, et al). NOTE: If you replace nozzle, heater block, PEEK block or mounting block PTFE tube must fit properly through them, leaving no gaps
- Alternate from eBay $2.50/ea These nozzles fit, but have a slightly longer threaded portion than those supplied by RigidBot. Overall height is about the same when screwed in to match the PTFE tube.
- Alternate from AliExpress $9.00 for 5 Select 5 from 0.2mm, 0.3mm, and 0.4mm nozzles. These mate with the PTFE tube supplied with the RigidBot, but have a slightly shorter threaded portion.
- Alternate from Amazon (Prime Eligible) 5 for $14. 5mm threaded portion matches the ones supplied with the RigidBot and has been verified to work. These nozzles are thinner (6mm vs 7mm) but approximately the same height.
- Signstek 5PCS 3D 0.4mm Extruder Brass Nozzle Head for MK8 1.75mm reported good by Grant Zitelli on G+
- 24V 400W Power Supply
- Alternate 400 watt PSU from AliExpress, $20.25
- Alternate 451W PS from TRC Electronics $67.40
- Alternate 360W PS $27 Note the RigidBot Big has been measured to draw 330W continuously with the heated bed enabled, and at least one report of Peak usage reaching 370w.
- Note: with all of these alternate power supplies, you will need to work out the connection to your controller board. The RigidBoat board appears to need a KPPX-4P connector from the power supply. Other boards likely use bare wire and screw terminals. You will also have to wire these power supplies to your AC outlet. WARNING: when wiring the plug that goes to your RigidBot be sure to note the polarity is reverse. Red goes to V- and black goes to V+
- 3d printer 24V atx-400w computer power supply from shenzhen Possible identical stock RB replacement. Some call this the RigidBrick. The build quality on the stock PSU is pretty low. On top of that, this link is from Alibaba and requires a minimum order of 100 pieces. Including here in case anyone absolutely needs a stock RB power supply for some reason. via Matthias Fax
- Stepper Motor for extruder and X-axis (RB42HT33-1334a)
- Original from Alibaba $10 for 2
- Z-rod Upgrade
- Original from Alibaba $150 for 5
- 24V Control Board
- Miscellaneous Connectors
- White, 2-pin connectors for fan, thermistor, etc. Thanks Pasquale Di Donna and Karl Nilsson for the info here. You'll need a proper crimping tool as well.
- JST (company) XHP-2 female connector also requires metal contacts inside, SXH-002T-0P0.6
- 10 pack, male, female and crimps via Tom Carson
- 50 pack, male, female and crimps via Tom Carson
- 100 pack crimps, same used for 2 pin and 4 pin, via Tom Carson
- 10pk XHP-2 with leads - eBay.ca via Tom Carson and Misha Lytvynyuk
- JST XHP-2 (2 pin connector) from Partco webshop in Finland
- White, 4-pin connectors used on stepper motors. You'll need the metal contacts and crimping tool mentioned for the XHP-2 connectors as well
- Extruder cable - You'll need roughly 4ft of 14 position/conductor ribbon cable (standard 0.05" spacing used in computers) and two female 14 position IDC connectors (standard 0.1" pitch used in computers)
- Heated Bed Cable information here
- Power Supply Connector (male that plugs into main board) - Kycon KPPX-4P Datasheet at Kycon.com and discussion on G+
- White, 2-pin connectors for fan, thermistor, etc. Thanks Pasquale Di Donna and Karl Nilsson for the info here. You'll need a proper crimping tool as well.