Posted on the FRC Blog, 12/9/24 by FIRST Robotics Competition Staff
2025 KitBot Shopping List
by FIRST Robotics Competition Staff • December 09, 2024
Kickoff is just a few weeks away and we’re counting down the days until we unveil REEFSCAPESM presented by Haas as well as this year’s KitBot. With the help of our friends at SendCutSend, we wanted to share a little teaser of some components of the KitBot.
https://www.youtube.com/shorts/RkFbFxejePA?feature=share
We previously shared some information on the KitBot but to help ensure that teams have the materials on hand to make the KitBot, we wanted to release a shopping list of some items to buy to help teams prepare before Kickoff.
The good news is that we were able to add even more items to the Black Tote this season, which means that teams receiving the Black Tote have fewer items to buy this year! Huge shoutout to these suppliers who helped us ensure most of the components needed for the KitBot were in the Black Tote:
- 3M
- AndyMark
- Formlabs
- The Thrifty Bot
- Rev Robotics
- SendCutSend
- Stratasys
- WestCoast Products
To start, we’re going to share the materials that all teams planning to build the KitBot will need to source regardless of if they opted out of some of the Kickoff Items.
Table 1: Raw Materials
Material Qty Info 1 in. x 1 in. Aluminum Square Tube 1/16 in. wall thickness. 8 ft. long. (25 mm x 25 mm, 1.5mm wall thickness, ~244 cm long) 2 Okay to use other wall thickness if preferred. Okay to use other lengths down to 32 in., need quantity 5 for lengths from 44 in. to 58 in. (112 cm to 147 cm).
All parts are designed so that Pre-Drilled Tubing such as WCP-0924, WCP-1023, am-5177, REV-21-2160 can be easily used if preferred.4 ft. x 4 ft. Polycarbonate Sheet 0.118 in. thickness (~1200 mm x 1200 mm, 3 mm thickness) 1 It is okay to use 0.125 in. instead if preferred.
Make sure to use polycarbonate and not acrylic. Acrylic of this thickness is likely to shatter either when machined or when subjected to the shock of robot operation.
Other materials (0.125 in. aluminum, 0.25 in. plywood, etc.) may be used but have not been tested and bolt and spacer lengths may be affected if modifying material thickness.
Also available from vendors in smaller sizes such as: WCP-0294 (3 sheets needed)2 ft. x 2 ft. Sheet of ¾ in. Plywood (600 cm x 600 cm, 19mm thickness) 1 Used for electronics board. May also need additional plywood for Bumper Backing, see below for details.
Other materials may be used but have not been tested and bolt lengths may be affected if modifying material thickness.(Optional) – ¾ in. Schedule 40 PVC Pipe (20mm DIN PVC pipe) 2 ft. (~600mm) This material is to make spacers which can also be purchased or can be 3D Printed. Table 2 shows the parts needed for the KitBot that must be sourced by the team. Some items can be 3D printed or created from raw material rather than sourced directly.
Table 2: Team Sourced Parts List
Part Qty Info 2 in. long ½ in. Hex Spacers (KB-25018) 4 Can be 3D Printed or made from PVC pipe.
May be substituted with 5/8 in or ¾ in. round (~15mm-20mm diameter, 50mm length) spacers that are available at many hardware stores, McMaster, MSC, etc. or hex spacers that are available at many common FIRST Robotics Competition suppliers. May be built up from smaller lengths.2-3/8 in. long ½ in. Hex Spacers (KB-25019) 2 Cable Ties 10 50lb, 8 in. Cable Ties (~5mm width, 203mm or greater length)
These cable ties are available in the Rookie Tote50lb, 8 in. Cable Ties (~5mm width, 203mm or greater length)
These cable ties are available in the Rookie Tote#10-32 1.5 in. long Button Head Cap Screw 8 Used to attach the electronics board. May use other bolt head styles or M5 ~40mm. #10-32 Locknut 8 Used to attach the electronics board. M5 Locknut if using M5 bolts. We’re also including some step-by-step instructions on how to build bumpers specifically for the KitBot this year. Teams may choose to use other materials if preferred, but Table 3 lists the items needed to build the bumpers as we describe:
Table 3: Bumper Materials
Material Qty Info 4 ft. x 8 ft. Sheet of ¾ in. Plywood (1.2 m x 2.4 m, 19mm thickness) 1 The size noted here is used for the electronics board and bumpers.
May also use two 2 ft. x 4. Ft (~60 cm x 120 cm) sheets or a 5 ft. x 5 ft. (~150 cm x 150 cm) sheet. Other materials may be used but have not been tested.(optional) Brackets 4 Brackets are only needed if teams are making L Bumpers.
Teams can source any bracket similar to the Bumper Wood Corner Brackets (am-3233a) or can manufacture similar brackets out of aluminum angle.Pool Noodles, 2 ½ nominal diameter (~63 mm), ~55 in. long (~140 cm) ~10 5 Pool Noodles are provided in the Rookie Tote. Rookie teams can either source 5 additional pool noodles or do swappable bumper covers.
Teams may optionally choose to use other padding if preferred as noted in the Game Manual.(optional) ½ in. Foam Tiles (~13 mm) ~5 sq ft. (~½ sq m) Frequently sold as 2 ft. x 2 ft. tiles, 2 tiles will back one set of bumpers. Red Fabric 1 ½ yards (~1.4 m) 18 in. x 160 in. of each color is included in the Rookie Tote and is sufficient for a set of Bumpers.
If buying in a standard width (60 in.), 1 ½ yards are needed of each color.Blue Fabric 1 ½ yards (~1.4 m) (Optional) White Paint 1 1 small paint container should be sufficient. Teams may use other materials to add numbers to Bumpers. Finally, if you want to be able to build the KitBot Superstructure on Kickoff weekend and opted out of the Black tote, you should make sure you have the items listed in Table 4.
Table 4: Black Tote Parts List
Part Qty Provided part and Info Alternative Parts Plate 1 (KB-25001) 1 Laser-Cut Aluminum Plate Can be manufactured out of Aluminum Sheet 1/8 in. thick or teams can purchase on Kickoff from any supplier who chooses to produce them or use the SendCutSend Voucher to have these produced. Plate 2 (KB-25002) 1 Laser-Cut Aluminum Plate Back Angle Plate (KB-25003) 4 Laser-Cut Aluminum Plate T-Bracket (KB-25004) 4 Laser-Cut Aluminum Plate TTB-0083, am-4158, REV-21-2328, WCP-1069 Hole patterns differ from provided T-Bracket. RSL Mount (KB-25005) 1 Laser-Cut Aluminum Plate Hex Shaft (KB-25013) 1 Cut to length Hex Shaft (made from REV-41-3205) am-2291-3, WCP-0915, TTB-0069 Radio Mount (KB-25014) 1 3D Printed Part Can be 3D Printed 24 Tooth Pulley (KB-25015 1 3D Printed Part Can be 3D Printed or or TTB-0126, WCP-0992, am-4626 48 Tooth Pulley (KB-25016) 1 3D Printed Part Can be 3D Printed 1/8 in. long ½ in. Hex Spacer (KB-25017) 2 TTB-0017-1/8 REV-21-2004-PK10, am-3948-125, WCP-0788 4 in. Compliant Wheels 5 TTB-0057 While other wheels may be used, this wheel was specifically chosen for the way it interacts with the game piece in this design. 130 Tooth 5mm HTD Belt 1 WCP-0652 am-5215_130T, TTB-0195 CIM (8mm Key) to 1/2 in. Hex Adapter 1 WCP-0794 am-0588_long, REV-21-1879, TTB-0044 3D Printed Part ½ in. Hex Adapters 4 WCP-1121 8mm Shaft Push-on Retaining Ring 1 am-0033 TTB-0093 2 in. Premium Black Gaffer’s Tape 10’ am-2944-18 (color does not matter for use case) Any Premium 2 in. Gaffer’s Tape (~48mm width x 3m length) CIM Key Stock 1 am-1121 WCP-0793 1/2 in. Hex Bearings 2 REV-21-1915 TTB-0001, am-2986, WCP-0783 1/2 in. Hex Shaft Collars 2 REV-21-1911 WCP-0799, am-1526_black, TTB-0013 Reclosable Fastener 4’ 3M SJ3540 / 7000051932 Any reclosable fasteners or hook and loop CIM Motor 1 am-0255 WCP 217-2000.
See the game manual for a complete list of legal CIM part numbers.This is in addition to those needed for the drivetrain. Spark MAX motor controllers 1 REV-11-2158 am-4261 This is in addition to those needed for the drivetrain. Robot Signal Light 1 855PB-B12ME522 am-3583 #10-32 1.5 in. long Button Head Cap Screw 8 Required. WCP-0257 M5 ~40mm #10-32 Locknut 10 Required. WCP-0325 M5 Locknut #10-32 1.75 in. long Socket Head Cap Screw 2 Required. WCP-1549 M5 ~40mm #10-32 0.5 in. long Socket Head Cap Screw 2 Required. am-1002 #10-32 1.5 in. long Button Head Cap Screw 58 WCP-0257 M5 ~40mm
Other bolt head styles may be used or Aluminum or Steel 3/16 in. diameter, 0.126 in. - 0.25 in. grip range pop rivets (5mm diameter, 4-6mm grip range).#10-32 Locknut 58 WCP-0325 M5 Locknut if using M5 bolts.
If rivets used, these are not needed.
Poster’s note: This took a lot of reformatting with the tables/merged cells. There are a few table layouts that the forum cannot support, so see the original post for the best formatting.
