Author Topic: Bill Of Materials (BOM)  (Read 522 times)

Louis L

  • Administrator
  • Sr. Member
  • *****
  • Posts: 344
Bill Of Materials (BOM)
« on: February 13, 2017, 05:30:43 PM »
Hardware team - please start creating a BOM. Enter the data in the correct section below. For each item, enter the description and the amount. When the actual BOM is made, there will also be cost associated with each but that'll be entered later. Not everything needs to be itemized in the final BOM but for now let's just collect the information and we can filter stuff out later. No need to enter small stuff like nuts and bolts.

Raw cost of aluminum based on Sullivan Metal 1/19/17 receipt:

6 inch wide, 1/4 inch thick stock. $64.87 for 12 feet or 864 sq in. => $0.07508 / sq in
4 inch wide, 1/8 inch thick stock. $50.62 for 24 feet or 1152 sq in. => $0.04394 / sq in
1/2 x 1/2 x 1/16 angle aluminum stock (Lowes). $2.18 for 3 ft => $0.73 per linear foot
3/4 x 3/4 x 1/8 angle aluminum stock. $0.72 / linear foot
1 x 1 x 1/8 angle aluminum stock. $24.47 for 25 feet => $0.9788 / linear foot
2 x 2 x 1/8 angle stock. $148.41 for 60 feet => $2.4735 / linear foot

Raw cost for other sheeting:
3/32 lexan (Lowes) $33.48 per 5.8 sq ft = $5.77 / sq ft
3/16 polycarb (street price apprx) $10 / sq ft
1/2 LDPE (US Plastics, street price) $97.76 per 8 sq ft = $12.22 / sq ft
1/4 HDPE (inventables) $5 per sq ft


Chassis:
30 feet of 2 x 2 x 1/8 aluminum angle stock  ($2.4735 / foot = $74.21)
4 AM-3009 swerve drive modules  ($325 each = $1300)
4 AM-3308 40 tooth absolute encoder gearbox   ($9 each = $36)
4 AM-2899 absolute encoder with cable  ($45 each = $180)
4 Ruland 1/2 inch shaft collars    ($8.43 each = $33.72)
12 inches of 2 inch PVC ($5.75/5ft = $1.15)
1 square feet of 1/8 aluminum sheet stock  ($0.04394 / sq in = $6.33)

Intake:
1 Andymark PG27 gearmotor     ($69 each)
2 square feet sheet metal    ($9.99/2sqft = $9.99)
17.5 inches of 1/2 x 1/2 x 1/8 steel angle ($1.80 / ft = $2.70)
22 square inches of 1/8 in aluminum   ($0.04394 / sq in = $0.97)
24 square inches of 1/2 inch thick LDPE ($12.22 / sq ft = $2.04)
21 inches of AM-2392 3/8 inch diameter high carbon keyed shaft   ($36/30 inch = $25.20)
18 inches of 1 in diameter PVC pipe  ($5.75/5ft = $1.73)
2 AM-2881 Banebot P60 3/8 inch bearing blocks   ($10.00 each = $20.00)
522 square inches of the black mat/foam ($7)
1 AM-2182 sprocket ($11)
2 feet AM-0370 #25 chain   ($25/10ft = $5.00)
1 AM-0236 sprocket ($13)
1 AM-0985A 10mm Key Hub ($11)
10 feet VHB Tape (KOP)

Gear Mechanism:
4 HiTec HS-5685MH servo   ($39.99 each)
7 square feet of 3/16 lexan  ($10 / sq ft = $70)
10 inches of 1 x 1 x 1/8 aluminum   ($0.9788 / foot = $0.81)
12 inches of 2 x 2 x 1/8 aluminum   ($2.4735 / foot = $2.47)
51 square inches of 1/8 aluminum  ($0.04394 / sq in = $2.24)
2 hinges   ($4.69/pair = $4.69)
6 inches of 1/2 x 1/2 x 1/16 inch aluminum angle ($0.73 / ft = $0.36)

Climber:
1 Banebot P80S-444-14 64:1 gearbox    ($138.25)
1 MiniCIM motor    (KOP)
1 linear feet of 2 x 2 x 1/8 angle aluminum      ($2.4735 / foot = $2.47)
8 linear inches 1 x 1 x 1/8 angle aluminum       ($0.9788 / foot = $0.65)
72 square inches of 1/8 aluminum stock         ($0.04394 / sq in = $3.16)
22 square inches of 1/4 aluminum stock      ($0.07508 / sq in = $1.62)
3 inches of 3/4 inch wide x 1/8 steel stock ($50/sq ft = $0.80)
1 Banebot PB-S5002-BB 1/2 inch P80 bearing block     ($12.50)
2 Ruland 1/2inch shaft collars     ($8.43 each = $16.86)
2 springs      ($1.50 each = $3)
54 square inches of 1/2 inch LDPE ($12.22 / sq ft = $4.58)
50 square inches of 3/16 inch thick polycarbonate  ($10/sq ft = $3.47)
2 ft of Velcro, hook side ($7.19 / 5 yds = $0.96)
4 inch keyed 1/2 inch shaft ($33/30 inches = $4.40)
6" of 1/4" steel shaft ($5/3 ft = $0.83)
4 1/4" shaft collars ($1.02 each = $4.08)
2 square inches of 1/4" HDPE ($5 / sq ft = $0.07)
24 square inches of 3/32 lexan for signal light mount ($5.77 sq ft = $0.96)
1 limit switch (FIRST Choice)

Rope
10 feet of nylon strapping ($1.99 / yd = $6.63)
20 inches of velcro ($6.99/yd = $4.66)


Hopper:
4 square feet of 3/16 thick polycarbonate ($10/sq ft = $40)
6 square feet of 3/32 thick polycarbonate ($5.77/ sq ft = $34.62)
1 square feet of 1/4 inch thick HDPE ($5)
3 square feet of teflon oven liner.  Amazon.  ($10)
4 feet CS Hyde 2 inch wide PTFE Coated Fiberglass    ($18/5 yard roll = $4.80)
2 inches of 1/2" LDPE ($12.22 / sq ft = $0.17)
25 square inches of 1/4" flat aluminum stock  ($0.07508 / sq in = $1.88)
7 linear feet of 1 x 1 x 1/8 aluminum angle   ($0.9788 / foot = $6.85)
100 square inches of 1/8 thick aluminum plate  ($0.04394 / sq in = $4.39)
4 linear feet of 3/4 x 3/4 x 1/8 aluminum angle ($0.72 / foot = $2.88)
3 linear feet of 2 x 2 x 1/8 aluminum angle   ($2.4735 / foot = $7.42)
1 AM-2971 RS775 with PG71 motor    ($89)
4 limit switch  (FIRST Choice)
4 hinges    ($4.69/pair = $9.38)
2 1/4" bronze bushings ($5 each = $10)
1 HiTec HS-5685MH servo   ($39.99 each)

Camera:
1 MS HD3000 camera  ($30)
1 HiTec HD322 servo  (FIRST Choice 2014)
6 in of VHB Tape    (KOP)
4 in of 2 x 2 x 1/8 aluminum angle   ($2.4735 / foot = $0.66)


Electrical Components:
1 Pixy camera     ($75 each)
2 HC-SR04 Sparkfun ultrasonic sensor   ($4 each)
1 robot light     (KOP)
1 network router   (KOP)
1 power distribution panel     (KOP)
1 voltage regulator module    (KOP)
1 roboRIO        (KOP)
8 Talon SRX      ($90 each)
1 Victor SP    ($60 each)
1 Talon SR     ($65 each)
2 Spark    (KOP)
2 square feet 1/2 inch LDPE ($12.22 / sq ft = $24.44)
2 linear feet 2 x 2 x 1/8 aluminum angle ($2.4735 / ft = $4.95)
1 rev robotics servo power module   ($40)
1 battery connector (KOP)
1 main breaker  (KOP)
5 40A breakers    (KOP)
6 30A breakers    (KOP)
11 3x2 EuroConnectors ($2 each = $22)
10 1 ft PWM cables   ($2.75 each)
10 2 ft PWM cables   ($3.25 each)
4 3 ft PWM cables     ($3.75 each)
3 feet of 6 gauge wire (KOP)
20 feet 12 gauge wire ($1.19 ft = $23.80)
20 feet 14 gauge wire (KOP)
12 feet 18 gauge wire    (KOP)
3 feet of CAN bus wire (KOP)

Bumpers:
1 sheet of 3/4 inch thick plywood ($20)
4 pool noodles ($2.50 each = $10)
1.5 yds red fabric ($11.75/yd = $17.63)
1.5 yds blue fabric ($11.75/yd = $17.63)
4 yds of 3/4 inch velcro ($6.99/yd = $27.96)
54 inches of 2 x 2 x 1/8 aluminum angle  ($2.4735 / ft = $11.13)
8 right angle brackets ($3 each = $24)
4 threaded 1/4x20 knobs ($3.69 each = $14.76)


Reply to this thread with your parts that reflect the area you worked on. I will update the above info and hopefully we'll have a full BOM pretty quickly.
« Last Edit: March 07, 2017, 02:24:08 PM by Louis L »

Zach G

  • Newbie
  • *
  • Posts: 33
Re: Bill Of Materials (BOM)
« Reply #1 on: February 17, 2017, 06:35:47 PM »
Intake
205 square inches of sheet metal.
17.5 ins of steel "L" bracket  size -- 1/2in
22 square inches of 1/8 in aluminum metal
24 square inches of LD poly ethylene
21 ins of a 3/8 in diameter aluminum shaft
18 ins of 1 in diameter PVC pipe
Two 3/8 in bearing blocks
522 square inches of the black mat/foam that Stephen bought
1 am- 2182 sprocket
am-0370 chain ~~2 ft
1 am-0236 sprocket

Added 2/20/17

10mm Key Hub (am-0985a)
VHB Tape  3ft

« Last Edit: February 20, 2017, 07:18:31 AM by Zach G »

Zach G

  • Newbie
  • *
  • Posts: 33
Re: Bill Of Materials (BOM)
« Reply #2 on: February 20, 2017, 07:24:17 AM »
Camera mount
One Servo
One Microsoft USB camera
6 in of VHB Tape
4 in of 2 by 2 aluminum "L" bracket

Ed B

  • Newbie
  • *
  • Posts: 14
Re: Bill Of Materials (BOM)
« Reply #3 on: February 24, 2017, 11:22:45 AM »
Some comments/input...

General:
Listings of 2x2 aluminum, 1x1 aluminum, 3/4x3/4 aluminum, aluminum L bracket, etc are listed in metal stock lists as aluminum angle.  All of ours are .125 thick except for some small limit switch mounts, which are 0.050" thick.

All shafts on the robot are high carbon steel keyed shaft.

Chassis:

"2x2 aluminum stock" should read 2x2x.125 angle
There are added absolute encoders on the swerve units along with the coupling gears and shaft collars that go with them.

Intake (From Zach's post):

"L" bracket should read 1/2 x 1/2 x 1/8 steel angle
The LDPE is 1/2" thick
The intake shaft is high carbon steel keyed shaft from AndyMark
The bearing blocks are BaneBots P60 blocks.
The chain is #25 chain
Add the VHB tape used to secure the foam.  Probably about 8 to 10 feet total.

Climber:
The 1x1 and 2x2 are .125" angle. This may change.
The bearing is a BaneBots p80 bearing block
The steel stock will be gone except for the 2 to 4 square inches used for the ratchet pawl.
Add about 4" of keyed 1/2" shaft
Add velcro hook
The rest is close enough.  We can update with the final design.
The springs run $1.00 to $1.50 at Ace

Rope:
6 feet of 3 strand 1/4" twisted nylon rope
Velcro loop, probably a few feet woven in with the rope strands
probably some nylon twine for whipping and securing the velcro

Hopper:
The slippery sheeting is teflon oven liner.  About $10 worth from Amazon. This is attached with CS Hyde 2 inch wide PTFE Coated Fiberglass with Silicone Adhesive, about 4 feet total at $18 for a 5 yard roll.
There are 4 limit switches including two spares in case we add a second motor.
The pushing struts are 1/4" flat aluminum stock totaling about 25 square inches
Add two 1/4" bronze bushings
Add HiTec HS-5685MH servo and about 2 inches of 1/2" x 1/2" LDPE for the link to the launching flap
The only PE on the hopper is about 1 square foot at the top of the pusher, and it is 1/4" HDPE
The 3/4x3/4 and 1x1 aluminum listed is .125 thick angle
Other aluminum and plastic is close enough

Zach's camera mount listing:
2 by 2 aluminum is 2x2x.125 angle

Electrical:

Don't forget the encoder cables for the absolute and PG71 motor encoders.
Power cable for the router
2 sparks as I recall
LDPE is 1/2" thick
nylon strap for battery

Louis L

  • Administrator
  • Sr. Member
  • *****
  • Posts: 344
Re: Bill Of Materials (BOM)
« Reply #4 on: February 24, 2017, 10:38:15 PM »
I've updated the OP with Zach and Ed's comments.

Jameel G

  • Guest
Re: Bill Of Materials (BOM)
« Reply #5 on: March 01, 2017, 08:27:24 PM »
Stuff to add to BOM:
-Gear Pusher Mechanism (15 square inches of 1/8 inch aluminum sheet, 6 inches of 1/2 x 1/2 1/16 inch aluminum angle brackets)
-Robot signal light

*Could not really identify the parts of the robot under bag and tag so I verified parts with sub team leaders and sent an email to Drew to look over BOM for electrical
« Last Edit: March 01, 2017, 08:30:44 PM by Jameel G »

Louis L

  • Administrator
  • Sr. Member
  • *****
  • Posts: 344
Re: Bill Of Materials (BOM)
« Reply #6 on: March 02, 2017, 12:04:31 AM »
I've updated the OP with Jameel's comments.

Jameel G

  • Guest
Re: Bill Of Materials (BOM)
« Reply #7 on: March 02, 2017, 08:22:33 PM »
We also need to add 1 VRM (Voltage Regulator Module) under the Electrical list.
All sub team leaders have verified all their sections. I believe the BOM should be good.

Louis L

  • Administrator
  • Sr. Member
  • *****
  • Posts: 344
Re: Bill Of Materials (BOM)
« Reply #8 on: March 04, 2017, 09:25:21 AM »
I've updated the OP with Jameel's comment

Jameel G

  • Guest
Re: Bill Of Materials (BOM)
« Reply #9 on: March 04, 2017, 02:11:01 PM »
The only thing that needs to be added for the new climber is one limit switch. I consulted with Arun and Anthony.

Louis L

  • Administrator
  • Sr. Member
  • *****
  • Posts: 344
Re: Bill Of Materials (BOM)
« Reply #10 on: March 06, 2017, 03:49:27 PM »
I've updated the OP with Jameels' comment