Difference between revisions of "RC08Chassis"

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This is the skeleton of the robots everything attaches to it.
+
As part of the [[RoboCupMechanical|RoboCup 2008 Mechanical]], this is the skeleton of the robots everything attaches to it.
  
 
==Assembly Structure==
 
==Assembly Structure==
−
====Parts List====
+
===Parts List===
 
# 2 - Drive Module (RC-2008-03-00)
 
# 2 - Drive Module (RC-2008-03-00)
 
# 2 - Drive Module Mirror (RC-2008-03-00-M)
 
# 2 - Drive Module Mirror (RC-2008-03-00-M)
Line 13: Line 13:
 
# 8 - 8-32 3/8"Long (RC-2008-03-13)
 
# 8 - 8-32 3/8"Long (RC-2008-03-13)
 
# 8 - 8-32 Nylon Lock Nuts (RC-2008-07-05)
 
# 8 - 8-32 Nylon Lock Nuts (RC-2008-07-05)
−
# 1 - Electrical Board (RC-2008-07-06)
+
# 1 - Electrical Board (RC-2008-09-01)
 +
# 1 - Kicker Board (RC-2008-09-02)
 +
# 2 - Antenna Board (RC-2008-09-03)
 +
# 1 - Ball Sensor Unit (RC-2008-10-00)
 +
#  (RC-2008-07-06)
 +
#  (RC-2008-07-07)
 +
#  (RC-2008-07-08)
 +
#  (RC-2008-07-09)
 +
#  (RC-2008-07-10)
 +
 
 +
===Configuration Notes===
 +
# Due to space constraints drive modules are not orthogonal. They are X degrees off inward. (See drawings)
  
 
==Parts & Components==
 
==Parts & Components==
−
====Stock====
+
===Stock===
 
=====Top Plates=====
 
=====Top Plates=====
 
:Vendor - McMaster-Carr
 
:Vendor - McMaster-Carr
Line 25: Line 36:
 
=====Bottom Plate=====
 
=====Bottom Plate=====
 
:Vendor - McMaster-Carr
 
:Vendor - McMaster-Carr
−
:Part No. - 8885K25
+
:Part No. - 8885K18
−
:Cost - $55.42 Each
+
:Cost - $35.62 Each
−
:Description - Alloy 7075 Aluminum Sheet .050" Thick, 24" X 24"
+
:Description - Alloy 7075 Aluminum Sheet .050" Thick, 12" X 24"
 +
 
 +
=====Antenna Supporting Plate=====
 +
:Vendor - McMaster-Carr
 +
:Part No. - 8574K38
 +
:Cost - $6.29 Each
 +
:Description - Polycarbonate Sheet 1/16" Thick, 12" X 24", Clear
  
−
====Fasteners====
+
===Fasteners===
 
=====6-32 Low Head Socket Cap Screw=====
 
=====6-32 Low Head Socket Cap Screw=====
 
:Vendor - McMaster-Carr
 
:Vendor - McMaster-Carr
Line 48: Line 65:
 
:Description - Grade 2 Hex Thin (Jam) Nylon-Insert Locknut Zinc-Pltd Steel, 8-32 Screw Size, 11/32" W, 11/64" H
 
:Description - Grade 2 Hex Thin (Jam) Nylon-Insert Locknut Zinc-Pltd Steel, 8-32 Screw Size, 11/32" W, 11/64" H
  
−
====Other====
+
===Other===
−
=====1/4" Hex Standoff=====
+
=====1/4" Hex Standoff 2.5"=====
 
:Vendor - DigiKey
 
:Vendor - DigiKey
 
:Part No. - 1825K-ND
 
:Part No. - 1825K-ND
 
:Cost -  $1.14 Each (must order min 10)
 
:Cost -  $1.14 Each (must order min 10)
 
:Description - STANDOFF HEX 6-32THR 2.5"L ALUM
 
:Description - STANDOFF HEX 6-32THR 2.5"L ALUM
 +
 +
=====1/4" Hex Standoff 0.25"=====
 +
:Vendor - DigiKey
 +
:Part No. - 8717K-ND
 +
:Cost -  $0.394 Each (must order min 10)
 +
:Description - STANDOFF HEX M/F 6-32 .250" ALUM
 +
 +
=====1/4" Hex Standoff 0.25"=====
 +
:Vendor - DigiKey
 +
:Part No. - 2208K-ND
 +
:Cost -  $0.307 Each (must order min 10)
 +
:Description - STANDOFF HEX 6-32THR .250" ALUM
 +
 +
=====1/4" Hex Standoff 0.75"=====
 +
:Vendor - DigiKey
 +
:Part No. - 8416K-ND
 +
:Cost - $0.471 Each (must order min 10)
 +
:Description - STANDOFF HEX 6-32 0.75"L ALUM MALE FEMALE
 +
 +
=====1/4" Hex Standoff 1.25"=====
 +
:Vendor - DigiKey
 +
:Part No. - 1818K-ND
 +
:Cost -  $0.776 Each (must order min 10)
 +
:Description - STANDOFF HEX 6-32THR 1.25"L ALUM
 +
 +
=====6-32 Low Head Socket Cap Screw=====
 +
:Vendor - McMaster-Carr
 +
:Part No. - 92220A144
 +
:Cost -  $8.75 (Packs of 25)
 +
:Description - Alloy Steel Low Head Socket Cap Screw 6-32 Thread, 5/8" Length
 +
 +
===Shell===
 +
:Vendor - McMaster-Carr
 +
:Part No. - 91780A209
 +
:Cost -  $0.44
 +
:Description - Aluminum Female Threaded Hex Standoff 1/4" Hex, 7/8" Length, 6-32 Screw Size
 +
 +
:Vendor - McMaster-Carr
 +
:Part No. - 91780A339
 +
:Cost -  $0.93
 +
:Description - Aluminum Female Threaded Hex Standoff 1/4" Hex, 2" Length, 6-32 Screw Size
 +
 +
:Vendor - McMaster-Carr
 +
:Part No. - 91565A315
 +
:Cost -  %6.58 (Pack of 100)
 +
:Description - Plain Steel Fully Threaded Stud 6-32 Thread, 1/2" Length
 +
 +
 +
 +
===Action Log===
 +
# 01/03/2008 - Bottom plate prototype completed.
 +
# 02/15/2008 - Top plate prototype completed.
 +
# 03/18/2008 - Ground clearance concerns have prompted investigating into correcting.
 +
#: Notes - Possible fixes, larger omni wheels, moving wheels down.
 +
# 03/30/2008 - Moving wheels down has been selected for fixing ground clearance.
 +
# 04/08/2008 - Standoffs for the electrical boards up to the shell have been found and overall height for the robot has been finalized.
 +
# 04/10/2008 - We have decided to go with pressing for creating space for output gears on the bottom plate. This allows us to move the wheels down for additional ground clearance.
 +
# 04/10/2008 - Cutouts for motor wires need to be moved in some to allow for more slack and connection with electrical board.
 +
# 04/15/2008 - Die for stamping bottom plate gear allowances has been made and the process produces successful results.
 +
# 04/22/2008 - Bigger cutouts for drive motor cabling, addition of antenna support plate, standoff change.
 +
# 05/15/2008 - Standoffs changed and selected.
 +
# 05/17/2008 - Mostly complete ball sensor integration accomplished.
 +
# 05/21/2008 - DXF's for waterjetting all plates have been made and sent out for quote.
 +
 +
[[Category: RC Mechanical]]
 +
[[Category:2007-2008]]

Latest revision as of 19:50, 24 May 2020

As part of the RoboCup 2008 Mechanical, this is the skeleton of the robots everything attaches to it.

Assembly Structure

Parts List

  1. 2 - Drive Module (RC-2008-03-00)
  2. 2 - Drive Module Mirror (RC-2008-03-00-M)
  3. 1 - Dribbler (RC-2008-04-00)
  4. 1 - Kicker / Chipper (RC-2008-05-00)
  5. 1 - Bottom Plate (RC-2008-07-01)
  6. 1 - Electrical Plate (RC-2008-07-03)
  7. 4 - 2 1/2" Long Hex Standoffs (RC-2008-07-02)
  8. 10 - 6-32 1/4" Long (RC-2008-07-04)
  9. 8 - 8-32 3/8"Long (RC-2008-03-13)
  10. 8 - 8-32 Nylon Lock Nuts (RC-2008-07-05)
  11. 1 - Electrical Board (RC-2008-09-01)
  12. 1 - Kicker Board (RC-2008-09-02)
  13. 2 - Antenna Board (RC-2008-09-03)
  14. 1 - Ball Sensor Unit (RC-2008-10-00)
  15. (RC-2008-07-06)
  16. (RC-2008-07-07)
  17. (RC-2008-07-08)
  18. (RC-2008-07-09)
  19. (RC-2008-07-10)

Configuration Notes

  1. Due to space constraints drive modules are not orthogonal. They are X degrees off inward. (See drawings)

Parts & Components

Stock

Top Plates
Vendor - McMaster-Carr
Part No. - 89015K39
Cost - $43.33 Each
Description - Alloy 6061 Aluminum Sheet .063" Thick, 24" X 24"
Bottom Plate
Vendor - McMaster-Carr
Part No. - 8885K18
Cost - $35.62 Each
Description - Alloy 7075 Aluminum Sheet .050" Thick, 12" X 24"
Antenna Supporting Plate
Vendor - McMaster-Carr
Part No. - 8574K38
Cost - $6.29 Each
Description - Polycarbonate Sheet 1/16" Thick, 12" X 24", Clear

Fasteners

6-32 Low Head Socket Cap Screw
Vendor - McMaster-Carr
Part No. - 92220A141
Cost - $7.42 (Packs of 25)
Description - Alloy Steel Low Head Socket Cap Screw 6-32 Thread, 1/4" Length
8-32 Low Head Socket Cap Screw
Vendor - McMaster-Carr
Part No. - 92220A152
Cost - $11.60 (Packs of 100)
Description - Alloy Steel Low Head Socket Cap Screw 8-32 Thread, 3/8" Length
8-32 Nylon Lock Nut
Vendor - McMaster-Carr
Part No. - 90633A009
Cost - $2.21 (Packs of 100)
Description - Grade 2 Hex Thin (Jam) Nylon-Insert Locknut Zinc-Pltd Steel, 8-32 Screw Size, 11/32" W, 11/64" H

Other

1/4" Hex Standoff 2.5"
Vendor - DigiKey
Part No. - 1825K-ND
Cost - $1.14 Each (must order min 10)
Description - STANDOFF HEX 6-32THR 2.5"L ALUM
1/4" Hex Standoff 0.25"
Vendor - DigiKey
Part No. - 8717K-ND
Cost - $0.394 Each (must order min 10)
Description - STANDOFF HEX M/F 6-32 .250" ALUM
1/4" Hex Standoff 0.25"
Vendor - DigiKey
Part No. - 2208K-ND
Cost - $0.307 Each (must order min 10)
Description - STANDOFF HEX 6-32THR .250" ALUM
1/4" Hex Standoff 0.75"
Vendor - DigiKey
Part No. - 8416K-ND
Cost - $0.471 Each (must order min 10)
Description - STANDOFF HEX 6-32 0.75"L ALUM MALE FEMALE
1/4" Hex Standoff 1.25"
Vendor - DigiKey
Part No. - 1818K-ND
Cost - $0.776 Each (must order min 10)
Description - STANDOFF HEX 6-32THR 1.25"L ALUM
6-32 Low Head Socket Cap Screw
Vendor - McMaster-Carr
Part No. - 92220A144
Cost - $8.75 (Packs of 25)
Description - Alloy Steel Low Head Socket Cap Screw 6-32 Thread, 5/8" Length

Shell

Vendor - McMaster-Carr
Part No. - 91780A209
Cost - $0.44
Description - Aluminum Female Threaded Hex Standoff 1/4" Hex, 7/8" Length, 6-32 Screw Size
Vendor - McMaster-Carr
Part No. - 91780A339
Cost - $0.93
Description - Aluminum Female Threaded Hex Standoff 1/4" Hex, 2" Length, 6-32 Screw Size
Vendor - McMaster-Carr
Part No. - 91565A315
Cost - %6.58 (Pack of 100)
Description - Plain Steel Fully Threaded Stud 6-32 Thread, 1/2" Length


Action Log

  1. 01/03/2008 - Bottom plate prototype completed.
  2. 02/15/2008 - Top plate prototype completed.
  3. 03/18/2008 - Ground clearance concerns have prompted investigating into correcting.
    Notes - Possible fixes, larger omni wheels, moving wheels down.
  4. 03/30/2008 - Moving wheels down has been selected for fixing ground clearance.
  5. 04/08/2008 - Standoffs for the electrical boards up to the shell have been found and overall height for the robot has been finalized.
  6. 04/10/2008 - We have decided to go with pressing for creating space for output gears on the bottom plate. This allows us to move the wheels down for additional ground clearance.
  7. 04/10/2008 - Cutouts for motor wires need to be moved in some to allow for more slack and connection with electrical board.
  8. 04/15/2008 - Die for stamping bottom plate gear allowances has been made and the process produces successful results.
  9. 04/22/2008 - Bigger cutouts for drive motor cabling, addition of antenna support plate, standoff change.
  10. 05/15/2008 - Standoffs changed and selected.
  11. 05/17/2008 - Mostly complete ball sensor integration accomplished.
  12. 05/21/2008 - DXF's for waterjetting all plates have been made and sent out for quote.
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