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Table of Contents

Tasks

  1. Inventor model (.ipt)
    1. Fusion 360
    2. SolidWorks
    3. 3D Printer
  2. Inventor part prints (.dwg)
    1. PDF booklet
  3. Machine prototype
    1. Modifications
  4. Tolerances
  5. Metal grades
  6. Order of operations
  7. Parts List
  8. Assembly directions
  9. Expected time to complete
  10. Equipment list
  11. Surface treatment
  12. Operating Steam Engine
    1. air
    2. steam
  13. Feedback and Reviews and Testimonials
    1. dreammachiningbc.com
    2. YouTube - Joe Pie
    3. YouTube - mrpete222 Lyle Peterson
    4. YouTube - Blondie Hacks
  14. Pictures
  15. Videos
  16. Wiki page
  17. Pattern making
  18. Sand casting
  19. CNC Machining - G-Codes
  20. Sales and Marketing
    1. CSN
    2. Danny K - Amazon
    3. LittleMachineShop.com
    4. Sherline Products - Precision Benchtop Machines

Boy's Model Steam Engine

Inventor Files

Parts

  1. 00-Assembly-Ethan.iam
  2. 01-UprightStand.ipt
    1. 01-UprightStand.png
  3. 02-PistonCaseAltaA.ipt
    1. 02-PistonCase.png
    2. 02A-PistonCapSetScrew-sw.ipt - McMaster 5/8"-18 Set Screw from Brighton Best Socket Set Screw 5/8-18 Part#603441
  4. 03-PistonHeadAltA-sw.ipt
  5. 04-PistonRodAltA.ipt
  6. 05-EyeNut91705A500_Eye Nut-Style Hangers.ipt
  7. 06-Flywheel-3in.ipt
  8. 07-FloatingPin-Bushing-sw.ipt
  9. 08-CrankCaseBolt-sw.ipt
    1. 08A-WasherFender-sw.ipt - McMaster 1/4" Fender Washer
    2. 08B-JamNut-sw.ipt - McMaster 1/4" Jam Nut
    3. 08C-Spring-sw.ipt - McMaster Compression Spring 3/4" length, inner diameter 5/16"
  10. 09-LockNut (not used)
  11. 10-CrankDiscAltA.ipt
  12. 11-CrankPin
  13. 12-PistonCaseLid (not used)
  14. 13-PostExtension (not used)
  15. 14-Brace.ipt
  16. 15-Spring (not used)
  17. 16-CrankShaft.ipt
  18. 17-PistonCylinderCap (not used)

Simple Little Wobbler Engine

Required Tools (not included)

Parts List

  1. Binding Barrels 10-24, length 1/2“ (McMaster-Carr \$1.10 each)
    1. Aluminum Binding Post from Home Depot
  2. Jam nut 1/4”-20
  3. Nut 1/4“-20
  4. (2) Washers 1/4”
  5. 7/16“ External Retaining Ring
    1. Harbor Freight - External Retaining Rings
    2. Home Depot - Hillman External Retaining Rings
  6. Compression Spring (Everbilt $5.38 Spring Assortment Kit (84-pack) at Home Depot, Harbor Freight $4.50 Assorted Spring set 200 pc, MSC $3.27 for 1/4" spring, ACE Hardward Assorted Springs $10, Lowes \$4.18 Hillman Springs
    1. C-560 5/16” x 3/4“ compression spring from McFadden-Dale Industrial Hardware
      1. 1/4 x1/2 compression spring C-510 does NOT fit #10 bolt, use 5/16” instead
    2. Lee Spring
    3. MW Components
      1. www.centuryspring.com
  • Hardware - Piston Chest Cover
  1. (4) Cap screws
  2. 1mm (0.005“) PTFE roll (ePlastics $2.86 ft
    1. brown paper bag lightly oiled (The Home Machinist forum - Gasket thickness for steam chest & cylinders)
    2. Klinger Thermoseal C-4430
  • Hardware - Compress Air
  1. Clear Vinyl Tubing 3/16 in ID x 5/16 in OD
    1. Home Depot 3/16 in ID x 5/16 in OD x 20 ft clear vinyl tubing \$5.21
  2. 3/16” Hose x 1/4“ Male NPT Brass Hose Barb
    1. Fastenal \$3.14 each
  3. 1/4 in Female Steel Industrial Plug
    1. Harbor Freight - SKU #63548 \$1.39 each
  4. Hose Clamps
    1. Home Depot 1/4 in to 3/8 in Hose Clamps \$7.69 for 12
  5. Aluminum Tubing - 3/16”
    1. Amazon - K & S Round Aluminum Tube 3/16" OD, 12" long \$2.69
    2. K&S 3403 Round Aluminum Telescopic Tubing \$6.58
    3. Lowes - Hillman 3/16-in x 6-in Aluminum round tube \$2.78

06-Flywheel

7/16 Hole

Custom Mandrel

Mandrel - Inside Grip or Expanding or Arbors

01-Frame - Upright Stand

Frame Design

  • Clearance Hole
    • hole should be 1/32“ larger diameter than bolt used

Frame Materials

03-Piston Head

03-Piston Case

03-Crank Disc and Pin

04-Cylinder

  • 3/4“ aluminum square
  • Bore is off-center

04-PistonRod

1/4-inch threaded rod

05-Connecting Rod

Corner Rounding End Mill

06-Air Port Pipe

08-Crank Case Bolt - Threaded Rod

Extension

Jam Nut

Lock Nut

Cut Threaded Rod and Studs

16-CrankShaft

Material

  • Option 1 - Aluminum Round - 1/2“ diameter
    • concern the set screw will easily mar and create burrs in the workpiece
  • Option 2 - Hot or Cold Drawn Rounds
    • 7/16” diameter would be ideal, but wonder if turning to remove the outer scaling will make the diameter to small
      • Hot-rolled $12 for 20-ft length
      • Cold-rolled (1018) $17 for 20-ft length
    • 1/2“ diameter
      • Hot-rolled $13.50 for 20-ft length
      • Cold-rolled (1018) $22.50 for 20-ft length

Grooving Tool

17-PistonCylinderCap

  • 5/8”-18 UNF length 1/2“ UNF set screw

Bottom Tap

Set Screw

08-Brace

  • 1/2“ x 0.065 x 20' Hot Rolled Tubing-Round (ASTM A513) \$15
  • flatten both ends of tub
  • drill hole
  • bend at 45deg
  • mount to side of upright stand
  • mount to wooden plate

Materials

Engine Balance

Furnace

  • Pressure Cooker
    • Ade Swash - Model Engineer, swashade@gmail.com

Equipment

Machines

Vertical Mill

Max Novo Machines

DRO

Vendors

  • Titan Metals
  • Curtis Steel
  • K&S Precision Metals
    • Rods, Tubing and Flat Bars
    • Material: Aluminum, Brass, Copper, Stainless Steel
  • MSC

Machining Equipment - Guy

Lathe

  • Lathe

Mill

  • Mill
  • Mill DRO
  • Phase Convertor

Shop Fox

  • Shop Fox

Quick Change Tool Post Set

  • Grizzly G5689 \$380
    • AXA 250-101 (AXA) Tool Holder (1/2” shank size)
      • Note BXA is 250-201 (5/8“ shank size) and CXA is 250-301 (3/4” shank size)

Autodesk Inventor Setup

Content Center

  • Location of Libraries - C:\ProgramData\Autodesk\Inventor 2023\Content Center\Libraries
  • Folder Options - C:\Users\JeffJourneyJensen\Documents\Inventor\Content Center Files\R2023\ (nothing in the folder)

References

Tubalcain Part 1 of 3

Tubalcain Part 2 of 3

Tubalcain Part 3 of 3

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