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Goals for 2/20 Week

Fabrication:

1) Pins

  • Pick up TR and weld– Monday
  • Sand down to size- after bushings freeze fit so we know final diameter

2) Main Linkage

  • Drill and bore holes to diameter- Monday
  • Machine down cylinder attachment-  when we find how to fix jig bore or mill. If we do not find solution, I will fly-cut by hand week of 2/27
  • Freeze fit bushings- Put bushings in freezer Monday, freeze fit when done machining.
  • Sand down-Monday, after holes bored.

3) Vertical Linkages

  • Cut to size– Monday
  • Drill and bore holes- Tuesday
  • Tap grease fittings– Tuesday
  • Freeze fit bushings-Tuesday
  • Sand down- Wednesday

4) Punch Table:

  • Torch, Grind- Wednesday
  • Drill, mill mounting holes- Wednesday
  • Fab die holder, weld in place.- Wednesday

5) Main Linkage Holder

  • Dig out materials-before Thursday
  • Torch, grind- Thursday
  • Bore Holes, or drill smaller holes- Thursday
  • Tap mounting holes for table- Thursday

6) Main Pin Holder

  • Torch, grind- Thursday
  • Bore Holes, or drill smaller holes-Thursday
  • Freeze fit bushings- Thursday
  • Sand down- friday or sunday

Non Fabrication

1) Update the Upper and lower arms to have the correct blade size– Monday

2) Order Upper and lower arms- Wednesday. Depends on how soon Emmanuel can draw parts

3) Update frame hole locations- Wednesday

4) Order from Surplus Center– Wednesday

5) Order bolts- Thursday

Goals for 2/13 week

Goals:

Fabrication work: 

1) Finish 2.5″ Pins

  • Grind in grease channels: Monday 2/13
  • Weld Washers/make washers (2/14): Monday- changed. will weld washers when assembling machine, as the pins may need to be sanded down a bit to fit better in bushings.
  • Order TR: Monday. Should either receive then at Ababa Bolt, or a few days later from Grainger, depending on price.  2/13
  • Weld and grind TR: as soon as TR is received.
  • Install Grease fitting: on final machine installation

2) Prepare bushings

  • Order monday or tuesday  2/13
  • Research cost of hardening, find place to do it: 2/14 Will do it at Certified Metal Craft for $85
  • Machine to Size: when received- 2/14
  • Take to be hardened: after machined- 2/15

3) Vertical Linkages

  • Purchase Materials: Tuesday Not done yet, to be completed wednesday. 2/15 will receive fri or mon,
  • Torch, Grind: Thursday
  • Bore big holes: Thursday
  • Drill 3/4″ hole: Thursday
  • Drill and tap grease fitting holes: Thursday
  • To be finished once I receive hardened bushings. They will be “freeze fit” into place, possibly both at once to insure fit. After this, rubbing surface will be surfaced. Grease fittings to be installed in place.

4) Main Linkage

  • Purchase Materials: Tuesday– Not done yet, to be completed wednesday. 2/15
  • Torch, grind: Friday- Note: Reliance Steel said they can torch to size at no additional cost, so they will do the torching, I just have to make the specs and send them. 2/14
  • Bore holes: Friday
  • To be finished once I receive hardened bushings. They will be “freeze fit” into place, possibly both at once to insure fit. After this, rubbing surface will be surfaced.
Non-fab work:
1) Model upper arm for half-moons
2) Do calc’s and post to prove:
  • Main Pin supports thickness
  • capability to shear angle 2/13
  • size of vertical supports

If I finish all these, or materials take a long time to arrive:

1) Main Linkage Holder

  • Materials from Enniss
  • Torch, grind
  • Bore Holes, or drill smaller holes
  • Tap mounting holes for table
  • To be finished once I receive hardened bushings. They will be “freeze fit” into place, possibly both at once to insure fit. After this, rubbing surface will be surfaced.

2) Main Pin Holder

  • Materials from Enniss
  • Torch, grind
  • Bore Holes, or drill smaller holes.
  • To be finished once I receive hardened bushings. They will be “freeze fit” into place, possibly both at once to insure fit. After this, rubbing surface will be surfaced.

3) Punch Table:

  • Materials from Enniss
  • Torch, Grind
  • Drill, mill mounting holes
  • Fab die holder, weld in place.

Ironworker goals

My main goal this week is to finish the sketchup model of the Ironworker. This should be done by friday, and then I will blog my model, along with the calculations for it, on OSE for other engineers to double check my calculations. After this, I will generate a BOM and finish the remainder of the proposal. This will be done by the following friday, 2/3. As soon as my proposal is approved, I will order materials and begin building ASAP.

I will be checking off these goals as I complete them, with a date.

For this week, here is what still needs to be modeled and figured out:

  • Punch assy, including stripper and die holder
  • Vertical linkages ( 1/24 ) and main linkage 
  • Main Pin holder –   1/24
  • Find necessary extra length of arm for optional coper-notcher attachment –  1/23
  • Upper arm
  • lower arm
  • angle shear mechanism 
  • base
  • dovetail locking system for punch
  • Pins
  • Hold down device- angle  and flat
  • Backstop –  1/24
  • valve mounts
For many of these, I will include scaling calculations for thicknesses and pins.

Where I may run into difficulties:

  • Motion analysis- I may need help insuring the machine gets the full range of motion. This will involve length of vertical linkages, and hole placements for main linkage pin and cylinder pin.
  • Punch assy- need to re-develop OSE concept for different dies.  Difficulty will be in attaching the guide so it still allows the same or more clearance as was in the original prototype
  • Pins- need to find best method of making pins which allows for greasing and still pulls together pieces
  • Angle shear- it will be hard to figure a way to make this easily replicable
  • Making the base- haven’t even thought about it
  • hold down device- havent thought about it.