Wednesday, October 10, 2012

Lesson 8: Connections


Lesson 8: Connections
Connections for hollow constructions can be simple or very complex. Because of the steps of construction, you need to have a blueprint for your connections as you start fabrication since many connections need to be set up or fabricated in between hollow construction steps.

T-Bar or Ball/Socket links:
Both the T-bar and and Ball/Socket links function the same way. The crossbar of the T or ball sits inside the hollow construction. The other side can either be a fixed link soldered onto the form or the same (sitting inside for movement)
  • Create your hollow forms but leave them open.
  • Create the links- only put T or ball on one side.
  • Drill hole in your form where the connection point is and slide link through hole.
  • Solder that form closed. Hold the part of the link outside the form in a third hand to prevent from dropping into the form.
    • When doing this you do not need an additional air hole.
  • If fixed on other side:
    • Close second form- placing the air hole where the connection point will be is will allow you to hide the hole under the link.
    • Solder link to second form (over air hole if applicable)
  • If moveable:
    • Drill hole for connection in second form.
    • Feed link through hole.
    • Solder second T or ball onto the end of the link inside the form.
    • Solder the form closed.

Jump Rings:
  • Close your forms.
  • Solder half jump rings to the form where you want your connections.
  • Finish the forms to final finish (minus patina).
  • Link the forms together and solder the final ring.

Tube Hinges:
Tube hinges work best for longer hinges.
  • Close forms.
  • Solder knuckles on to forms.
  • Solder knuckles to one side, then measure and mark the other side. Cut the tubing a little longer than you need so you can file down for a perfect fit.
  • Ball one end of the hinge pin and feed through.
  • Set the other end.
  • For tricky and inset hinges, chasing tools work well to reach into tight areas.

Sheet/Rod hinges:
These types of hinges can work very well for hollow forms and for small hinges.
  • Take a sheet and fold into a U.
    • Alternately cut out a slot in a thicker rod to form a U shape.
  • Fit single sheet or rod into the opening to complete the hinge.
  • Drill hole through.
  • Solder U to first form.
  • Solder single sheet or rod to other form.
  • Ball up one side of hinge pin and feed through.
  • Set other side.

Rivets:
You can rivet forms together as well. This is tricky, and mostly used for when you want 2 forms pivoting around each other.
  • Create forms but leave open. One form should have the side to be riveted already attached, then other one should not.
  • Drill hole for your rivet.
  • Ball one end of the wire, feed through the separate sheet and cut to length.
  • Place on block and set.
  • Solder both forms closed.

Other connections:
  • Drill holes and feed a jump ring through the holes.
  • Drill holes and thread together. Feed small lengths of tube between forms to separate.

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