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Line 105: − == Authorization == − === This tool requires authorization for use === − − Authorization on this tool requires previous [[Tier 1 Cold Metals Authorization]]. JP DeBaug ([email protected]) holds introductory sessions for the Bridgeport periodically. Contact him or watch the google groups mailing list for details. − === Authorizers === − {| class="wikitable" border="1" − |- − |Mike Warot − |- − |Ed Bennett − |- − |Ryan Pierce − |- − |Derek Bever − |- − |Everett Wilson − |- − |Michael Patton − |- − |Todd Allen − |- − |}
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== Description ==
== Description ==
A recent model Knee Mill made by the Bridgeport company. This is the gold-standard small shop manual milling machine in the US. Most other mills of the same size are direct copies of the bridgeport design. This particular machine is a Series I, J-head with a mechanical variable speed drive. The machine has a power quill feed built into the head, in addition to the additional equipment listed below. This machine is capable of facing, surfacing, drilling and slotting in materials ranging from plastics to mild steel. Harder metals may be cut if special cutters and coolant are available. This machine is not equipped with CNC controls, consequently curved paths are limited to circular arcs. These can be cut on pieces that can be mounted on the 8" rotary table or approximated to a desired precision using the simple or smooth arc functions of the DRO.
A recent model Knee Mill made by the Bridgeport company. This is the gold-standard small shop manual milling machine in the US. Most other mills of the same size are direct copies of the bridgeport design. This particular machine is a Series I, J-head with a mechanical variable speed drive. The machine has a power quill feed built into the head, in addition to the additional equipment listed below. This machine is capable of facing, surfacing, drilling and slotting in materials ranging from plastics to mild steel. Harder metals may be cut if special cutters and coolant are available. This machine is not equipped with CNC controls, consequently curved paths are limited to circular arcs. These can be cut on pieces that can be mounted on the 8" rotary table or approximated to a desired precision using the simple or smooth arc functions of the DRO.
== Authorization ==
=== This tool requires authorization for use ===
Authorization on this tool requires previous [[Tier 1 Cold Metals Authorization]]. JP DeBauge ([email protected]) holds introductory sessions for the Bridgeport periodically. Contact him or watch the google groups mailing list for details.
=== Authorizers ===
{| class="wikitable" border="1"
|-
|JP DeBauge (primary)
|-
|Mike Warot
|-
|Ed Bennett
|-
|Ryan Pierce
|-
|Derek Bever
|-
|Everett Wilson
|-
|Michael Patton
|-
|Todd Allen
|-
|}
== Personal Tooling and Learning Resources ==
== Personal Tooling and Learning Resources ==
! Cost
! Cost
|-
|-
|Cutting bits
|End Mills
|A set of sharp cutters you don't have to share
|A set of sharp cutters you don't have to share
|can be purchased from McMaster, Enco or Shars
|can be purchased from McMaster, Enco or Shars
|~$50 and up
|~$50 and up
|-
|Caliper
|Measurement device accurate to approximately .001". Mitutoyo is a preferred brand. Beware of counterfeits.
|Amazon, or any industrial supplier
|$30 and up
|}
|}
* Kurt 6" vise
* Kurt 6" vise
* Hold down set
* Hold down set
* 5C collet set
* R8 collets (tool holding) and 5C collets (work holding)
* Palmgren 8" Rotary Table
* Palmgren 8" Rotary Table
* Boring heads
* Boring heads
* Tilting table
* Tilting table
* Spindle square
* Spindle square
* Sine plate
* [[Bridgeport Horizontal Attachment|Horizontal Attachment]]
* [[Bridgeport Horizontal Attachment|Horizontal Attachment]]
=== Upgrades ===
=== Upgrades ===
=== Currently Authorized Users ===
=== Currently Authorized Users ===