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  |Has imagedesc=Bridge Port Mill

  |Has imagedesc=Bridge Port Mill

  |Has description=

  |Has description=

  |Has certification=

  |Has certification=https://georgefox.instructure.com/courses/1256

  |Has make=Bridgeport

  |Has make=Hardinge

  |Has model=Series I

|Has model=Bridgeport

  |Has ace= Madi Jones; mjones16@georgefox.edu

  |Has serial number=HJ315030 / J258546 / J295538

  |Has ace=Scott Demaree;sdemaree20@georgefox.edu  

}}

}}

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Make: {{#show: {{PAGENAME}} |?Has make}}

Make: {{#show: {{PAGENAME}} |?Has make}}

Model: {{#show: {{PAGENAME}} |?Has model}}

Model: {{#show: {{PAGENAME}} |?Has model}}

 

Serial Number: {{#show: {{PAGENAME}} |?Has serial number}}

Ace: {{#show: {{PAGENAME}} |?Has ace.Has name}} ({{#show: {{PAGENAME}} |?Has ace.Has email address}}).

Ace: {{#show: {{PAGENAME}} |?Has ace.Has name}} ({{#show: {{PAGENAME}} |?Has ace.Has email address}}).

Location: {{#show: {{PAGENAME}} |?Is located in facility}}

Location: {{#show: {{PAGENAME}} |?Is located in facility}}

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==Description==

==Description==

The Bridgeport Series 1 Mill is a vertical mill used to mill various materials into desired shapes and sizes. It can also be used to perform special functions such as drilling, chamfering, reaming, fly cutting, and many more. Some examples of items made from mills are piston bore holes, valve plates, gears, and even your own tools. This is done by using a rotary cutter to remove material by advancing a cutter into a work piece in  varying direction along three axes. Milling covers a wide variety of different operations and machines, on scales from small individual parts to large, heavy-duty gang milling operations. It is one of the most commonly used processes for machining custom parts to precise tolerances. The video below shows a part being machined by a CNC mill which is a computer driven mill, but still demonstrates the milling process.  

The Bridgeport Series 1 Mill is a vertical mill used to mill various materials into desired shapes and sizes. It can also be used to perform special functions such as drilling, chamfering, reaming, fly cutting, and many more. Some examples of items made from mills are piston bore holes, valve plates, gears, and even your own tools. This is done by using a rotary cutter to remove material by advancing a cutter into a work piece in  varying direction along three axes. Milling covers a wide variety of different operations and machines, on scales from small individual parts to large, heavy-duty gang milling operations. It is one of the most commonly used processes for machining custom parts to precise tolerances. The video below shows a part being machined by a CNC mill which is a computer driven mill, but still demonstrates the milling process.  

{{#evu:https://www.youtube.com/watch?v=8cp4eCXnc4Q}}

{{#evu:https://www.youtube.com/watch?v=U99asuDT97I}}

 

==Documentation==

==Documentation==

* Parallels - Thin, flat pieces of metal that are used to hold a work piece "parallel" to the mill's work table.     

* Parallels - Thin, flat pieces of metal that are used to hold a work piece "parallel" to the mill's work table.     

==== [https://www.hardinge.com/wp-content/uploads/KneeMill-Complete-Manual.pdf User Manual] ====

[[Media:KneeMill-Complete-Manual.pdf|Milling Machine User Manual]]

==Training==

==Training==

==== Overview ====

==== Operation ====

When making a part, it can usually be milled in several different ways and as a result this will focus on general operations such as changing tools, starting and stopping the spindle, changing speeds, and changing gears. To learn how to mill the specific part for the demonstration see the video below. The first thing you will need to do is properly secure your work piece in the vice. Place the piece in between the jaws and turn the handle clockwise to tighten. If the piece is to small to protrude from the top of the vice use a set of parallels to raise the work piece above the vice. This makes it easy to face the work piece without damaging the vice. Next you will need to insert a tool. To insert a cutting tool under the new system, push the tool upwards into the collet with one hand and then push quill handle up with the other to compress the spring above the collet. Pushing up on the quill handle will allow the the tool to slide up into the collet and the tool will lock in place once the handle is lowered. A decent amount of force is required to compress the spring so don't be afraid to push hard. To release the tool, hold it in one hand while pushing up on the quill handle and then pull it out once the spring is compressed. You are then ready to begin machining. Use the spindle start-stop switch to turn on the mill. You will notice an option for high or low on the switch. If the mill is in high gear, the high setting will run the spindle forward (clockwise) and the low setting will run the spindle in reverse. If the mill is in low gear, the opposite will occur. If you are not sure what gear the mill is in look at the high-low lever to determine the gear (check out the images below to see the location of the switches). Once the mill is on you will need to adjust the spindle speed to match your material by referring to the speed chart on the wall above the mill and turning the spindle speed hand wheel till the speed is correct. Only adjust the speed while the machine is ON. You may need to switch gears to achieve the proper speed. Do this by rotating the high-low range lever from the current gear to the desired gear. Do not force the lever into place if there is resistance; instead use your other hand to slightly twist the spindle so that the range lever slides into place. After the machine is on, use the axes adjustment handles and the digital display to mill your part. Feel free to ask a shop supervisor for specifics or best milling processes for your part.  <gallery widths="250" heights="250">

When making a part, it can usually be milled in several different ways and as a result this will focus on general operations such as changing tools, starting and stopping the spindle, changing speeds, and changing gears. To learn how to mill the specific part for the demonstration see the video below. The first thing you will need to do is properly secure your work piece in the vice. Place the piece in between the jaws and turn the handle clockwise to tighten. If the piece is to small to protrude from the top of the vice use a set of parallels to raise the work piece above the vice. This makes it easy to face the work piece without damaging the vice. Next you will need to insert a tool. To insert a cutting tool under the new system, push the tool upwards into the collet with one hand and then push quill handle up with the other to compress the spring above the collet. Pushing up on the quill handle will allow the the tool to slide up into the collet and the tool will lock in place once the handle is lowered. A decent amount of force is required to compress the spring so don't be afraid to push hard. To release the tool, hold it in one hand while pushing up on the quill handle and then pull it out once the spring is compressed. You are then ready to begin machining. Use the spindle start-stop switch to turn on the mill. You will notice an option for high or low on the switch. If the mill is in high gear, the high setting will run the spindle forward (clockwise) and the low setting will run the spindle in reverse. If the mill is in low gear, the opposite will occur. If you are not sure what gear the mill is in look at the high-low lever to determine the gear (check out the images below to see the location of the switches). Once the mill is on you will need to adjust the spindle speed to match your material by referring to the speed chart on the wall above the mill and turning the spindle speed hand wheel till the speed is correct. Only adjust the speed while the machine is ON. You may need to switch gears to achieve the proper speed. Do this by rotating the high-low range lever from the current gear to the desired gear. Do not force the lever into place if there is resistance; instead use your other hand to slightly twist the spindle so that the range lever slides into place. After the machine is on, use the axes adjustment handles and the digital display to mill your part. Feel free to ask a shop supervisor for specifics or best milling processes for your part.  <gallery widths="250" heights="250">

File:MillOn.png

File:MillOn.png

====General Procedure====

====General Procedure====

This video contains specific information for using the Mills in the Maker Hub as well as a basic overview of what will be expected in your live demonstration. {{#evu:https://www.youtube.com/watch?v=IJjXAxYH9TA}}{{#evu:https://youtu.be/0190xVaZPNw}}'''Note''' that the tool changing system has been upgraded since this video was produced. To insert a cutting tool using the new system, push the collet upwards into the spindle with one hand and then push  the quill handle against the end of travel with the other to compress the spring in the tool change mechanism.  Make sure the quill lock is unlocked when installing or removing tooling. Pushing up on the quill handle will allow the the tool to slide up into the collet and the tool will lock in place once the handle is lowered. A decent amount of force is required to compress the spring so don't be afraid to push hard. Make sure to push the quill feed handle towards the machine to prevent the handle from disengaging. To release the tool, hold it in one hand while pushing up on the quill handle and then pull it out once the spring is compressed.  Never make contact with the cutter while inserting or removing tooling from the spindle.

This video contains specific information for using the Mills in the Maker Hub as well as a basic overview of what will be expected in your live demonstration. {{#evu:https://www.youtube.com/watch?v=IJjXAxYH9TA}}{{#evu:https://www.youtube.com/watch?v=0190xVaZPNw}}'''Note''' that the tool changing system has been upgraded since this video was produced. To insert a cutting tool using the new system, push the collet upwards into the spindle with one hand and then push  the quill handle against the end of travel with the other to compress the spring in the tool change mechanism.  Make sure the quill lock is unlocked when installing or removing tooling. Pushing up on the quill handle will allow the the tool to slide up into the collet and the tool will lock in place once the handle is lowered. A decent amount of force is required to compress the spring so don't be afraid to push hard. Make sure to push the quill feed handle towards the machine to prevent the handle from disengaging. To release the tool, hold it in one hand while pushing up on the quill handle and then pull it out once the spring is compressed.  Never make contact with the cutter while inserting or removing tooling from the spindle.

== Safety ==

==Reset the Space==

* General shop protocol is important when using the mill. Long hair, long sleeves, jewelry, gloves, and lanyards are all risks to be wrapped up by the spindle and should not be worn. 

[[File:Reset The Space HD2.png|left|150px]]

* Always make sure that there is plenty of space between the cutting tool and the work piece before turning on the mill. If the tool comes into contact with the work piece before getting up to speed and is set deeper than the maximum cutting depth, things will break.  

Here is how you can reset the space for the {{PAGENAME}}. Always reset the space!!!

* At times your work piece may be obscured by metal chips while cutting. Do not remove them while the machine is running. Turn off the mill, wait till it comes to a complete stop, and then remove the chips. There are some brushes on the tool rack that may be helpful for removing stubborn chips.  

* Turn off the machine.

* The milling process is great at creating sharp edges. Be aware of this when handling the work piece and make sure to deburr any sharp edges.

* Do not leave any tool within the collet.

* Never make contact with the cutters as they are razor sharp and will cut you.

* Clean and return all tools back to the workbench and/or tool cart.

* Never pass your hand under a cutter.

* Sweep and vacuum the machine.

* Put any unused materials back on the storage shelf and put small pieces in the scrap box.

==Certification==

==Certification==

[https://foxtale.georgefox.edu/moodle/course/view.php?id=30472 Foxtale Quiz]

[https://georgefox.instructure.com/courses/1256 Canvas Quiz]

==Troubleshooting==

==Troubleshooting==