Difference between revisions of "Bridgeport Mill"

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The speed of the mill is selected with the Variable Frequency Drive (VFD) mounted to the wall behind the mill.
 
The speed of the mill is selected with the Variable Frequency Drive (VFD) mounted to the wall behind the mill.
[[File:HY02D223B.pdf|Attached]] is a PDF of the VFD owner's manual, that may be useful to change the settings for the VFD
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[[File:HY02D223B.pdf]] is a PDF of the VFD owner's manual, that may be useful to change the settings for the VFD
  
 
To know what speed to run the mill you must know:
 
To know what speed to run the mill you must know:

Revision as of 15:42, 12 January 2019

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Lvl1 qr header.png
Bridgeport_Mill&.png

General

LVL1 has three Ender 3 printers available for general use.

  • Owner/Loaner: LVL1
  • Serial Number: MISC
  • Make/Model: Standard/Pro
  • Arrival Date: 1/12/24
  • Usability: Yes
  • Contact: Matt, Kevin, Paul
  • Where: 3D Printing
Ender 3 Printers


Firmware

Matt has compiled a firmware for our Ender 3s:

One drive link to .bin files

Generally used to machine flat surfaces, this mill can produce irregular surfaces, drill, bore, cut gears, and cut slots. This milling machine is a vertical spindle machine with a swiveling head.

Safety

  • Do not make contact with the revolving cutter.
  • Place a wooden pad or suitable cover over the table surface to protect it from possible damage.
  • Use the buddy system when moving heavy attachments.
  • Do not attempt to tighten arbor nuts using machine power.
  • When installing or removing milling cutters, always hold them with a rag to prevent cutting your hands.
  • While setting up work, install the cutter last to avoid being cut.
  • Never adjust the work piece or work mounting devices when the machine is operating
  • Chips should be removed from the work piece with an appropriate rake and a brush.
  • Shut the machine off before making any adjustments or measurements.
  • When using cutting oil, prevent splashing by using appropriate splash guards. Cutting oil on the floor can cause a slippery condition that could result in operator injury.


Fixture


Cutting Speed

The speed of the mill is selected with the Variable Frequency Drive (VFD) mounted to the wall behind the mill. File:HY02D223B.pdf is a PDF of the VFD owner's manual, that may be useful to change the settings for the VFD

To know what speed to run the mill you must know:

  • The type of material you are cutting (steel, aluminum, brass, etc)
  • The type of cutter you are using (HSS (High Speed Steel) or Carbide)
  • The diameter of the cutter

SFM (Surface Feet per Minute)

Material HSS Carbide
Aluminum 600 800
Brass 175 175
Delrin 400 800
Polycarb 300 500
Stainless Steel 80 300
Steel 70 350

Suggested RPM SFPM X 3.82 / Tool Diameter

Example: You are cutting Aluminum with a 3/8" HSS end cutter

600 x 3.82 / 0.375 = 6112 or Set the mill to 6000 RPMS