Differences

This shows you the differences between two versions of the page.

--- tool:sherline_cnc_mill [2013/11/21 19:05] – created jarrett
+++ tool:sherline_cnc_mill [2018/03/09 05:01] (current) – Added link to PCB milling with Sherline colorcoded
@@ Line 1: / Line 1: @@
+====== Sherline 5000 CNC mill ======
+^ Status             | Sort of works (contact Jarrett, Richard, or Luke B for details)                           |
+^ Training           | Mandatory                                       |
+^ Hackable           | Sort of (please keep usable as a CNC machine)                                                           |
+^ Usage Restrictions | Members Only                     |
+^ Owner              | VHS                                         |
+^ If it Breaks       | Put a "broken" sign on machine, post to Talk with details.   |
+^ Loan Status        | Donated to VHS by John Craver                 |
+^ Arrival Date       | June 2010                                                                   |
+^ Location           | Workshop                                      |
+^ Champion           | See [[tool:compendium_of_champions#tools|Compendium of Champions]]     |
 ====== Information: ======
-  * **owner** = John Craver (indefinitely on loan to VHS)
-  * **user certification required** = Yes (contact John for details)
+Forum thread: https://talk.vanhack.ca/t/vhs-group-project-sherline-cnc-mill/2588
-  * **hackable** = No (See tips below)
-  * **model** = SpectraLight (is actually a rebranded Sherline mill)
+For regular mill's operation:\\
-  * **serial #** = n/a
+login: ''vhs''\\
-  * **arrived** = June 2010
+password: ''vhs''\\
-  * **does it work?** = Sort of works (contact John for details)
+\\
-  * **if it breaks** = Put a &quot;broken&quot; sign on machine, contact John.
+For administrative tasks only the ''root'' password is ''hackspace''.
-  * **contact** = John Craver
-  * **where** = Electronics workbench, by the fire escape door
-  * **replacement value** = ~$2000
 ====== Safety at a Glance ======
-&lt;HTML&gt;
+<HTML>
-&lt;p style=&quot;border:2px dashed red;&quot;&gt;
+<p style="border:2px dashed red;">
 CNC machines don't care what they're cutting, whether it is steel, or human flesh for that matter...
-&lt;/p&gt;
+</p>
-&lt;/HTML&gt;
+</HTML>
 __Required:__
   * Safety Glasses
-  * Clamping devices (apply liberally)
+  * Clamping devices (apply https://talk.vanhack.ca/t/vhs-group-project-sherline-cnc-mill/2588 liberally; better to have more clamps at moderate pressure than few at great pressure, to avoid damaging the T-slot)
   * an experienced machine operator (if this is not you, you must get someone to help you!)
+  * long hair must be tied back
 __Optional (but recommended):__
@@ Line 31: / Line 42: @@
 __Prohibited:__
-  * Gloves (NEVER use gloves near rotating machinery!)
+  * Gloves, loose clothing (NEVER near rotating machinery!)
   * Unclamped Material (can be thrown off the machine!)
-====== Safe Operation Details ======
+====== Safe Operation ======
+======= Startup ==========
+  * With the power disconnected, clear all non essential material from the CNC working area.
+  * Connect power.
+  * Open the front door of the CNC cabinet to access the keyboard, mouse, axis power and PC power.
+  * Make sure axis power is set to off.
+  * Turn on the PC.
+  * login: ''vhs''
+  * password: ''vhs''
+  * Start LinxCNC
+  * Make sure the big red Emergency stop button is off (pulled out).
+  * Enable the axis power.
+  * verify that there are no loose wires and the machine appears to be in good working order
+  * handle any warning messages that LinuxCNC reports.
+  * Proceed with prep and cut.
+TODO: FINISH THIS
+======= Shut down ==========
-__Description:__
+  * Quit LinuxCNC
+  * Disable axis power
+  * Logout of linux with the "shutdown" option
+  * Wait for all systems to turn off
+  * Disconnect CNC
+  * Stow keyboard, mouse, and extension cord in CNC
+  * Remove your tool(s) from the chuck.
+  * Clean up the cutting leftovers.  The next user thanks you!
-The drill press comes in a floor or bench-mounted model. It has a motor driven head that has a chuck that accepts bits or cutters. It also has an adjustable table on which the work is mounted. It is operated by pulling a rotary lever that lowers the drill bit into the material. To avoid accidents, the following operational safety rules must be observed by everyone working on the Vancouver Hack Space drill press. Failure to follow the safety rules may result in a loss of shop privileges.
+====== PCB Milling ======
-__Start With A Risk Assessment To Ensure A Safe Work Area:__
+See [[PCB Milling With Sherline]].
-  - A two foot perimeter around the drill press should be kept clear of people, debris and sawdust that impair traction or footing to avoid slips and falls.
-  - Safety glasses with side shields or a face shield must be worn. Hearing protection should be worn.
-  - Remove loose fitting clothing, jewelry, and tie back long hair.
-  - Give the work your undivided attention.
-  - Do not wear gloves or anything that would allow a hand, fingers or clothing to be wrapped around the revolving bit.
-__Operational Safety Rules:__
+====== Notes for later: ======
-  - Approach your work at VHS and on the drill press with a safe attitude!
-  - Make all drill press adjustments with the power shut off.
-  - Keep all guards and covers on the machine when it is on and running.
-  - Make sure the size of the bit is equal to or less than the capacity of the drill press.
-  - Do not exceed the recommended speeds for the type and size of drill bit being used or composition of the stock being drilled.
-  - Center punch the drill-hole location into the stock.
-  - Insert bit into drill chuck and tighten with the chuck key. REMOVE CHUCK KEY FROM THE DRILL CHUCK BEFORE STARTING THE DRILL PRESS
-  - Use a clamp or vise to securely fasten the stock to the drill press table. Never attempt to handhold stock less than 3’ long while drilling.
-  - Drill into cylindrical stock using a “V” block.
-  - Long stock should be drilled with the excess to the left of the operator. If the stock rotates it will hit the drill press column, not the operator.
-  - Support the underside of the stock to be drilled with a backer board secured to the drill press table. DO NOT DRILL INTO THE DRILL PRESS’ TABLE, except for the existing hole in the centre of the drill press table!
-  - Never start the machine without the table clear of everything except the stock you are drilling.
-  - Keep hands and fingers at least 3” from rotating drill bits.
-  - When drilling deep holes, frequently raise the drill bit from the hole and use a chip brush to remove cuttings and allow the cool bit to cool down.
-  - When you begin to break through the underside of the stock, ease up on the feed as to not tear the material from the underside. In addition breaking through too quickly may cause the stock to pulled up the drill bit and off the table
-  - If a drill bit binds, turn off the drill press and carefully turn drill chuck backwards by hand to free the drill bit.
-  - Never reach around or under a rotating drill bit or grab the chuck to stop a drill press. This can result in hand puncture or other serious injury.
-  - Turn the drill press off before looking up or walking away from the machine.
-  - Never stop the rotation of the drill chuck, spindle, or uncontrolled stock rotation when jammed on the bit with your hands or fingers.
-  - Don’t touch the drill bit and shavings since they are hot immediately after drilling.
-  - Always clean the work area in the machine upon completion of the milling task. Do not use your hands or blow the shavings, use a chip brush.
-  - When milling into metal use a coolant oil (WD-40 often works well) and use the appropriate speeds and feeds. Rags or chip brushes saturated with cutting oil should be disposed of in a fire can or outside in the dumpster. Never place oil saturated material in the interior garbage cans within the space!
+  - Machine zero, work zero and G28: https://www.youtube.com/watch?v=J3gN5wqz2FE
+  - http://reprap.org/wiki/4_Axis_TB6560_CNC_Stepper_Motor_Driver_Board_Controller 4 Axis TB6560 Controller board
+  - Tool speed calculator: http://zero-divide.net/?page=fswizard
+  - We have collets for 3mm, 4mm, 6mm and 1/8”, 3/16”, 1/4" shank end mills.
+  - We have a [[http://www.atlas-machinery.com/step-block-hold-down-set/|step block hold down set]], a [[http://www.atlas-machinery.com/milling-vise/|milling vice]] and a set of extra [[http://www.atlas-machinery.com/t-nuts-10-32-10pc-set/|T-nuts]] to clamp your work.
+  - The upper e-stop button should work, but verify that it stops the mill before you begin any real operation.