====== Manual Mill ======
^ Status             | Operational as of February 2021                          |
^ Training           | Required                                       |
^ Hackable           | NO                                                              |
^ Usage Restrictions | Members Only, only after VHS training / orientation                     |
^ Owner              | Mark Denny (friend of JohnC)                                          |
^ If it Breaks       | Attach "Out of Order" sign / note. Post to Talk and Slack, contact area Champions   |
^ Loan Status        | Long Term Loan                 |
^ Arrival Date       | November 2013                                                                   |
^ Location           | Machine Shop                                      |
^ Champion           | See [[tool:compendium_of_champions#tools|Compendium of Champions]]     |

{{ ::green-manual-mill.jpg?200| }}

===== Safety =====

Always wear eye protection while using the mill. VHS-specific training / orientation is required. If used improperly, workpieces or pieces of cutting tools can be thrown around the shop at high velocity.

===== Specifications: Mill =====

Mill is a Long Chang LC-15A. Very little info for this mill is available online.
 
Please review this {{ :tool:lc15_lc30_manual.pdf | Basic Manual }}

The following information was measured from the mill and may be inaccurate.

Spindle Taper: MT3 - Morse Taper #3

Table: 1/2in T slots

===== Notes =====

To move mill head up and down (major vertical adjustment); you need to loosen two nuts on the right-hand-side of the head, and use the crank on the left-hand-side of the mill to raise or lower. Retighten securing bolts before use (when loose, crank has huge slop).

===== Axes =====

X/Y - handwheels on table

Z - large grab handle on right of mill, or handwheel on front of mill. Black locking ring on grab-handle on right of mill engages/disengages handwheel. This axis can be locked via the small black lever on the front-left of the mill head.

===== Fixtures =====

The 3.5" swivel vise can be bolted to the table via T nuts / bolts. Never assume that the vise is aligned correctly; use a dial indicator to check.

We have a set of 1/2in T nuts + fingers + step blocks for the CNC mill that will also fit this mill.

===== Tooling =====
 
- Drill Chuck - at the moment, the only chuck key that fits is on the drill press in the Fab shop area.
- 2x Offset boring heads
- Fly cutter. Takes an HSS toolbit, ground to the correct profile
- 1/4, 3/8 and 1/2 collets. Used to hold end mills, fly cutters, and the small boring head
- 2.5" face mill. Needs to be replaced, as all the carbides are chipped, and are not available for purchase. Still works reasonably well
- Drift keys. USe to remove the tooling from the spindle. See document (pending) for use.  
- (many more in varying condition)
- (Most) tooling is located in the red toolbox in the end of the (pending) work bench.
===== Speeds & Feeds =====

Cutting speeds can be determined easily by using this {{:tool:cutting-speed-nomogram.png?linkonly|cutting speed nomogram}}. The {{:tool:lathe-cutting-speed.png?linkonly|original cutting speed nomogram}} came from Ian at the BCSME.

===== Tutorial =====

A written tutorial won't suffice! Don't touch the machine unless you've received training!

===== Maintenance Log ====

^ Note               ^ Date         ^ Who       ^
| Wiki entry created | Nov 20, 2013 | Thomas L. |
| Wiki entry updated | Nov 27, 2013 | QuanaParker |
| Vice alined and bolted to table | Nov 26, 2013 | QuanaParker |
| Tool/Work bench built  {{::tool:grizzly_toolbench_img_3981.jpg?200}} {{::tool:grizzly_toolbench_img_3983.jpg?200}} | Nov 26, 2013 | QuanaParker |
| New drawbar, drift keys | Feb 2020 | Billiam |