PCNC1100

Basic Information

• The Tormach was donated by Autodesk
• Tormach PCNC 1100 tech specs
• Resolution: 1 tenth / 0.0001" / 2.54 micron / 1.26262e-8 furlongs
• 1.5HP, 100 to 5140 RPM (two speeds, belt adjust)
• Feed Rate: 110 IPM (X,Y) 90 IPM (Z)
• Fixture plate: Grid of M10 threaded holes (Warning! This is not the same size as our mill clamping kit! Do not force those studs into the Tormach plate! The mill kit uses 3/8-16 threads)
  • TODO create 3D model
  • TODO buy holder clamp set

Usage & Safety

The milling machine is both a precision machine and also powerful enough to seriously hurt you. It needs to be treated with the same respect you would give any precision tool. All members are welcome to use the machine after being shown how to use it properly.

1. Only trained members may use this machine.
2. Tie back long hair, remove long sleeved shirts and jewelry.
3. Eye protection must be worn when machine is running.
4. Check all tooling and machine for damage before using.
5. Sweep / vacuum up chips and leave the machine clean.
6. No unconventional / unsafe use.
7. Usage on non-metals requires your own tools.
8. No hammering on the machine table. It is high precision!
9. You break it, you buy it!

You MUST be trained before using this machine. Please consult a member who knows what they are doing. You can help a guest with a job but guests are not permitted to use the machine themselves.

Note that knowing how to use a milling machine is not sufficient - You must be shown by a trained member the intricacies of our machine.

Coolant Coolant to water concentration must be checked at [SCHEDULE] | Portable refractometer instructions

Tank capacity: 6.5 Gallons / 24L Coolant must be:

• Biodegradable
• Synthetic
• Water based
• NO OIL
• Should be compatible with both ferrous metals and aluminum.

Currently selected coolant:

• Qualichem XTREME CUT 250C
• Source: torontolube.com, Alan at customerservice@torontolube.com - 1 gallon jug is all we need, which is below their minimum quantity - but they made an exception.
• Dilute to 8-10% by adding concentrate to tap water (not the other way around!)

See preventative maintenance

Good idea: [1]

Enclosure

• Enclosure installation guide
• Enclosure solid models

Tool Setter

• https://tormach.com/electronic-tool-setter-31875.html
• The trigger height of the ETS is 80 mm
• TODO

Work Probe

• https://tormach.com/active-probe-kit-31858.html
• TODO

4th Axis The Tormach has an 8" three-jaw chuck, normally mounted as an "A" (along "X") axis. It could also be rotated to be vertical for the "C" axis (along "Z").

• https://tormach.com/8in-super-spacer-motorized-rotary-table-33264.html
• https://tormach.com/adjustable-tailstock-tall-30197.html
• TODO

Preventative Maintenance

• DAILY
  • Way oiler - pull out one full stroke before each use, and again every 4 hours of runtime
  • Air oiler - check for oil (behind the machine)
  • Check coolant level
  • Remove chips from ways, carriage and bellows
  • Agitate coolant with air (todo aquarium pump)
• Long-term
  • Check coolant level and concentration; remove sediment
  • Skim coolant to remove oil regularly (oil grows bacteria)
  • Check axes are receiving oil, check belts

CNC Controller

• Uses PathPilot (based on LinuxCNC)
• TODO

Tool Holder

• TTS - Tormach Tooling System

Items to purchase

• Replacement for TTS set screws (per NYC CNC for this machine): McMaster p/n 92311A556 (1/4x28 Stainless Set Screw). Larger Tormach Set Screw holders use 3/8x24 (McMaster 92311A635)
• NYC CNC "What to buy for Tormach PCNC1100" (this machine)
• Coolant (IN PROGRESS - WG)
• Busy bee 10mm clamp kit (IN PROGRESS - WG)
• Aquarium air pump for coolant, to run a few hours a day

Sources:

• https://www.maritool.com
• https://www.lakeshorecarbide.com/
• http://torontolube.com/

NYC CNC Speeds and Feeds worksheet NYC CNC Speeds and Feeds Videos

Material Table / Recommended Speeds and Feeds

Material + Tool	SFM with Lubricant	SFM with Flood Coolant
6061 Aluminum + 1/2" HSS endmill	Cell 2	Cell 3
Row header A	Cell B	Cell C