46 lines
1.6 KiB
Markdown
46 lines
1.6 KiB
Markdown
# Week 1 Manual Control
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In week one, students dive right in and learn manual control of the CNC milling machine.
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Starting with the desktop 3018, students learn the parts of the machine and what they do.
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Concepts introduced include:
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* X, Y, Z planes
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* Gantry, spindle, stepper motors
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* Spindle clearance
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* Gcode
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**Exercise:**
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Install the manual offline controller on the 3018. Use it to control the x and y movement of the gantry and bed. Learn to adjust speed control for the motors as well as the spindle.
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Students now return to the smaller desktop machine for the manual cutting example. Concepts introduced include:
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* Collets
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* Spring clamps
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* Bit properties
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* Chip load/spindle speed
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* Spoilboard
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**Exercise:**
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Learn to use clamps for securing material to the bed of the machine. Using XPS foam, students can get used to manually cutting using an offline controller.
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## Large Machine Introduction
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Repeat the same exercise on the larger Omni CNC milling machine. Students should all get a chance to control it. Additional concepts introduced for the larger machine include:
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* High/Low speed controls
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* Distance setting
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* Homing on startup
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Students should have an understanding of the importance of manual control of the machine, when it will be used in each job they do.
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**Exercise - Manual Calibration**
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Play the targetting game to learn how to manually position the tool head as you would do in setting an Origin Point.
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Students then secure a piece of hardwood to the CNC bed using spacers for surfacing. Each should get a chance to manually surface the hardwood using a surfacing bit.
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