diff --git a/Readme.md b/Readme.md index 453645f..5d75a02 100644 --- a/Readme.md +++ b/Readme.md @@ -35,6 +35,8 @@ Useful for: furniture, cabinets, flat-pack, instruments, desktops, mechanical pa * Practice manually controlling both the mini CNC and the full-sized Omni CNC. * Practice setting up a job and manually milling it. +![Week1](./class1.png) + **Exercise - Milling Practice** Using the mini-mills, learn to set up a machine for proper milling. Repeat this on the large machine, and manually control the machine for your first milling operation. @@ -62,6 +64,8 @@ Next, Starting from basic specifications, design the disc in CAD, then create th * Designing for milling - filets, chamfers, holes * Tags and Dressups +![TrinketBox](./class3.png) + **Exercise - Jewelrybox** Learn to plan the ordering of operations. Learn how to use manual control to override the functioning automation. diff --git a/class1.png b/class1.png new file mode 100644 index 0000000..66e27c8 Binary files /dev/null and b/class1.png differ diff --git a/class3.png b/class3.png new file mode 100644 index 0000000..60e4411 Binary files /dev/null and b/class3.png differ diff --git a/week1/Readme.md b/week1/Readme.md new file mode 100644 index 0000000..39443ba --- /dev/null +++ b/week1/Readme.md @@ -0,0 +1,45 @@ +# Week 1 Manual Control + +In week one, students dive right in and learn manual control of the CNC milling machine. + +Starting with the desktop 3018, students learn the parts of the machine and what they do. + +Concepts introduced include: + +* X, Y, Z planes +* Gantry, spindle, stepper motors +* Spindle clearance +* Gcode + +**Exercise:** + +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. + +Students now return to the smaller desktop machine for the manual cutting example. Concepts introduced include: + +* Collets +* Spring clamps +* Bit properties +* Chip load/spindle speed +* Spoilboard + +**Exercise:** +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. + +## Large Machine Introduction + +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: + +* High/Low speed controls +* Distance setting +* Homing on startup + +Students should have an understanding of the importance of manual control of the machine, when it will be used in each job they do. + +**Exercise - Manual Calibration** + +Play the targetting game to learn how to manually position the tool head as you would do in setting an Origin Point. + + + +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.