Machine Shop Course Safety Instructions

Instructor – Rob Bennett
(517) 884-5541

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Shop Safety

1. Safety glasses will be worn at all times while working in the shop.
2. NEVER attempt to operate any machine if you are not sure how it works.
3. This class is designed to give you a brief introduction to various machine tools and methods used in the Machine Shop. SHOP SAFETY is the most important lesson that must be learned.
4. Below is a brief list of safety tips and related rules for tools found in this shop.

Drill Press

1. Work piece is always clamped securely.
2. All table locks must be tightened.
3. Make sure to use the properly ground drill.
4. Use the correct speed.

 

 

Band Saw

1. Always use a push-stick when cutting.
2. Never – Never – cut thin material on the Band Saw. Shear it.
3. Use the correct speed.

 

Bench Grinder

1. Make sure the gap between the grinding wheel and the tool rest is 1/16″ or less.
2. Keep a secure grip on the work piece.
3. Try not to turn the tool red when grinding; this takes the temper out of the steel.
4. The only things that are ground on a bench grinder are tool steels (drills – tool bits). Everything else should be done on the Belt Sander.

Lathe

1. No loose clothing or loose jewelry.
2. Always clamp work securely.
3. Never leave “key” in chuck.
4. Always be sure that saddle is clear of chuck.
5. Spindle must be stopped to change gears.

Milling Machine

1. Work piece must be held securely.
2. Never leave wrench on the mandrel.
3. Always check spindle rotation.
4. Never climb cut.

 

Other Things to Remember

1. You only grow fingers once!!!
2. Stop working on machine when talking to someone.
3. Never leave sharp corners or edges on the projects you make.
4. Brush all chips, dirt, etc. to the floor when you are finished. This leaves the machine clean for the next person. (Which could be you!)
5. Put all equipment back to its proper location. You will find nothing is more frustrating than looking for tools while working in the student shop!

Notes on designing or drafting

When designing or drafting blueprints for someone else to make parts from, always try to do the following:

1. Use lots of notes.
2. Show was many views of parts as practical.
3. Always list material, quantity to be made.
4. If part “A” should fit into hole “B” write this sort of comment on the print.
5. Do NOT “over dimension” your part. If a dimension is not important do not put a four place decimal dimension!

Tolerance
Fraction	→	± .015″
.x	→	± .010″
.xx	→	± .005″
.xxx	→	± .001″
.xxxx	→	You can NOT afford to have this part made!!