open in new window

Motor Mounts
Lab Assignment - Motor Mounts and Pillow Blocks

Materials -
Plastic - Acrylic or Lexan - 1/4"
Aluminum Angle - 1 1/2"
Wood Sheet - 1/2" ply


Sheet Metal Screws
Machine Bolts
Sprockets and Chain
Motor

Tools -
Horizontal Band Saw
Stationary Sander
Drill
Metal Lathe
Vertical Mill

Measuring and Clamping -
Carpenters Square
Straight Edge
Metal Ruler
Tape Measure
Calipers

FINAL MEASUREMENTS - Download and print as your reference. All measurements to scale.
Motor Mounts
Pillow Block

Step One - Cut Your Mounts From Aluminum

- Motor Mounts
- Measure and cut three lengths at 2" from the 1 1/2" Aluminum Angle
- Check all cuts with Carpenters Square
- Use the Sander to Square your cut


Step Two - Measure and Mark Your Motor Mount

- Measure an 1.1" inch from the bottom of the Angle. This will be you Motor Face.
- MOTOR BORE LINE - Use the calipers to score the aluminum at 1.1" ( This is where you motor's bore will be. )
- MOUNTING SCREW LINE -Use the calipers to score the aluminum at .825" ( This is where the mounting screws will be.

- Find the center of your piece ( Should be 1" )
- Use the carpenters square and mark the center with the sharpie
- From the center of the MOUNTING SCREW LINE measure out .61" on both sides. ( These are you mounting screw holes. )

- On the other face of the angle you want to mark for your base mount holes. These will not need to be as accurate.
- Measure in 1/4" from either corner and make a mark.

Step Three - Clamp and Drill Motor Mount

- Place your piece in the Mill vice Mount Face Up.
- Use parrallel bar or scrap aluminum to elevate piece away from vice.
- YOU NEED TO BEWARE SCARRING THE VICE OR THE PARRALLEL BARS. NEVER RUN THE DRILL BIT INTO THEM.
- The left/right movement is referred to as the 'X-axis', the front/back movement as the 'Y-axis' and the up/down movement of the spindle as the 'Z-axis'.
- Insert 1/4" drill bit. Align Drill bit to Motor Bore Mark. Check both X and Y Axis visually. Run hole. Set the Zero on the X and Y axis.
- Replace 1/4" bit with 1/2" bit. Run hole.
- Replace 1/2" bit with 1/8" bit.
- Roll the Y degree dial .275" towards you.
- Roll the X degree dial .61" towards either the right or the left.
- Run hole.
- Roll the X degree dial 1.22" in the other direction.
- Run hole.

- On the other face of the angle you want to drill your base mount holes. These will not need to be as accurate.
- Align 1/8" drill bit to marks and run hole.

Step Four - Pillow Blocks

- Cut two motor mounts and use the second one as the basis for a pillow block.
- Clamp only the acrylic in the vice. Flush with the surface of the jaws of the vice.
- Use this second Motor mount to align your drill bits to drill the acrylic. It will serve only as a guide for alignment. Move aluminum before drilling.
- By doing this you will avoid having to remeasure the acrylic and if done with care you can make sure the aluminum and the acrylic will line up.

- Pillow Block