Cordless drill
From DDL Wiki
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==Use and Basic operation:== | ==Use and Basic operation:== | ||
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# Charge Battery | # Charge Battery | ||
# Remove battery from charger | # Remove battery from charger | ||
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# select "cut-off" torque | # select "cut-off" torque | ||
# engage drive or gear | # engage drive or gear | ||
- | |||
# Place head of screw on bit. | # Place head of screw on bit. | ||
# Hold head of screw to bit (with hand). | # Hold head of screw to bit (with hand). |
Revision as of 18:55, 23 January 2007
Contents |
Cordless Drill
Group II Ming Huo Scott Miller Vishesh Nandedkar Mark Rockwell
Product Dissection
The following notes were taken prior to and during product dissection.
Function/Purpose:
Spin "bits" with a specified torque (variable stepping torque)
- many different types of "bits"
- Drive screws
- Drill holes
- removing stripped bits
- Mixing paint/batter/dough
- pumping water w/ drill powered pump
- impromptu dremeling
- binding things
- home construction
- alignment
- safety
Inputs/Outputs:
- INPUTS: Axial force
- INPUTS: Trigger Pull
- INPUTS: Electricity (battery)
- INPUTS: Countertorque (resist what motor implements)
- OUTPUTS: Rotational motion
- OUTPUTS: torque
Use and Basic operation:
(scenario where putting screw in wall)
- Charge Battery
- Remove battery from charger
- Slide battery into drill
- Select bit/tool
- Loosen Chuck
- insert bit and tighten chuck
- select "cut-off" torque
- engage drive or gear
- Place head of screw on bit.
- Hold head of screw to bit (with hand).
- Place Tip of screw to desired object
- Partially squeeze trigger to provide low rotation-speed at first. All this while pushing axially.
- once screw's thread catch the wood, pull trigger to increase torque/omega.
- consistantly adjust to make sure bit is in line with screw.
- Let go of trigger when screw at desired location.
Different Users / Use Scenarios
- weak wrist/grip
- shaky hands
- can't push hard enough
- tightening Chuck
- Actual drilling into material
- Dead battery
- Improper/Hard surface
- Screw stripping
- Screw alignment
- Wrong bits.
- Aligning bit correctly within chuck
- Poor eyesight
- Poor hand-eye cooridnation
- Over-torquing (too soft a surface)
- Poor lighting
- tight areas/corners (awkward shape)
- Hard time hearing maybe can't hear what's happening
- screw stripping
- overtorqueing
- not strong enought to switch between F/N/R