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Electric drill

Electric drill. BADI 1 John Errington. engineering considerations for design. Safe use of electricity – possible damp and dirty conditions Suitability of materials for each part of the drill. Accommodation of moving parts. Transfer of rotating motion from motor to chuck.

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Electric drill

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  1. Electric drill BADI 1 John Errington

  2. engineering considerations for design • Safe use of electricity – possible damp and dirty conditions • Suitability of materials for each part of the drill. • Accommodation of moving parts. • Transfer of rotating motion from motor to chuck

  3. Rotary drill: De Walt 241

  4. Specification:Dewalt Dw241L 110V Rotary Drill 13Mm 701W • 2 Speed Rotary Drill • Extremely Long brush life. • Power to weight ratio best for continuous use. • High torque reversible motor. • Power Input 701 Watt • Chuck Capacity 13 mm Keyless • Max torque 35/15 Nm • No load speed 0 -1100 / 0-2700 RPM • Max capacity • Wood 35 mm • Steel 13 mm • Voltage 110V or 230V models available • Chuck 13mm. • Standard: Side Handle & Depth Stop.

  5. Schematic of gearbox and chuck

  6. Electrical components and housing

  7. Rotary and fixed hammer drills (SDS +)

  8. Ideal for drilling anchor and fixing holes into concrete and masonry from 4 to 22mm in diameter Impact-stop for drilling in wood, steel, ceramic and screwdriving applications Full wave electronic variable speed for total control in any application Safety clutch eliminates sudden high-torque reaction should the bit jam Ergonomic rubber coated pistol grip handle design for improved comfort in use High drilling rate due to revolutionary motor design Includes :multi-position side handle, depth stop, Heavy duty carrying case Power Input: 600 Watts Power Output: 380 Watts No Load Speed: 0-1100 rpm Blows per Minute: 0-4000 bpm Impact Energy: 0-2.4 J Tool Holder: SDS-Plus Max. Drilling Capacity [Wood]: 30 mm Max. Drilling Capacity [Metal]: 13 mm Max. Drilling Capacity [Concrete]: 22 mm Max. Drilling Capacity [Core bit]: 65 mm Weight: 2.3 kg Length mm: 360 mm Height: 205 mm Dewalt D25002K 240V Sds Plus Rotary Hammer

  9. Mechanical components of sds+ impact drill

  10. Electrical parts and casing of sds+ impact drill

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