Speed Drill
How is the two-speed feauture of a DC coordless drill constructed?
A two-speed switch selects between resistors connected in series with the motor
A two-speed switch selects between full battery voltage or a tap in the battery pack
A two-speed switch connects the batteries to two different field windings
The ON/OFF switch has two contacts that are enabled depeing upon the amount the trigger is depressed.
If this is multiple choice then depending on the manufacturer, a couple of answers are good. The two field windings, although possible, make for a very expensive motor so that you won’t find. The on/off switch with two contacts is similar to the speed resistor one. One of those would be my choice if these were all I had to choose from. The battery tap wouldn’t work well because you would drain a portion of the battery and when you switched to the full battery there would be a huge surge inside the battery pack to balance out the two parts. In all practicality though, most manufacturers use a slide type resistor in the trigger to give Variable speed. That’s easier than all the extra stuff needed for just two speeds.
The 4 Best Foot Speed Drills for Lacrosse
|
|
Einhell 1010 watt corded impact drill with electronic speed control $94.48 |
|
|
Irwin 10502123 35 x 250/370mm Speed Hammer Max Drill Bit $130.54 |
|
|
Irwin 10502120 32 x 250/370mm Speed Hammer Max Drill Bit $136.17 |
|
|
Irwin 10502099 16 x 200/340mm Speed Hammer Max Drill Bit $84.29 |
|
|
Irwin 10502095 14 x 200/340mm Speed Hammer Max Drill Bit $69.69 |
|
|
Irwin 10501972 8 x 300mm Speed Hammer Plus Drill Bit $14.00 |
|
|
Bosch 2608597521 Stepped Drill High-Speed Steel 4 – 39 mm, 10,0 mm, 107 mm $220.17 |
|
|
BOSCH 2608587124 Dry Speed Dia-Dry Drill for WS ø 45 mm $132.77 |
|
|
BOSCH 2608587121 Dry Speed Dia-Dry Drill for ø 35 mm $162.00 |
|
|
BOSCH 2608587125 Dry Speed Dia-Dry Drill for WS ø 51 mm $143.00 |
|
|
Ryobi EID500RS 500W Single Speed Impact Drill $111.17 |
|
|
Silverline Mixing Drill Low Speed 600w $86.31 |
|
|
Irwin 10506626 6X-Speed Blue Groove Wood Drill Bit 32mm $22.11 |
|
|
Irwin 10506625 6X-Speed Blue Groove Wood Drill Bit 28mm $21.46 |
|
|
Irwin 10506620 6X-Speed Blue Groove Wood Drill Bit 16mm $14.57 |
|
|
Irwin 10506622 6X-Speed Blue Groove Wood Drill Bit 20mm $15.74 |
|
|
Irwin 10507602 6X-Speed Blue Groove Wood Drill Bit 14mm $16.80 |
|
|
Irwin 10501952 5.5 x 260mm Speed Hammer Plus Drill Bit $14.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.99 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.99 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.99 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $1.99 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $2.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $2.49 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $3.49 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $3.49 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $3.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $3.99 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $4.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $4.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $4.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $4.99 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $5.49 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $5.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $6.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $6.79 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $7.29 |
|
|
Irwin General Purpose High Speed Steel Drill Bit CHOICE OF SIZE New $7.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $2.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $2.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $2.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $2.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $2.99 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $3.79 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $4.79 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $5.29 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $5.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $5.79 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $6.89 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $6.79 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $7.99 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $7.79 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $9.99 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $11.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $10.99 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $12.39 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $13.69 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $14.49 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $15.79 |
|
|
Irwin Turbomax High Speed Steel Drill Bit CHOICE OF SIZE New $15.79 |
|
|
Irwin 10502015 15 x 260mm Speed Hammer Plus Drill Bit $23.31 |
|
|
2 MintCraft High Speed Steel Drill Bits, 118 Degree $4.95 |
|
|
2 MintCraft High Speed Steel Drill Bits, 118 Degree $4.95 |
|
|
2 MintCraft High Speed Steel Drill Bits, 118 Degree $4.95 |
|
|
2 MintCraft High Speed Steel Drill Bits, 118 Degree $4.95 |
|
|
MintCraft High Speed Steel Drill Bits, 118 Degree $3.95 |
|
|
NEW VARIABLE 5-SPEED DIGITAL FLOOR DRILL PRESS 1-1/2HP $479.99 |
|
|
Irwin 10507131 6.5 x 160mm Speed Hammer Power Drill Bit $13.40 |
|
|
Irwin 10507159 16 x 210mm Speed Hammer Power Drill Bit $32.71 |
|
|
Irwin 10507163 18 x 300mm Speed Hammer Power Drill Bit $53.83 |
|
|
Irwin 10506624 6X-Speed Blue Groove Wood Drill Bit 25mm $17.31 |
|
|
Irwin 10507538 Speed Hammer Power Drill Bit Set (9 Pieces) $90.54 |
|
|
Irwin 10507183 Speed Hammer Power Drill Bit Set (5 Pieces) $62.94 |
|
|
Irwin 10507154 14 x 210mm Speed Hammer Power Drill Bit $32.43 |
|
|
Irwin 10507153 14 x 160mm Speed Hammer Power Drill Bit $31.43 |
|
|
Irwin 10507136 8 x 110mm Speed Hammer Power Drill Bit $18.23 |
|
|
Irwin 10507126 6 x 110mm Speed Hammer Power Drill Bit $15.74 |
|
|
Irwin 10507537 Speed Hammer Power Drill Bit Set (5 Pieces) $62.94 |
|
|
Irwin 10501995 12 x 300mm Speed Hammer Plus Drill Bit $16.29 |
|
|
Irwin 10501994 12 x 260mm Speed Hammer Plus Drill Bit $15.66 |
|
|
Irwin 10501993 12 x 230mm Speed Hammer Plus Drill Bit $15.57 |
|
|
Irwin 10501992 12 x 210mm Speed Hammer Plus Drill Bit $16.26 |
|
|
Irwin 10501991 12 x 160mm Speed Hammer Plus Drill Bit $14.14 |
|
|
Irwin 10501989 11 x 300mm Speed Hammer Plus Drill Bit $16.23 |
|
|
Black & Decker HC306 1-1/2-Cup One-Touch Electric Chopper $9.14 You’ll use this handy 1-1/2 cup, 70 watt chopper to quickly chop onions without shedding a tear, as well as for chopping many other recipe ingredients. With one speed and pulse and a safety lock, the bi-level stainless steel blade makes quick work of each task. The parts are dishwasher safe for easy clean-up…. |
|
|
Proctor Silex 72500RY 1-1/2-Cup Food Chopper $9.08 1-1/2 cup capacity Pulse speed control Dishwasher safe bowl lid and blade1-1/2 cup capacity Pulse control Stainless steel processing blade Compact design 70 watts 120V/AC only… |
|
|
Increasing Speed: Troubleshooting Tips and Drills for Increasing Pitching Velocity [VHS] $5.89 … |
|
|
Baseball World’s Defensive Drill Video (A Proven Baseball Training Program) $26.00 A proven training program that dramatically improves arm strength, running speed, practice organization, infield and outfield skills, and quickness and agility. Developed by Pro Scout and Instructor Tom Emanski. Based on the same drills featured at Baseball World’s Training Center in Orlando, Florida. Baseball World’s school trained teams have won back to back to back AAU National Championship tou… |
|
|
Drills for Speed Agility & Quickness [VHS] $11.95 Gain an extra step on the competition! Build the speed, agility, and quickness crucial to sport performance. In Drills for Speed, Agility, and Quickness, three strength and conditioning experts have put together the best speed, agility, and quickness drills from the top coaches in sport training. Using multiple camera angles and slow motion, the video shows exactly how to execute 30 complex dril… |
|
|
Nelson 1865 Raintrain Traveling Sprinkler $47.99 While an automatic sprinkling system certainly ensures greener grass and nurtured flowerbeds during the sweltering days of summer, not every household comes equipped with such a system and they can be downright expensive to install. Historically, the alternative to the built-in sprinkler system has involved setting up a hose and sprinkler and then manually relocating the water source to several st… |
|
|
Black & Decker 9099KC 7.2-Volt Cordless Drill with Keyless Chuck $19.88 BLACK and DECKER CORDLESS DRILL *7.2 volts *1/2″ chuck size *Ni-CD battery *2 speed reversible *Mid handle design *Keyless chuck *2 year warr… |
|
|
DEWALT DC970K-2 18-Volt Drill/Driver Kit $118.99 DEWALT’s DC970K-2 18-volt cordless 1/2-inch compact drill driver kit is perfect for anyone looking for a compact tool capable of drilling and driving in tight spaces that other tools cannot reach. The lightweight design of the DC970K-2 makes it extremely comfortable to use. Despite the compact design, this drill/driver makes no sacrifice of power and also features a 1/2-inch single-sleeve keyles… |
|
|
Heavy Bag Training $29.00 Heavy Bag Training DVD is your number one source for learning how to properly use the heavy bag for street fighting self defense. Heavy Bag Training is truly a one-of-a-kind dvd! It cuts to the chase and teaches you specific heavy bag drills and exercises that will prepare you for the rigors of street fighting. Finally, a heavy bag workout specifically designed for street fighting! The heavy bag … |
|
|
DVD Soccer Coach Special – Agility Training Vol.1 $19.95 Recommended by Ottmar Hitzfeld (Champions League winner with Bayern Munich & Borussia Dortmund) “The concept of the DVDSoccerCoach has really convinced me: the DVDs are a great training aid – with these drills soccer players improve their game and also have a lot of fun with them. Absolutely recommendable!” by Ottmar Hitzfeld (Champions League winner with Bayern Munich & Borussia Dortmund) The mos… |
This entry was posted on Friday, January 18th, 2008 at 1:17 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.