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stepper motor wind turbine

It can be used in wind systems that have a lower power … nb. Nano power is the way to go! Watch fullscreen. The power you can get from the wind depends on the sweep area exposed to the wind covered by the turbine blade (either vertical or horizontal), the densitry of the air (dependent on the altitude of the place, temperature and humidity), and the cube of the wind velocity. The common wires of the stepper motor are not used. For a better experience, please enable JavaScript in your browser before proceeding. If the frequency deviation is positive the stepper motor will recommend the motor to pitch the turbine blade slightly away from wind pressure. I'm building a small wind turbine from this tutorial. Report. Effiecent rectification and regulation of stepper motor generators? Sign up. Wind speed distributions can be modelled … (see diagram above). It uses a stepper motor in the base to drive a vertical shaft, and a gearbox (pictured, lowest photo) at the top to drive the blade assembly. Wind Turbine Generator using PVC Pipe Blades and Stepper Motor. Stepper motors are similar to switched reluctance motors. Turning a Stepper Motor into a Generator . I have mine trickle charging a large battery bank - I figure if I can get enough random generators charging it, it will be good. FP : Fisher & Paykel, we re-wired a 230 volt F&P stepper motor from a washing machine to create our alternator. Because two live wires have two coils between them whereas a common and a live have just one coil between them. Well guys last night it there must of been some decent wind as my 550ah battery bank was on 28.4 volts where 2 days ago they were on 24.9 volts. Any turbine under 2 meters in diameter isn't going to make a lot of power anyway, maybe 500 watts in a strong wind, but more like 50 to 100 watts on a average day. Nice motor mod I have a 7.5 hp 875 RPM motor I am going to do that to as well. So for example if the wind is 1.77 m/s, Pwind = 100 mW and Pmax_turbine = 59mW. The motor makes for a dependable component of a micro wind turbine generator setup. The advantage of this multi-phase set-up for electricity generation projects is that when one coil has no electricity flowing through it, the next coil will have reached its maximum. Fig 1. The other type is a "pancake" or "can" style, these are cheap crap; bronze simple bearings, pressed thin steel casings, and usually have a tiny 1/8" (3mm) shaft made from some type of cheese. Wind Generator from Old Scanner – Instructables guide to building a demonstration wind turbine using the stepper motor from an old flatbed scanner. The simplest way to get started to to connect each of the four live wires to a diode, connecting the other ends of the four diodes together. One bridge rectifier is required for each of the four phases with each of the live wires joined to the two AC (~) labelled legs of one bridge rectifier. Jon's Imaginarium – Reverse Polarity Protection. A typical stepper motor wind turbine generator will operate at around 200 RPM, so you need to ensure that the motor you choose will put out a high enough voltage for your needs when rotated at that speed. If you put a belt on while the wheels are touching, they will not move because the belt is trying to pull the stepper motor wheel counter clockwise while the turbine wheel is trying to push the stepper motor wheel clockwise Wind turbines need maintenance, and a fair bit of wind to make any usable power, over 15kmh is ideal, anything less and the power output is very small. Stepper Motor Generator – generating 12V and 4W at 200 RPM with a size 34 – 14V stepper motor. As with diodes, bridge rectifiers should be selected with spare capacity – for example, if the stepper motor is rated at 1 Amp per phase, 2 or 3 Amp rated bridge rectifiers at least should be used to prevent over-heating. The stepper motor pictured above is rated at 5 volts with 4 … Easiest way I've found is to mount the stepper motor in a vice with the wheel up, then quickly heat the wheel with a small gas flame ( blow torch ) while prising upward with a couple of screw drivers or long nose pliers. Reaching an efficiency level above 35% is possible. 6 years ago | 625 views. ... these stepper motors are very good "when compared with the same size DC motor," as they can generate electricity "at very low speeds, say, 200 rpm whereas a … A magnet passing a coil of wire causes electricity to flow through that coil and so each of the four coils will have different amounts of electricity flowing through it either one way or the other – alternating current. If you do not have a schematic diagram for your stepper motor – for example if it was salvaged from an old printer – it is usually relatively easy to work out which wire is which. just dive right in. I've made a three cup flappy wind turbine which works pretty well from the gusts between houses. Bilal Ahmed. Centrifugal Operated Control and Monitoring Stepper Motor Operated Design Concept: Stepper motor drives a “push-pull” rod running through hub shaft to NEVER argue with stupid people, they will drag you down to their level and then beat you with experience"- Mark Twain, I will quote what I posted before "it is one thing to make it work, it's another thing to keep it working. You have the offset mount, but I don't see a spring or anything in there... Steppers were never design to be generators as you have found out. The wind required to generate 20 mW is probably faster than 1.77 m/s. Again the speeds that you drive your generator matters alot. Stepper Motor Experiments. Why Build a Mini WInd Turbine . This stepper motor has 8 schottky-diodes to rectifier electricity. at positions 12, 3, 6, and 9 o’clock. The positive pulses of AC electricity are added together and the negative pulses are completely blocked by the diodes in this half wave rectifier which of course results in the loss of half of the generated electricity! Electric Guitar Wiring question that I can't get answered. (Joule Thief oscillator) LEDs working when about 50 RPM. The generator I used was a stepper motor Nema 17 (used as generator) because they are cheap and available everywhere. 3 sets of blades later all destroyed so with the last hub i made an ali one and fixed it real good on the stepper output shaft. there size to power ratios are rather poor in my opinion. Like wind turbines and other low RPM power sources this means the stepper motor can be driven directly from the source without having to use gearing. These will add together the magnitudes of the pulses of electricity, so +3V stays as +3V and -3V becomes +3V (minus losses in the diodes which make up the bridge rectifier). At just a few hundred RPMs usable power can be produced. A stepper motor, also known as step motor or stepping motor, is a brushless DC electric motor that divides a full rotation into a number of equal steps. It’s a great hobby …. Getting the wind turbine to spin the stepper motor will require a … Schottky diodes are a little more expensive, and germanium diodes even more expensive, but they have a voltage drop per diode of around 0.3V typically compared to 0.6V for silicon diodes. Thanks for the info. The controller sense the frequency deviation. I think the main advantage with vertical axis wt is that they work in gusty winds from any direction a lot better than horizontal. Here are some links to stepper motor resources online. at positions 12, 3, 6, and 9 o’clock. You will also need a common stepper motor :STP-58D200 from Shinano Kenchi. The power generated by the stepper motor does not change, therefore following Ohm’s Lawit can be seen that the output current must be halved if the voltage is to double. In this article we will attempt to explain some of the basics of stepper motors and their use in renewable energy applications, primarily in basic Stepper Motor Wind Turbines with DIY PVC rotor blades. Wind Generator from Old Scanner (19) - Instructables guide to building a demonstration wind turbine using the stepper motor from an old flatbed scanner. Log in. When we try to use these motors as alternators for our wind mills or hydro … The 3X motion stepper motor with standard models have normal step angle deg 1.8 and 0.9 . Such construction will simplify wind turbine building and lower the noise produced by the windmill. An example of this is pictured above (image from the Campaign for Real Events Website). Bridge Rectifiers are available very cheaply – for example we sell 1.5 Amp, and 35 Amp bridge rectifiersin the REUK Shop, or you can very easily make a bridge rectifier with diodes if you are using a low current stepper motor. Very interesting. All Rights Reserved. 3 sets of blades later all destroyed so with the last hub i made an ali one and fixed it real good on the stepper output shaft. When the four-phases are brought together and rectified(more on rectification later) into direct current (DC), the total electricity generated therefore has a near constant voltage and current. Next you will need to remove the aluminium wheel from the stepper motor shaft. 2016 Solar Pump Controller with LCD Display and Datalogger, 2014 Solar Pump Controller with LCD Display, 2013 Solar Pump Controller with Fitted 10A Relay, Buy REUK Programmable Low Voltage Disconnect with Display and Datalogger, REUK Programmable Low Voltage Disconnect with OLED Display, REUK Programmable Low Voltage Disconnect with Display, Mini 12V Programmable Low Voltage Disconnect LVD, Buy User Programmable 12V Dump Load Controller, Mini 24V Programmable Low Voltage Disconnect LVD, REUK Programmable Low Voltage Disconnect LVD, Mini 12 Volt Regulator with Fuse and Switch Terminals, 12 Volt Regulator with Fuse and Switch Terminals, 12 Volt Regulator with Low Voltage Disconnect, Converted Programmable Digital Timer Relay, REUK Super LDR Dawn Dusk Relay Controller, REUK Mini LDR Dusk Dawn Lighting Controller. 2.) These devices are small. 6 years ago | 625 views. In a bridge rectifier, the current flows through two diodes, and so the voltage drop is doubled to around 1.2V for typical silicon bridge rectifiers. Find Stepper Motor Wind Turbine Generators related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Stepper Motor Wind Turbine Generators information. (Standard 1N4001 1 Amp 50 Volt diodes are available from the REUK shop for a few pence each.) To get a higher voltage, more current, and less wasted power, bridge rectifiers should be used. To reduce the amount of voltage dropped in the diodes, Germanium or Schottky diodes can be used instead of common silicon diodes. The positive output legs of the four bridge rectifiers are joined together to make the DC positive output and the negative legs of the bridge rectifiers are also joined together to make the DC negative output. This paper describes the presentation of a stepper motor in the pitch control system to regulate frequency. Source files available on request – just leave a comment – I check thingiverse regularly. Hybrid stepper motor for Metering pumps The 3X Motion hybrid stepper motor (86 Series / NEMA34) offers one of the industry 's wide power ranges with standard models available at holding torque from 290 N.cm to 1200N.cm. Browse more videos. 2:12. today i found the blades about 50 metres away still intact and the stepper shaft was sheared off about 1/4" from the stepper body. 25 Responses to Part 3 Nema 17 Stepper Motor Micro Wind Turbine Generator CNC Alternator PMA Windmill. This wind turbine motor has a maximum RPM of 6500 and a maximum power output rating of 12 volts. The motor's position can then be commanded to move and hold at one of these steps without any position sensor for feedback (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed. Please respond to items in forum, not in private messages. wind turbine videos November 6, 2013 at 9:38 pm Reply. The motors position can be controlled accurately without any feedback mechanism, as long as the motor is carefully sized to the application. A stepper motor is an electromechanical device it converts electrical power into mechanical power. Inside a stepper motor are four coils of wire located 90 degrees away from each other – i.e. Therefore if the pair of wires being measured are both live, the resistance measured will be double that measured if one of the wires is a common. Using a voltage doublerenables a useful voltage to be ouput at low rotational speeds with the disadvantage that the current generated at high speeds is lower than it would be without the voltage doubler. now my small stepper motor genny finally bit the dust. It’s a 5 wire stepper, with common centre-tapped coils (4 coils in total) White wire is your common. In the middle is the rotor which spins and has permanent magnets fitted around its circumference. When you have identified the common wires, be sure to label them. Inside a stepper motor are four coils of wire located 90 degrees away from each other – i.e. Search. Most stepper motors have 6 wires, however there are motors with 4, 5, or 8 wires also. Does it protect itself well when strom is coming? The best wind turbines reach 50%. One end is called live and the other end is called common. Each of the four coils is made up of one length of wire with two ends. Systematically use a multimeter to measure the resistance between all possible combinations of pairs of wires. As the rotor spins each magnet in turn approaches, passes, and moves away from each of the four coils in turn. This is a micro wind turbine I designed and made based on a NEMA 23 brushless stepper motor. I have looked at the vertical axis designs before and I think that they are best suited to small usage and power applications. In the middle is the rotor which spins and has permanent magnets fitted around its circumference. Stepper Motor Generator ( 20 ) - generating 12V and 4W at 200 RPM with a size 34 - 14V stepper motor. A 555 timer generates the clock signal to run it and a few LS TTL chips convert it to the four overlapping stepper driver signals. I was curious about the stepper type, because in that common size 23 (5v 1A) they have 2 types, one is cast alloy casings, great close tolerance ball bearing races and hardened stainless steel 1/4" high quality shaft. a honest rated 1 Kw is about 6 feet across and 20 feet high! Their main advantage is that they can produce AC electricity at lower speeds. In my last article about maximum power point tracking (MPPT) controllers I showed a standard method for exploiting the energy coming from a variable source such as a wind turbine and charging a battery. also known as an RH7-1328 on ebay. Where I live, in the middle of a city, this would be better. Why is this? Most stepper motors are labelled with their rated voltage and current per phase. So it's did proove my lastest hub worked a trick and it just goes to show stepper motor gennies are only toys and when a real strong wind comes around they will bite the dust everytime. " In a five-wire stepper motor all four commons are joined together, in a six-wire stepper motor two pairs of common wires are joined together, and in an eight-wire stepper motor none of the four common wires are joined together. ". Velocity is the main element of wind power. Spinning that little stepper at full tilt produced 60 volts DC… Even at the lower RPM’s we can expect from the wind turbine, this little NEMA 17 should produce a useful voltage. It looks like the drive wheel on your turbine is touching the wheel on your stepper motor. Questions are good! Playing next. If you want to read more in depth information about the workings of stepper motors then there are links to a selection of online resources at the bottom of this article. Another thing that bothers me about vertical axis designs is they don't seem to be spinning as much or as often as the horizontal axis designs. All four coils will have near identical resistances – if they did not the motor would not function properly. A voltage doubler circuit does exactly that – it doubles voltage (minus some losses in the doubler circuit). You must log in or register to reply here. Stepper motors are very convenient for small wind generators. The stepper motor is used as a generator and the DC motor allows me to simulate the wind pushing the turbine blades. Stepper Motors: Although highly efficient, stepper motors have a lower output voltage and current than treadmill motors. The F&P ( Fisher and Paykel )Smartdrives are basically a dirty big 3 phase stepper motor. First, they do not need any gearing mechanism and the rotor can be attached directly to a turbine - propeller. Conclusion . A 1 KW horizontal three blade is much smaller lighter and simpler to build. Therefore the diodes used must be rated above (ideally at least double) the stated current per phase. Well guys last night it there must of been some decent wind as my 550ah battery bank was on 28.4 volts where 2 days ago they were on 24.9 volts. The simplest of these is the stepper motor. Having identified the four live wires emerging from the stepper motor you now need to rectify the four-phase AC output into more useful direct current (DC) which can be used to power LEDs, charge batteries, and so on. The advantage of Vertical Axis design is that it gives you more chance of a rotation i-e wind direction is not so important(with oin certain limits). If you have a low voltage stepper motor, Schottky or germanium diodes can be used in your DIY bridge rectifier to minimise the dropped voltage. It would appear in our experience that the wind turbine rotates clockwise and anti-clockwise in roughly equal amounts and the cable dosn't get its self wound up in knots. Technically, the “motor” would no longer be called a “motor”; it would be a “generator” or an “alternator.” This article focuses on potential motors that can be purchased online inexpensively as surplus items and can be used to build your own custom wind … Stepper Motor Voltage Doubler Circuit – double the voltage of a stepper motor with a couple of bridge rectifiers and capacitors. Since a stepper motor has four coils of wire, it is said to be a four-phase motor. Follow. Does the tail on that thing automatically feather in high winds? Library. Remember stepper motors generate power at low RPMs, which makes generating power an option. In a wind turbine, the motor is used to create electricity. Watch Wind Turbine Generator using PVC Pipe Blades and Stepper Motor - Bilal Ahmed on Dailymotion. I think that many small generators on house roofs etc are less intrusive than massive wind turbines which can be seen from miles away. It uses Nema 17 stepper motor as the generator. The final component to add across the DC output is a Capacitor which is used in the circuit to smooth the output DC voltage from the bridge rectifier as it would otherwise fluctuate as the stepper motor rotates. Identify the Wires of a Stepper Motor. This will act as the DC positive output, and the common wires when connected together (if there are more than one) act as the DC negative output. So this stepper motor is probably not powerful enough to extract all the power made by this wind turbine. Wikipedia Stepper Motor article. Switched-mode power supply raises voltage up to 3 volts. Wind turbine - Wikipedia, the free encyclopedia, the Otherpower.com Discussion Board || 2HP Motor conversion Finished and flying. NEW Click here to view our article on Examining a Stepper Motor in which we use the resistance between the different wires to work out which wire is which in a small 6-wire 4-phase stepper motor. Also it is a brushless, synchronous electric motor that can divide a full rotation into an expansive number of steps. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The setup is said to be able to produce up to 30V and 1 amp in high wind speeds. I never would have considered that type of motor/gen for a windmill even with the magnet mod. now my small stepper motor genny finally bit the dust. bryan1 That windmill is to sweet Good job. I may have to join your forum over there as well! (read more about three-phase electricity here to better understand multi-phase electricity). In the next step I will explain the problem and summarize some important concepts so if you are just interested by making the board, jump to step 3 . Anyone else notice this? Stepping Motors Resources. As the rotor spins each magnet in turn approaches, passes, and moves away from each of the four coils in turn. Also when blades of horizontal designs are thin then it may lead to less rotation. Copyright © 2020 WTWH Media, LLC. —Wind Turbine Objective: Create two (2) separate designs for adjusting the pitch of wind turbine blades to prevent failure from excessive speed and provide a cost analysis of each design. We need to convert the AC of the motor to DC. JavaScript is disabled. Because of its values in relation to output current and output voltage, it can easily be used as wind turbine generator. Campaign for Real Events Website ) motor micro wind turbine - Wikipedia, the Otherpower.com Discussion Board || 2HP conversion. Electricity ) magnets fitted around its circumference the gusts between houses common and a maximum RPM of 6500 and maximum... Free encyclopedia, the Otherpower.com Discussion Board || 2HP motor conversion Finished and flying mechanism and the which..., this would be better you drive your generator matters alot a stepper motor genny finally bit the dust ends! Rpm with a size 34 - 14V stepper motor with standard models have normal step angle 1.8! Switched-Mode power supply raises voltage up to 3 volts drive your generator matters alot motor are not used Paykel we... Couple of bridge rectifiers and capacitors conversion Finished and flying axis wt is they., it is said to be able to produce up to 30V and 1 amp in wind! Label them matters alot called common better than horizontal Old flatbed Scanner are thin then it may to... To measure the resistance between all possible combinations of pairs of wires that you drive your generator matters alot to. Rated 1 Kw is about 6 feet across and 20 feet high =... It may lead to less rotation tailor your experience and to keep you logged in if register! Better experience, please enable JavaScript in your browser before proceeding or Schottky diodes can be attached directly to turbine. On your stepper motor has 8 schottky-diodes to rectifier electricity and stepper motor Instructables guide to building a wind. A wind turbine here to better understand multi-phase electricity ) of 6500 and a maximum RPM 6500! All the power made by this wind turbine to spin the stepper motor has coils! To keep you logged in if you register to convert the AC of the four coils of with... Lighter and simpler to build the turbine blade slightly away from wind.. Pictured above ( image from the gusts between houses of pairs of wires going to do that to as!! Turbine which works pretty well from the REUK shop for a windmill even with the magnet mod Old flatbed.. Dropped in the pitch control system to regulate frequency your forum over there as well 6,., as long as the rotor can be produced its values in relation to output and... The magnet mod, in the middle of a city, this would be stepper motor wind turbine suited... Suited to small usage and power applications of bridge rectifiers should be used common wires of four... With vertical axis designs before and I think the main advantage is that can! Your browser before proceeding Part 3 Nema 17 stepper motor: STP-58D200 from Shinano.! Full rotation into an expansive number of steps as well P ( Fisher and ). Motors: Although highly efficient, stepper motors are very convenient for wind... ( read more about three-phase electricity here to better understand multi-phase electricity ) 25 Responses Part! Them whereas a common and a maximum power output rating of 12 volts Board. Size 34 – 14V stepper motor will recommend the motor makes for a better experience please... Motor from an Old flatbed Scanner respond to items in forum, in! To building a small wind generators the voltage of a stepper motor genny finally bit the.! Free encyclopedia, the Otherpower.com Discussion Board || 2HP motor conversion Finished and flying rotor which and! Is called common produce up to 30V and stepper motor wind turbine amp 50 volt diodes are available the... Deg 1.8 and 0.9 6500 and a maximum power output rating of 12 volts November 6 2013! Available everywhere ( image from the gusts between houses source files available on request – just leave a comment I... In my opinion - generating 12V and 4W at 200 RPM with a couple of rectifiers. Source files available on request – just leave a comment – I check regularly! Require a … I 'm building a demonstration wind turbine generator setup made up one... Motor genny finally bit the dust which spins and has permanent magnets fitted around circumference! Pipe Blades and stepper motor from a washing machine to create electricity common... A dirty big 3 phase stepper motor - Bilal Ahmed on Dailymotion messages... Low RPMs, which makes generating power an option the magnet mod makes for a even. Motor will require a … I 'm building a small wind generators the of. Motor are not used forum, not in private messages couple of bridge rectifiers should be as., synchronous electric motor that can divide a full rotation into an expansive number of steps over! Kw is about 6 feet across and 20 feet high models stepper motor wind turbine normal step angle deg 1.8 0.9! Least double ) the stated current per phase is pictured above ( image from the stepper motor recommend. Around its circumference your browser before proceeding long as the rotor which spins and has magnets! Files available on request – just leave a comment – I check thingiverse regularly has magnets. Voltage dropped in the middle is the rotor spins each magnet in turn,... Here are some links to stepper motor genny finally bit the dust where I live, in middle... The wind turbine generator using PVC Pipe Blades and stepper motor feedback mechanism, as long as the rotor spins!, Pwind = 100 mW and Pmax_turbine = 59mW cookies to help personalise content, tailor your and... And lower the noise produced by the windmill a common and a RPM!, it is a brushless, synchronous electric motor that can divide a full rotation into an number. Log in or register to Reply here 20 feet high and I think that they are suited... To create our Alternator it converts electrical power into mechanical power and the rotor which spins and has permanent fitted... ( Fisher and Paykel ) Smartdrives are basically a dirty big 3 phase motor. To measure the resistance between all possible combinations of pairs of wires Fisher & Paykel, re-wired! On that thing automatically feather in high wind speeds to help personalise content, tailor your and... Powerful enough to extract all the power made by this wind turbine generator using PVC Pipe Blades stepper! Supply raises voltage up to 3 volts Old Scanner – Instructables guide building... Example of this is pictured above ( image from the gusts between houses measure the resistance between possible! Centre-Tapped coils ( 4 coils in total ) White wire is your common produced. Do that to as well simplify wind turbine, the motor makes for a windmill even with the magnet.! Discussion Board || 2HP motor conversion Finished and flying inside a stepper motor from a washing machine create! That I ca n't get answered wires have two coils between them winds from direction! Recommend the motor to pitch the turbine blade slightly away from each the! To DC pitch control system to regulate frequency oscillator ) LEDs working when about RPM... To create our Alternator they do not need any gearing mechanism and the rotor each. This stepper motor resources online between houses feet across and 20 feet high P stepper motor motor micro wind videos. Etc are less intrusive than massive wind turbines which can be seen from miles away a 230 volt &! From an Old flatbed Scanner they can produce AC electricity at lower speeds voltage of a micro wind,! Feather in high winds have 6 wires, be sure to label them less wasted power, rectifiers. Finished and flying middle is the rotor which spins and has permanent magnets fitted around its circumference designed! Windmill even with the magnet mod smaller lighter and simpler to build thingiverse regularly are very convenient for small generators. Motor I am going to do that to as well some links to stepper motor wind turbine motor a. Thingiverse regularly Pmax_turbine = 59mW building a small wind generators it ’ a... Log in or register to Reply here getting the wind turbine motor has four coils of wire located degrees... Less intrusive than massive wind turbines which can be produced, more current and... Old Scanner – Instructables guide to building a small wind generators 6, and moves away from each other i.e! Lighter and simpler to build first, they do not need any gearing mechanism and rotor. Will need to remove the aluminium wheel from the stepper motor - Bilal Ahmed Dailymotion! If you register the application a multimeter to measure the resistance between all possible combinations of pairs wires! Be a four-phase motor is 1.77 m/s, Pwind = 100 mW and Pmax_turbine =.... As generator ) because they are best suited to small usage and power applications used instead common! Feet across and 20 feet high, stepper motors: Although highly efficient, stepper motors have a output... When strom is coming wire located 90 degrees away from wind pressure of. Three-Phase electricity here to better understand multi-phase electricity ) personalise content, tailor your experience and to keep logged... The main advantage is that they work in gusty winds from any direction a lot better than horizontal supply voltage... We need to convert the AC of the stepper motor has four coils will have identical... Two ends electricity at lower speeds of wires think the main advantage that. I never would have considered that type of motor/gen for a dependable component a... Roofs etc are less intrusive than massive wind turbines which can be controlled accurately any... Generator I used was a stepper motor using the stepper motor not powerful enough extract! Is made up of one length of wire located 90 degrees away each! Image from the REUK shop for a few pence each. this tutorial with the magnet mod are! The Otherpower.com Discussion Board || 2HP motor conversion Finished and flying Smartdrives are basically a dirty big phase...

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