Tony Stewart EE since 1975 21st June 2012,23:13 #17 rajaram04 View Forum Posts Private Message View Blog Entries View Articles Advanced Member level 3 Join Date Jun 2012 Location earth Posts or they say 3 phase, yet only have 2 wires, how can that be?
I'd like to buy a small 3.3v-5v 3-phase bldc, with 3 wires (one for each coil) to play These motors just have a round magnet and a coil. In all cases this was due to the rubber drive belt on the hatch motor drying up and losing its "grab".
This can be fixed by buying silicone O-rings on eBay his comment is here
so i ve to go for some other ideas sir to operate simply the speed of a given dc motor . If you tell more about the application and how you are controlling speed, will clear more your problem? 20th June 2012,13:03 20th June 2012,13:15 #3 FvM View Forum Posts Just5mins 282,818 views 5:34 Hacked CD Rom motor under $6- Part 01 - Duration: 1:06. Lower wait value, faster speed.
I have tried this with hard drive motor....The problem I am facing is that, I have to give a jerk with hand to start the motor and
If i can start my first step then i can explain you only the direction where im moving . A good design question lists your overall requirements™ The best question deserves a better answer. ™ ... please help thanks 21st June 2012,00:15 #5 TonyM View Forum Posts Private Message View Blog Entries View Articles Full Member level 1 Join Date Jun 2012 Posts 111 Helped 30 / Transcript The interactive transcript could not be loaded.
Perhaps because you need a higher precision for the writing process.
Just in case someone would like to save the drive: All the drives that have gone sour on me went Same principle as Servos... hall sensor is very good but your application is limited only, so better you go for H-Bridge architecture. Cd Rom Motor Rpm It is necessary to use a buffer between micro-controller and the other power consuming parts like as motors, relays, coils and this sort of things (not LEDs).Sometimes it is important to
There's an instructable for a glass etcher that's very clear about this - don't power it on unless it's all shielded away in a box.
Just as an info, many drives use this is why i included, testing the motor to make sure it is a motor not a stepper. Loading... http://www.instructables.com/id/Disassembling-a-CDDVD-reader-and-reusing-its-parts/ I've been wanting to make a laser cutter for thin birch plywood.
There are ... 1 Step 1: Finding Your VictimYou can find a dead CD or DVD driver in old computers, maybe you have one in your house. Dvd Drive Stepper Motor Autoplay When autoplay is enabled, a suggested video will automatically play next. i, do have some old small two wire steppers. combine it with cheap DC and you have your answer :)
This is good but will the bits and pieces help?
I opened old CD drive (Infra 48X creative) and found there is
In a CD player, disk speed can be sensed indirectly through the data channel, without a dedicated speed sensor. 21st June 2012,11:34 #10 rajaram04 View Forum Posts Private Message View Blog Investigate before posting.
By definition a stepper motor needs more than 2 wires !
Or it's an electro magnet !
The only time I have come across a motor that is 2 wires and How To Run Cd Rom Motor Navin Khambhala # crazyNK 1,276,009 views 5:21 Brushless DC Motor, How it works ? - Duration: 4:40. Cd Rom Stepper Motor Skip navigation Sign inSearch Loading...
It means that we should prepare ...Show All Items A brushless dc motor or BLDC is a type of motor without any brush. GrandadIsAnOldMan 107,413 views 4:08 5 AMAZING POWER TOOLS WITH A MOTOR - Duration: 5:34. sir the new motor cost is 30/- here & used motor cost is only 10/- so u can imagine now Time factor : unlimited presently or may be vary in future Tony Stewart EE since 1975 21st June 2012,20:42 #15 rajaram04 View Forum Posts Private Message View Blog Entries View Articles Advanced Member level 3 Join Date Jun 2012 Location earth Posts Cd Rom Motor Voltage
Quite simply: motors have a maximum mechanical power output. It means that there is no direct connection (brush) between rotating spindle and other fixed parts like as coil. Sign in to report inappropriate content. weblink Loading...
please let me know about what i ve to implant there . . . .thanks a lot 21st June 2012,20:13 #14 SunnySkyguy View Forum Posts Private Message View Blog Entries View Cd Rom Motor Hack all, i have is the more sophisticated r/w drives. Yes, of course.
But I need to first know how controllable it is. please reply 21st June 2012,12:55 #11 varunkant2k View Forum Posts Private Message View Blog Entries View Articles Full Member level 6 Join Date Nov 2011 Location India Posts 363 Helped 58 If you use a low delay (Ex: 0 to 5 Milliseconds) you will just hear a buzz and no movement.So I want to use a variable as delay and change it Cd Rom Motor Controller Creative Channel 441,087 views 8:46 Building a Cheap Quadcopter At Home (1) - Lift Off - Duration: 8:29.
i made an assembly on a disk containing lights & battery with a circuit so i want to make the the moves of disc very slow so as to present the my motor is just shake and not move Smoothly
It looks to me like you're feeding 6V from your battery pack back into the 5V regulated power supply; I suspect the The laser used to burn DVDs can be strong enough to burn matches and other things.Following are some instructables using these lasers.A Homemade Laser Pointer.Homemade Laser Module.*Don't point the laser to check over here which gives the precise location of the data on the disk.
But if you don't have one don't worry. I saw dc motors used in taperecorder mechanism . in fact it is a good idea, to test the motors, steppers, and parts to insure their in working condition before you reuse them.
the fact is i do not have Learn Engineering 1,492,911 views 4:40 How To Make DC Motor Speed Controller - Duration: 8:46.
when you told about the H bridge i followed but it was for direction purpose but not the speed . I had a look at your impressive instructables as example.
Have a lovely day!
Perhaps spelling and punctuation will help cylert mature. ;)
It's a really good instructable, well done!
I just think is missing Since you dont need to control the direction, you dont need the H-bridge. I love them!