Recent content by saad ahmed khan

can anyone tell me what exactly a machining center is? from googling it i find lots of sites that are selling cnc machines.. can anyone give me a link that has detailed info about cncs their uses and purposes working etc..? any help will be appreciated thanks in advance

solar power is in plenty.. solar cells are NOT. i want to use the mains to charge the battery as well as run the switch. and when the mains fail then i want the battery to run the switch.. you people are not getting my point exactly.

the switches are on poles about a km apart. i caNT USE one ups and drag its wire for the whole distance. i want a stand alone system i intend to use a bike battery. i want to make make own charger though coz i can't find any good quality ones locally.

i suggest you read up on cengel boles thermodynamics. there's plenty about the carnot and rankine cycle in it, advantages differences etc. ebook is available

hello every one! due to frequent power outages in my area, the lan switches at different locations stop working. so either the light is out or the switch is not working which is really irritating. so can some one help me with a circuit that can supply 6 volts for the switch in case of...

ok its been a long time since i replied.. making inverters is expensive... i just wanted to do so coz i like making stuff. any how i got my uncle to bring me an inverter from Canada so problem solved

how do you make them the traditional way?? i don't have any idea how to make one but they seem to be cool. any help?

i am in pakistan.. 50 is a bit low for city driving. its not a small city. i was thinking of something that could take me to university daily. and what vehicals are you referring to? cars are very expensive here unlike usa where you can pick up a car from junk for almost no cost. even 20 year...

what about all the conversions projects that people carry out.. they take out the engine and put in a motor.. is it really that easy?? and they use the original transmission of the car... so i was thinking along those lines. fabricate a buggy type vehicle and use a transmission taken from a...

net problems... this multiple motor idea is a good one. yes i will be using a changeable gear box. i am thinking i might as well use a transmission right out of a car... does anyone have ideas as to what model and make of car might have a usefull transmission? making my own gear box...

speed can be between 50 to 80 km/h... acceleration should be such that the vehical looks like its moving.. i am not making a tesla roadster!

actually i am a mechanical engineer so my knowledge on motors is pretty limited. i can fabricate a lot of the stuff including the body... i think the range will be limited by the batteries?? i want to use lesser batteries as they are pretty heavy. lead acid is what i will use as llithium...

i want to make an electric vehical, problem is i can't decide on a proper motor. the vehical can weigh upto 300kgs so what sort of motor do i need to propel it at decent speeds. i can use a gearbox attached to the motor so the torque part can be solved to some extent. can u people send me...

thanks triden i am thinking too about the audio transformer i asked some electronic shop owners in my area thet were also saying that there is some sort of transformer for my application but no one could point out exactly what it was do you have any pics or links about the transformer

thanks chroot by the way