Thats pretty cool - theres a huge amount of wierdo gearing inside an old mechanical sewing machine. Another interesting thing to pull to bits is a old mechanical typewriter - lots of interesting gearing and stuff in those too (but watch out for the main return spring, its a biggun, and once it flies out, you wont get it back in!)
nice to see some good old quality mechanical inner workings once in a while.
by the way, those mechanical levers on the top of the machine you were messing with were most likely for selecting the type of stitching (ie. straight, zig zag, etc.). not positive but the one that affected the tractor plate under the foot might have been for button holes.
Those sewing machine foot pedals take on 2 basic designs, one is the 'rheostat' (wirewound resistor and wiper), the other is like a set of carbon discs, when you squeeze them the resistance changes.
But the motor is usually fully rated for mains voltage, in your case, 120v.
If that motor has brushes, they will often work on DC too, they even run smoother.
btw, the knob you are thinking of putting on your bass, the centre button was used for reversing the direction for locking the stitch.
they *are* at the lab, and i only took them because we needed them to go get something before all the tools came to GR. for that i apologize. for your screwdriver, you're screwed. But, i can think of at least 2 other people who might have gone down there for a tool recently. i might suggest looking in your auto tool bag ... that did travel with us to KZOO, and i cant remember if we grabbed extras.
oh yeah and my dad was (just retired) a tv tech and the lead you made (power cable with clips) is nick named a "suicide lead" i'll let you guess why :P
@PhattyMo well im pretty sure it was the MacBook battery as they were planning to do the sewing machine afterwards, but please correct me if im wrong ^_^
@PhattyMo Yes it was. Want a demonstration? If so take a cellphone battery and poke a hole all the way through it and big flames will shoot out. (They're not really big but if you were to try it I don't want to be held responsible because you didn't think it would be engulfed in flames as quickly as it did.)
Its dangerous and if you don't know anything about lithium don't do it.
microwaves also have small synchronous motors inside them
brunoshow124 1 month ago
Motors and speed control foot switches salvaged from sewing machines can be used to make great coil winding setups *read tesla secondaries* ;-)
spinctah 3 months ago
Thats pretty cool - theres a huge amount of wierdo gearing inside an old mechanical sewing machine. Another interesting thing to pull to bits is a old mechanical typewriter - lots of interesting gearing and stuff in those too (but watch out for the main return spring, its a biggun, and once it flies out, you wont get it back in!)
dash8brj 1 year ago
look ma, i fixed it!
look ma, i made it really angry!
LOL
cheetawolf 1 year ago
That could very well be a JANOME machine. They made a lot of machines for both Sears and Montgomery Ward and they are built to last.
douro20 1 year ago
ummm...this is gonna sound really stupid, but what does LERF mean?
thewii552 1 year ago
@thewii552 LRF... little rubber foot. They're those little rubber foot thingies on the bottom of almost everything.
orismology 1 year ago
I was waiting for that knob to go flying off at high velocity at the ceiling! SMASH! aww crap there goes a florescent light tube....
grassulo 1 year ago
since when in 1080P?
xan2xan3 1 year ago
nice to see some good old quality mechanical inner workings once in a while.
by the way, those mechanical levers on the top of the machine you were messing with were most likely for selecting the type of stitching (ie. straight, zig zag, etc.). not positive but the one that affected the tractor plate under the foot might have been for button holes.
tyron256 1 year ago
The foot grip plate will move in a direction either forward or back or both depending on the stick pattern selected
CorbyStarletCj1 1 year ago
Those sewing machine foot pedals take on 2 basic designs, one is the 'rheostat' (wirewound resistor and wiper), the other is like a set of carbon discs, when you squeeze them the resistance changes.
But the motor is usually fully rated for mains voltage, in your case, 120v.
If that motor has brushes, they will often work on DC too, they even run smoother.
btw, the knob you are thinking of putting on your bass, the centre button was used for reversing the direction for locking the stitch.
sparkyprojects 1 year ago
'I'm 13.
Kesh789 1 year ago
Thumbs up for Delorians!
KaletheQuick 1 year ago
your handwheel rotaion was rong
mrmatt2525able 1 year ago
@mrmatt2525able Yes but our spelling is Wright.
thegeekgroup 1 year ago 28
@mrmatt2525able *You're, *Rotation, *Wrong. Those are the words you need to relearn in school.
Vim281 10 months ago
LMFAO Chris, after all that it was threaded :P
MorbidAngelification 1 year ago
Finally in 1080P, thanks!
spkymky 1 year ago
I forgot all about The Adventures of Pete and Pete. Dumb but cool show that used to be on Nickelodeon.
Amazing: Corey actually said something cool.
weasel2htm 1 year ago
i saw one of those half size hammers in a DIY shop the other day i thought, 'who would need one of those!?'.
Just another question answered by the Geek Group...
eutectics 1 year ago
TOUCH IT
piandcompany 1 year ago
put a sausage in it xD
djtowo 1 year ago
Those suckers are fucking AWFUL, they eat your straightblade drivers.
I often go through two or three S/B drivers while repairing a sewing mach.
Btw, Chris, You are doing it the hard way.
The general rules of disassembly applies. "It probably wasn't forced together".
Most of the ones are cast in ZINC.
Fiery fail autopsy? I want to see that =D
Serostern 1 year ago
OMG i think this is the geek groups first one above 720P killller!!!
hubzcaps 1 year ago
you would be surprised how many things are cast, but you generaly dont see them, or they are coated in a polymer
rjc0234 1 year ago
@PhattyMo Yes, it was the battery. Chris poked it with a stick and smoke and flame started emerging.
rastarogue 1 year ago
haha. lies. i took your vice grips.
they *are* at the lab, and i only took them because we needed them to go get something before all the tools came to GR. for that i apologize. for your screwdriver, you're screwed. But, i can think of at least 2 other people who might have gone down there for a tool recently. i might suggest looking in your auto tool bag ... that did travel with us to KZOO, and i cant remember if we grabbed extras.
maglinjosvinn 1 year ago
I admire people who designed and calculated this kind of movment mechanism in '70 without advance computer aids.
kildas 1 year ago
oh yeah and my dad was (just retired) a tv tech and the lead you made (power cable with clips) is nick named a "suicide lead" i'll let you guess why :P
HomeDistiller 1 year ago
Once put a drive belt from a lawnmower electric motor directly to a sowing machine, was something insane :p
Lewistodd2008 1 year ago 4
brf's and lrf's but what i like to call the small stick on ones LARFS (little adhesive rubber foot)
HomeDistiller 1 year ago
So,What caught fire in the last autopsy? Was it the MacBook battery?
Inquiring minds need to know!
PhattyMo 1 year ago 8
@PhattyMo well im pretty sure it was the MacBook battery as they were planning to do the sewing machine afterwards, but please correct me if im wrong ^_^
Rodsur 1 year ago
@PhattyMo It was the battery, lithium reacts rather violently with air.
TimeElf1 1 year ago
@PhattyMo Yes it was. Want a demonstration? If so take a cellphone battery and poke a hole all the way through it and big flames will shoot out. (They're not really big but if you were to try it I don't want to be held responsible because you didn't think it would be engulfed in flames as quickly as it did.)
Its dangerous and if you don't know anything about lithium don't do it.
mman454 1 year ago
@PhattyMo
Yes, it was the battery. He was trying to seperate the cells with that crowbar thing.
qwertyboy1234567899 1 year ago