Ordered A Cobra Class 4

[DieselTech]

10 minutes ago, AlZilla said:

Don't forget to look at whatever else is on the circuit. A 20 amp, 120 volt circuit handles 2400 watts MAX, but you also allow 20% for overhead so your continuous MAX would be 1920 watts. National Electric Code defines "Continuous" as 3 hours, I think. Double check me if you get close.

Not to insult your intelligence, but in case you or someone else don't know, here are the formulas:

Watts = Amps * Volts
Amps  = Watts / Volts
Volts = Watts / Amps

2400 watts = 20 amps * 120 volts
20 amps = 2400 watts / 120 volts
120 volts = 2400 watts / 20 amps

Nope no insult here. I knew the formula's being a diesel technician. I think I will just run a dedicated 20amp circuit to the sewing machine. 

Thanks.

[Hags]

I have a class 3, wish I'd bought a 4, but happy none the less. The motor died a few months in, new one free of charge in a few days, running fine for approx 4 years now.

[AlZilla]

21 minutes ago, DieselTech said:

I knew the formula's being a diesel technician

I did wonder ...

Maybe it'll help someone else one day.

[bladegrinder]

31 minutes ago, DieselTech said:

Nope no insult here. I knew the formula's being a diesel technician. I think I will just run a dedicated 20amp circuit to the sewing machine. 

Thanks.

I wouldn't spend money to run a dedicated circuit. I run mine on the same circuit as a deep freezer, a mini fridge, a couple of led shop lights and also a Portable air conditioner running sometimes.

I haven't had any problems. your machine isn't going to pull that much.

[DieselTech]

5 minutes ago, bladegrinder said:

I wouldn't spend money to run a dedicated circuit. I run mine on the same circuit as a deep freezer, a mini fridge, a couple of led shop lights and also a Portable air conditioner running sometimes.

I haven't had any problems. your machine isn't going to pull that much.

Ok thanks. Did you mention that earlier in this thread. Or I might have read it in another thread. 

Bladegrinder what do you use for sewing machine oil? If you dont mind me asking. 

Thanks.

[DieselTech]

24 minutes ago, AlZilla said:

I did wonder ...

Maybe it'll help someone else one day.

Also I just recently got a ebike & been playing around with the formulas a bit more than usual.

[bladegrinder]

28 minutes ago, DieselTech said:

Ok thanks. Did you mention that earlier in this thread. Or I might have read it in another thread. 

Bladegrinder what do you use for sewing machine oil? If you dont mind me asking. 

Thanks.

A bottle of oil came with mine, yours should too I would think. I did buy some extra off Amazon, I use it around my shop on all kinds of stuff.

[DieselTech]

12 minutes ago, bladegrinder said:

A bottle of oil came with mine, yours should too I would think. I did buy some extra off Amazon, I use it around my shop on all kinds of stuff.

Thanks. I did not know if I should buy some high tech sewing oil or just use what comes with the machine. 

[BlackDragon]

3 hours ago, PeterinID said:

 

Buy an angled tip oil bottle like this https://allstitch.com/products/deluxe-plastic-oiler-1711

 

My Cobra came with that oil bottle and oil

[quiltedlumber]

11 hours ago, DieselTech said:

All you guys with Cobra class 4 machines, How many bobbins do you all keep with your machine? 

Thanks. 

I am just a hobbyist and found a 10 pack of extra bobbins was nice to have . I keep 2 each of my popular colors or thread size available , so if you run out or coming close you don't have to stop and go through the winding process. You will need to do some searching to find a reasonable price but I found it was worth a extra dollars. I always have a few if not more empty and  ready to go , so I can do a one off without wasting thread.