Just Got My Cobra 4 Home And It Does Not Work At All

[Dink]

Make sure the hand wheel is tight and the shaft is not just spinning inside it. This happened to me

[GrampaJoel]

I can't tell you how to fix your machine. Nor can I tell you why things don't work and appear the way they do.

What I can tell you is that I have three cobra machines. Two different sewing machines, and a skiving machine.

They all work great, and, the man named Steve is the reason why I have them. He is a man of his word, and knows the machines backwards and forwards.

If he can't tell you what is wrong he has a wonderful machine Machanix there name Tony who can fix it.

When I have a problem with my machine, ( and you will they are just machines) I just pick up the phone and call them.

I have never been disappointed.

Joel

[Chef niloc]

I ran into A similar problem the other day, the motor just stopped working? I have had the Machine for just over a year and like you experienced shipping nightmares! It looked ok all wrapped up when it was delivered, once unwrapped it was apparent it had had a rough ride. Plastic motor housing smashed few dings and dents, accessories missing, and the whole thing was all out of whack. Customer support (IMHO) does not quite living up to the hype this board creates for it, I gave up after about 6 months of never seeing the replacement motor housing and missing parts after numerous phone calls...was given a $100 Store credit but I've never tried to use it.

Anyway back to the motor issue.

Just like you explained in your post the motor was cycling so it was obviously getting power but when the pedal was pressed the machine didn't work. So today I took off the side plate ( the side with the springs and lever) and was surprised to see how simple the problem was. I must admit I was a little afraid that when I removed the place all sorts of springs wires parts etc. would come flying out, but I was surprised. the lever is connected to some sort of "laser scanner" (excuse the lack of technical terms here), there is a piece of paper with a printed gradation on it. As the paper divides the laserbeam, the less light that passes through the faster the machine goes, hence the darker part of the gradation causes the machine to operate the fastest. This piece of paper somehow got loose, bent up and damaged. It actually took me a few minutes to figure out if the laser was scanning the gradation or if it work by how much light passed through the piece of paper? It was fairly easy to figure out that it worked by the amount of light that passes through rather than a scanning action. So I played around with a few different pieces of material (paper, transparency film, vellum)and printed a gradation on useing my computers printer. To be honest not only that I fix the machine but by playing around with the gradation I've got the motor running smoother than it did it new! Extremely easy to control the speed now, smooth as can be. Here's a picture of the gradation square that I'm referring to. Note if anyone has a similar problem it might not be necessary to replace this piece but rather just secured back in place. However in my case replacing it was necessary and turned out to improve the performance of the machine.

Stock:

My replacement:

[Singermania]

Sorry to hear of your problems, I'd agree with the other guys and ring Steve, I'm over in Australia and even I've heard he's a good egg. Servo motors can be a little touchy, I'd be inclined to pull out the manual and go thru the setup steps....if its still dead after that then you can update Steve on what you've found. Yes the table should be covered by the carrier, get some good photos of the packaging as well as the table top. I have a saying here, hope no carriers are reading this.... 'if a carrier can break it they will'... In other words we over pack as much as poss.

[TwinOaks]

I think that after 18 months, the OP has probably found a solution.......please note the date of most of the posts....summer of 2013.

[Singermania]

pls note, like other people, I don't appreciate snooty replies, I give my time free of charge, if my reply is out of date it doesn't need your response.