Rebuilding a class 4!

[Timmmm]

HEEEEELP! I just scored a class 4 machine plus the motor for $1000. It didn’t come with the stand but it does have the motor. I have a full woodshop at my house. I’d like to rebuild the base myself with gorgeous woods. Has anyone done this? Does anyone have a schematic of the class 4? Dimensions? I got the instructions but assembling this thing correctly was not part of it. Any help would be appreciated. Thank you

[DieselTech]

What are you actually wanting? Dimensions for the pedestal stand?

Did you get the speed reducer pulley & bracket?

Thanks.

Edited December 2 by DieselTech

[dikman]

I doubt building a pedestal-type stand out of timber would have the rigidity needed, class 4's are big and heavy! There shouldn't be any problems making a more conventional table out of wood. More info needed on exactly what you're trying to achieve.

[Northmount]

9 hours ago, Timmmm said:

I just scored a class 4 machine

Moved your post to Leather Sewing Machines.  This is where the machine guys hang out and you are more likely to get responses here.

[AlZilla]

I'm guessing you mean a Cobra class 4? If so, any of a number of people, including me, could give you the various dimensions of the pedestal stand. Mine isn't a Cobra, but I'd bet the stands are all close enough to the same.

@dikman may have a point about the rigidity. The base is steel plate and the healthy sized post is welded to it. There must be a lot of torque on that lower weld. You could end up with something closer to a carriage for civil war era artillery ...

But, if all you need is the  measurements of the stand, I'd go measure mine for you.

[kgg]

19 hours ago, Timmmm said:

I have a full woodshop at my house. I’d like to rebuild the base myself with gorgeous woods.

I am assuming you have a Cobra Class 4 machine. Are you planning on building a Juki style frame where the machine overhangs the end of basically a regular flat top table or a pedestal style stand? Keep in mind that the head of the Cobra Class 4 like all the Juki 441 clones are going to weight in around 120 lbs and they are all nose heavy meaning they always want to tip particularly in the nose downward direction. The Juki table style would give you better stability and probably be more suited to sewing in the sitting position. While the pedestal style stand would be more suited for sewing while standing. Before choosing the style consider things like are their pets / kids that could bang into the machine and tip it over.

If you chose to go with a pedestal stand you probably would be better off purchasing one from the Cobra people unless you are welder and can fabricate a really sturdy safe frame.

If you chose to go with the Juki style you can usually get a used frame from a industrial repair shop for a reasonably cheap price and then add a nice table top.

kgg

[Timmmm]

Thanks all. Just from the requests for extra info I’ve narrowed down what I want to do. Never heard of a juki table or anything other than what I saw on the Cobra site for a stand. I have decided I’m going to buy a Harbour freight work bench and install it off the edge and rework all the drawers to the right  so I can install the motors and things under the top. That will also then give me storage for all the leather and tools Ive been accumulating trying to get this far.
 

Also I have to say this. I got in touch with Cobra. I kinda begged for a schematic or parts list or some sort of drawing of the tabletop or ANYTHING to help me out here. I do t even know if the machine has everything as I’m new. Cobra, I won’t say the man’s name on the web but, sent me EVERYTHING I asked for. A parts schematic with part numbers for ordering. A diagram of the tabletop with all the cutouts and holes. And also a diagram of the stand itself so I could understand what I am trying to build/simulate. What a class act. I will be buying my first NEW machine directly from them. Customer service top notch …and I wasn’t a customer. Nuff said.

[dikman]

That workbench should work although it will take a bit of faffing around to sort out the foot pedals. Don't forget to post a couple of photos when you've finished as it may provide ideas for someone else.