Back stitching Biothane Beta w/Cowboy 4500

[Colt W Knight]

That stuff is tough as nails, weather resistant, and easy to clean. Much less maintenance than leather. 

[Singermania]

HI all, I agree, there is no point trying to sew this stuff without a feed dog.  If you want to get closer to the edge then use a dogleg left or right foot, however the stitches in your foto don't look all that close to the edge to me.  Don't even think about disassembling machines and adding washers etc, this is poor advise and can seriously invalidate your warranty.   Giving this kind of technical advise to the layman is bit risky in my view, leave that to the professionals.........have tried to attach a video of the dogleg foot in action, not the best sewing technique but hopefully will illustrate the point..

 

 

Posted by Cowboy Leather Machines on Monday, February 8, 2016

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Edited July 13, 2016 by Singermania

[Parott1]

The stitch is aprox 1/8" from the edge.  That's a 5/8" piece in the picture.  I didn't add washers to moving parts.  I just loosened the plate to adjust the stitch length and slid a shim under to shorten up the forward stitch. 

Edited July 13, 2016 by Parott1

[Wizcrafts]

Have you thought about spraying the throat plate with silicon, or using some drops of Tri~Flow?

[Parott1]

I posted a pic above and think I got the backstitch pretty close.  I added a shim to the bottom of the stitch nacelle and it seems to have corrected the problem 

Edited July 13, 2016 by Parott1

[Wizcrafts]

2 hours ago, Parott1 said:

I posted a pic above and think I got the backstitch pretty close.  I added a shim to the bottom of the stitch nacelle and it seems to have corrected the problem 

I'm glad to hear that you have worked out your problems with Biothane. May I suggest that if you are going to be making a lot of Biothane tack, you consider investing in a Campbell Lockstitch machine?

[Singermania]

Ok sounds like you have it solved, my point about warranty and dealers is that its best to ask the dealer before making mods, a typical line in a warranty document outlining things NOT covered would be....  3) The machine fault results from dismantling, repairing and assembling of the product without the authorization of the Company.   Obviously its your machine and you can do whatever you want, however if it went belly up at some later stage and your dealer wanted to be difficult or was under financial strain might see it as a way of getting out of the warranty agreement.

Whilst there are people on this and other sights with a lot of knowledge they should think twice about giving advice to people to make modifications to new machines without the ok from either the manufacturer or the dealer.  Maybe its a bit like putting an unapproved performance chip in your car or truck and then finding the dealer is wanting to get out of covering your blown engine.