Machine Sewing molded cases?

[MikeG]

CDK - Thank you for the picture.  It helps to know what I am looking for.  I found this on ebay - not quite as narrow as yours, but it looks like it could be ground down a little if needed.

Edited Tuesday at 08:52 PM by MikeG
add pic

[toxo]

4 hours ago, MikeG said:

CDK - Thank you for the picture.  It helps to know what I am looking for.  I found this on ebay - not quite as narrow as yours, but it looks like it could be ground down a little if needed.

The inline foot is obviously worth a look. Using a zipper foot would be my first go to simply because I already have em.They come in right and left flavours. Another approach would be to build the flanges oversize and cut to size after sewing. 

[nylonRigging]

5 hours ago, toxo said:

The inline foot is obviously worth a look. Using a zipper foot would be my first go to simply because I already have em.They come in right and left flavours. Another approach would be to build the flanges oversize and cut to size after sewing. 

 

Your not going to find an in-line for your Juki compound feed. So just use or buy a narrow zipper like people mentioned above in posts . 441's are easy to find for in-line press-foot. You can also just cut and make your own in-line foot.

If you use a thin zipper press-foot, It really NOT going to matter much for your application . All that matters is if you have a 'full' flat heel on that thin zipper foot for good press contact. 
What I mean with a 'full flat heal' is one that does Not have a radius cut Heel . Your L-foot is mute anyway, and just going to float off the edge, because it not touching the material, and you have open boundaries on the left. The thin zip-foot is reallyNot in the way, and you can just cut it off and leave the Heel if you want and make that foot a in-line .
With an in-line press-foot riding back behind your center feed foot, and getting to those tight looking right radius curves. Your in-line foot is going to swing-off your stitch line and probably not even touch your material until you get around it and back to a straight-line stitch. So when you get to those R-turns. You needing to go slow and use your fingers to press and do a slow walk with the turn with center press-foot.
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What you Really NEED to do is trim/cut a nice center foot on the needle-feed, and that lets you walk tighter, and helps give you a nice clean visual. 
I just did one tonight on my 1541 for doing similar to what you asking about. It easy to cut and shape feet. I mostly use just a dremel and a grinder. Just keep dipping in cool water as you go so not to harshly over-heat the steel.
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Center Foot ( cut and shape ) that started out as a full size width/length, not split-toe Foot .


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Thin Zipper Foot with a full flat Heel . 


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Edited yesterday at 06:36 AM by nylonRigging

[Handstitched]

All of the cases i make have a bit of excess around the edge just wide enough for the (441 clone) machine to  sew without changing the foot.  Once sewn, i sand the excess off,then  edge dye, burnish,  etc

HS

[TomE]

I have a similar challenge sewing next to raised leather features on horse tack.  I've used the inline presser feet from Toledo Industrial machine and the narrow presser feet from Hennigan Engineering and Precision.  Both foot sets can do a good job.  The inline feet require backing out of square corners, in order to give the rear foot a place to land.  The narrow presser foot set is a bit wider but easier to maneuver.

Another strategy is to leave a wider margin around your raised piece, use a conventional foot set then trim the edge after sewing.  I don't like doing this for long stitch lines, like sewing reins with a raised feature in the middle of the length, because it's a lot of trimming and waste.  Think it would work fine for smaller items.

 

Here's a video of the inline presser feet.  https://www.facebook.com/share/v/18w1DUTZzc/

 

Here's a video of the narrow presser feet. https://www.facebook.com/share/v/1787akb5As/

 

Edited 19 hours ago by TomE

[Handstitched]

@TomE that's pretty much what I do, leave a wider  margin around  the edge. The excess gets sanded away and neatened up.

All looks quite neat when finished. 👍

HS

[MikeG]

Awesome info, thanks all!   I have ordered zipper feet to play with.  I had figured leaving excess for the foot to walk on and trimming later would be the way to go -- thank you for confirming that.  

Again, thanks to all - what an awesome site for REAL information from folks that have experience from doing.

Cheers to all and hope you all have a great Thanksgiving!