Constabulary

10mm is not the stitch length. Rather consider it just as a scale. From my experience the model 200 (which you have) makes 6mm Stitches at max. If you need a manual in English, I once translated one from German language and edited it a little bit (original source was an RPX manual but the 200 class are very similar). Send me a PM if interested.

What CLAES model do you have? From the 200 / RPX onward there is a leather (or later) plastic block under the stitch length adjuster, make sure it is is present. If not feeding make sure the "Transportkeil" (see parts list) is not popped out of place. It should "hang" in the rim of the needle bar bushing in which the needle bar is going up and down in. Just notice the the EDIT so forget it.

Maybe this GA5-1 manual is a bit clearer - the GA5-1 is pretty much the modern version of the 45K. 06_Techsew GA5-1 manual.pdf

Maybe poor internet connection? Clear browser cache & cookies? Update browser? No issues on my end with Firefox 106.2 (just got the update)

Read the manual - the thread on the lower tension unit is not going between discs it is wrapped around the pulley.

I have two manuals in German language but not for exact this machine but they are very similar. Send me a PM with your email address please if interested.

If the machine works w/o removing the bushing better leave it where it is. If you break something there will be no replacements parts for these old Dürkopp patchers - or - if you find them - they will be not cheap.

maybe you can post some links I guess you mean GUETERMANN threads (or in german GÜTERMANN) https://guetermann.com/en/

here is a manual that will work for the 171 subclass too Singer 29K71, 29K72, 29K73.pdf

You can make the aftermarket ones work. I did that a few years ago on a 29K1. You may also need the feed motion Ring if your is worn. I have compared the parts here: https://leatherworker.net/forum/topic/60554-29k1-pre-christmas-barn-find/?do=findComment&comment=390874

I found something: You have to loosen Screw D before you adjust the stitch length and tighten again when done.

see above post, I just edited it. Maybe the parts lists help to figure the function. Or maybe the REXEL Co. can provide a manual. I´d check with them. This is from a list I downloaded

I would tilt back the machine and check what the allen key is doing... EDIT: You can download parts lists here. Maybe they help you to figure the function. https://rexel-com-pl.translate.goog/content/33-katalogi-minerva?_x_tr_sl=auto&_x_tr_tl=de&_x_tr_hl=de&_x_tr_pto=wapp

you will not find many oz measures in the EU. Grams per meter or square meter is more common. https://www.esvocampingshop.com/de/outdoorstoffe-zeltstoff/baumwolle/ https://www.stoffkontor.eu/stoffe/canvas/ https://www.stoffe-zum-leben.de/köper-canvas-segeltuch-zeltgewebe/

So how much speed reducer reduction will this motor / needle positioner now accept? 1:2, 1:3 or even more? Does it matter how big the motor pulley is? Usually these motors comes with ~75mm pulley but most LW swap it to 40-50mm pulley. I´m just a user but not an electronics geek so this question may sound stupid (maybe not). Is there (probably) a way to adjust the "reduction acceptance" (I have no other word, sorry) in the motor management menu? That would be a great feature.

looks like a plain drop feed sewing machine but a blurry 7 second video is not very helpful to clearly ID a sewing machine. Do you have a link to the full length video? BTW I would open a new topic for this request cause this clearly is not a 441 type leather machine

You are using a fairly thick needle for a fairly thin thread as it seems. Check this needle thread cart for finding the right needle / thread size combination: https://www.tolindsewmach.com/thread-chart.html This is a GA5-1 Chinese made machine - basically a modern version of the Singer 45K Here is a manual and parts list, hope this helps : 06_Techsew GA5-1 manual.pdf Techsew GA5-1 Parts.pdf

Global was probably the seller / distributor of this machine but not the manufacturer. They also sell used machines. I would assume a Minerva 72401, 72405 or something in between. EDIT: kinda like this one (scroll down): https://maszynyobuwnicze.wordpress.com/maszyny-szyjace-2/

lowering the needle bar just a tiny bit sometimes helps EDIT: BTW maybe this video by LW member UWE helps to figure issues with reverse:

We do not know the robe or the size of the piece or thickness of the leather or what it should look like when finished but generally sewing a thin layer of what ever onto a piece of leather should be technically possible. Why not?

or as a dealer / distributor to sit down for 1 or 2 hours and compile one. That would reduce customer headache and questions - I guess.

We do not know how your machine is set up and if you have a circuit breaker on your machine or not. No matter what when you leave an (especially older) electric deceive plugged in I would recommend a circuit breaker or a power strip equipped with one.

So when your bobbin is empty and you replace it you have to pull up the bottom thread, right? How would it work w/o removing the work? EDIT: Huh - looks like the guy in this video does NOT pull up the bottom thread when he starts sewing with his 205RB (Minute 10:00 onward) https://www.consew.com/View/Consew-Model-205RB-1 Interesting - seems to be working. Not sure why but looks like it does. So when looking at the Video I would assume you just change the bobbin as shown and go on with sewing. Seems there is no need to pull up the bottom thread on this machine - for what ever reason.

I´m late to the show here but in case you buy the goods on Ebay then (usually) Ebay charges you the VAT automatically and in some cases even the import tax and forward it to the Gov. Then your seller gets a code he has to write on the address label so the carriers know VAT / Tax is paid. Thats at least what I experienced. Like Ebay or not but when it comes to international purchases Ebay often the easiest way to buy goods from foreign countries. Check this: https://www.gov.uk/guidance/vat-and-overseas-goods-sold-directly-to-customers-in-the-uk

guessing it is Tennessee Attachment Co. Inc. https://www.tnattachmentco.com