Constabulary

https://www.np-z.com/shop?search=LAX81 Maybe look for LAX81 If you have a business with valid VAT number you can order here: https://shop.lebri-online.de/de/searchresults/?group_filters=0&search_keywords=Nadel+System+81 https://www.naehendirekt.de/System-81-LAX81-Preis-pro-Karte-a-10-Nadeln-VPE-10-Karten

I heard good thing from these folks but have to admit I never used their products. Not sure if the products are available in the UK. Maybe google translation of their website gives you some useful information: https://www.lederzentrum.de https://www.lederzentrum.de/farbkarte.html https://www.lederzentrum.de/alle-produkte.html EDIT: seems they are: https://www.colourlock.co.uk/

Chandler just put their names on Adler machines. On the Dürkopp-Adler website you find a number of authorized dealers. They should have the parts you need. (scroll down here) https://www.duerkopp-adler.com/de/kontakt/vertriebspartner/nordamerika

sounds like a 200-1 or 200-2 - do you have measures?

do you have a 200-1, 200-2 or 200-3 (lager prefix = lager hook) CLAES is still making the bobbins so you should be able to get them from shoe machine dealers or other sewing machine dealers. If not check with CLAES, I once visited the plant and bought some spare parts straight from them. Nice folks, really! But shipping from Germany to to Sweden probably is a deal killer. https://www.cl-maschinenbau.com/de/leistungen/naehmaschinen.html Some (not all) parts from the latest 8346 are still the same as for the 200. When you check the 8346parts list all parts with 200 prefix are still the same. However the new hooks could be slightly different (thats what they told me).

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?