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Hi all! I'm brand new to machine leather sewing so please excuse any stupid questions I bought a Seiko STW-8B - which I have since found out is often sold as a Consew 266R. It was sewing OK but had some issues with reverse stitch length which I think I solved by replacing an after market bolt which was fouling on the main shaft. I now have forward and reverse hitting the same holes - which took hours but was worth it I think. I have also fitted a servo motor as clutch control is apparently wAY beyond my skill level :D I still have a few issues which I would really appreciate some advice on. I'm going to list them all in one topic but happy to split if moderators prefer: Presser foot height and needle bar interference From watching @Uwe's brilliant video series I can see that it is possible to sew through 3 layers of 8/9oz veg tan - I would love to try this but I cannot get the presser foot adjusted high enough to even fit the material under. I have tried all the adjustments I could find on this site and elsewhere but it seems to be maxed out at around 9-10 mm on the knee lift even though the manual suggests it should be 0.5 inches - i.e around 13mm. Even when I do get 10mm of leather under the presser foot, when I try to cycle the needle, the needle bar fouls on the vibrating foot - I'm only using hand power to test this but it seems there would be interference and damage if I tried to run it under power. I have the standard 135/17 needle - do I need a longer needle and then adjust the needle bar higher and reset the timing? The vibrating presser foot seems to be off centre in relation to the needle. The needle sits dead centre in the feed dog hole but if I line the vibrating foot up straight in the middle of the lifting foot, then the needle is very, very close to the left edge of the vibrating presser foot hole. I can remedy this by rotating the vibrating foot slightly to one side so it does not run true from front to back - but surely that isn't correct? The timing seems to be correct (seems!!) but in reverse it is skipping stitches every time - and I'm pretty sure the top thread is just being missed by the hook. Is there anything obvious i could have messed up or do I just need to check the timing again? Thanks so much for your help - I only discovered this website a few days ago and I am hooked - so many helpful folk out there! Mb

Hi all, I've been a fan of this forum for a while. Thought my video on converting a Consew 226r to a large bobbin (Juki-lu563) might be of interest. https://youtu.be/LE87ukxP2mw Hope this helps others out. BRE

I have a Consew 226R machine. My problem is my bobbin thread gets caught up when I place the needle down to turn a corner or slow around a curve in my leather. I changed the original timing belt awhile ago and recently tried to time the hook and needle, by following a YouTube video. No Luck!! Now the machine isn't picking up the bobbin thread at all! I'm just getting stitch holes from my needle. Can someone tell me how many rotations the bobbin case makes for a stitch? I am grateful for any help I can get.

Hi guys, I need your expertise on this timing issue I am having. Seiko stw8b. Stitches fine ,,however, at the absolute highest point on take up lever the timing arrows are a tiny bit off. Thing is, if I take the belt to the next notch in line, then they're a tiny bit off the other way !!! I need a notch in between notches to be absolutely perfect. Hoping you guys can help me out thnx alot.

Hi guys, SEIKO STW-8B MACHINE can someone pls help me out with this. I recently changed feet from quite bulky ones to A much slimmer set and not as deep. Now I need to lower the outer foot as it now barely touches at its lowest point. Can someone tell me where is the screw to lower and raise it.? Im not looking to increase the pressure just to be able to lower the foot.. I wasnt able to decode the manual. thnx in advance.