Con

Hi, will not tell me the thread size nor approved suppliers for thread but they have informed me that the cost incl post is now $380.... loosing confidence in their products...

Hi, I just got a reply that includes " The thread you can use 6shares or 9shares , both are ok, the 4A is stiting the upper soles, " = confusion... I reckon she means 6ply and 9ply but that does not actually give the thread diameter... It may be the fault of googletranslator!!! I will reply with shorter sentences... Thx Wizcraft - the hunt for accurate info continues...

ah, the SK - not cheap but also does a rope stitch that looks bulky on the midsole - my hand stitching uses a 2 x 1mm waxed thread bypass knot, the Robin RC-32-4A does a lock stitch and that is my preferred option. Jimi - the SK from about €1k and the RC-32-4A at €330 - I go for the RC-32-4A - I want it to use 1mm waxed cord but I do not know if it can take it. If Robin replies I'll share it here. Thanks again Jimi. Regards Con

Thanks Bert. You have given me the keys to better understand the challenge. I had found that Toledo webpage before but I could not understand how to use it. The .828mm needle diameter of the 330 needle does not suggest that it can sew with 1mm thread. I do not know if the RC-32-4A will take the needles you describe. I have emailed Robin Industries again - I'll share their response here. Thanks again.

Hi all, thank you for the replies. I use a Junker & Ruh SD28 for outsoles with 1mm twisted waxed thread. I clean the bobbin from wax buildup after it gets empty. One bobbin does two outsoles with thread left over. The Junker & Ruh SD28 sews the rubber outsole to the midsole very nicely, it leaves a topstitch that 'sits' into the rubber a bit but as it is a lock stitch and the shoes/boots are made on a last, the thread does not touch the ground unless the sole is worn down by 3-4mm - it should have been resoled before that wear / abuse. The needle size of the RC-32-4A is quite confusing at 45x230. Questions about this to Robin get no reply - that is why I asked here. It is unlikely to be for 0.5mm thread as the image of shoes on the page for the insole stitcher also show the soles stitched and it looks at least 1mm / 2mm - see pic attached. The attached image below is of an outsole sewn to a shoe upper - I intend to sew a 3 or 4mm veg tan midsole to the upper with a RC-32-4A and to then sew a rubber outsole to the midsole using the Junker & Ruh SD28. I currently sew the midsole to the upper by hand and the outsole to the midsole using the Junker & Ruh SD28. The small bobbin capacity of the RC-32-4A may be sufficient for 2 midsoles, but even 1 is ok. I make modern wearable versions of bronze age to medieval age Irish shoes and boots based on my researching of museum grade artifacts. I can actually produce this footwear completely by hand at home. The hand sewing of the midsole to the one piece upper is 'unnecessary hardship' and the RC-32-4A looks like the solution my small scale plan requires. I do not want to have to guess the thread for the 45x230 needle as I cannot buy thread in Ireland so have to rely on the internet - flat braided is often sold as round twisted... I'll try Robin again. Thanks for the support.

I am thinking of buying an insole stitcher – a manual basic machine listed as RC-32-4A (see pic) from www.robinindustry.com Bobbin arm at 20mm thick. On inquiring I am told the needle size is 45x230 but I'm not familiar with needle to thread size options... I am looking for some guidance from members who have knowledge about this needle to thread challenge. Twisted waxed linen and sometimes polyester thread of 1mm round is what I use when hand sewing a midsole to a one piece upper and this works fine. If I use the same thread would this be tight or sloppy as a lock stitch in a hole made by a “needle size of 45x230” is my question. Any guidance appreciated.

I am thinking of buying an insole stitcher – a manual basic machine listed as RC-32-4A (see pic) from www.robinindustry.com Bobbin arm at 20mm thick. On inquiring I am told the needle size is 45x230 but I'm not familiar with needle to thread size options... I am looking for some guidance from members who have knowledge about this needle to thread challenge. Twisted waxed linen and sometimes polyester thread of 1mm round is what I use when hand sewing a midsole to a one piece upper and this works fine. If I use the same thread would this be tight or sloppy as a lock stitch in a hole made by a “needle size of 45x230” is my question. Any guidance appreciated.

Hi, I have been using a J&K sd28 with size 5 needle and 1mm round waxed thread with great success. For top and bobbin thread= it is great. I clean wax from the shuttle every time I want to load a bobbin. I'm going to try 1mm braided thread for top and bobbin next... I'm sewing 3mm veg tan onto 6mm Dainite soles and with the tensions set right I am getting a stitch to lay into the rubber - not a groove but not on the surface either. Regards Con

I'm looking for a shuttle and bobbins for this great machine I found this link https://www.bootmaker.com/Junker_Ruh_Manual.pdf My J&K sd28 was working great but I need a replacement shuttle - I'm in Ireland, Regards Con

Hi ABHandmade, " (it not stink, high strength of glue seam, elastic) " and holds leather to rubber = xlnt. Regards con

Hi, I'm interested in buying some Junker and Ruh SD needles. Any still available?

Hi, nice to read your adhesive test report. Thank you. Do you have any feed back on EcoSAR MW 116 NG rubber to leather? Regards Con

Hi all, great thread as it answered the question I intended to ask - No7 needle for 1mm waxed thread for boot outsoling. Need to find and buy a working Junkers and Ruh SD now. Regards Con

Hi, you indicated you might have a Junker and Ruh sd for sale = it is available? I am in Ireland. Regards Con

Hi - is your SD-28 still available? Regards Con