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Hi all, I feel like I have been given a bit more than I can chew. I ordered a Seiko CW8B2 cylinder arm machine. The supplier provided it with a Ho Hsing i90M. Clearly it was my own stupidity assuming the controller would be basic and simple. This is my first industrial machine and the controller is way too complicated (to be fair, I live in Hong Kong and communicating with the seller was not that easy). First off, the controller is mounted to the motor and away from the user so you need to go around the table to make changes - I didn't expect that and I would have thought the large controller could be turned to face me but it seems that it cannot. It would be great if I understood how to make adjustments on the controller (the manual is quite complicated). Right now I set it for a very low speed - like 2spm (getting to that setting was a miracle). However, all I really want to set it to do is set it for slow for light depression of the treadle and increasingly fast for increasingly heavy depression of the treadle. Does anyone have a clue how to set this controller for this? Does anyone else have this motor and controller or a similar Ho Hsing model? The manual is here: https://www.hohsing.com/wp-content/uploads/download/i90m-manual-tw-en.pdf Many thanks in advance for any assistance in plain English.

I've bought Jack Jk-561A-1 Servo Motor and I'm really happy with it. But there is a nice modification to make, good for a newbies like me, to make the servo motor even more predictive. I've nowhere found similar idea, so I've decided to share. I made this mod with the clutch motor that was previously installed on my machine, and it was running quite good. But as the leather does not like mistakes... I've got a servo. Returning to the point, here are photos of the modification. The cost of it is about $2. Only downsides I've spotted by now are: first - You can not "back" the treadle (that makes the lever on the motor controller go up. And for me this is not a problem), second - when you lift the treadle and then it drops down, it can pull the controller and sew a stitch (changing the lever spring should fix it). The main thing, the mod does is that for the 17mm movement of the controller lever You need to push the treadle by 35mm. Even with motor set to the highest speed there is no problem for a newbie to control the speed from slow to full. ( I hope it's all clear, as English is not my native language )