CNC Postage Goodies / Ball screw SFU1605 BK/BF12 FF/GK12

So I’ve been sent some CNC components from Banggood. I’m just unboxing them. They are a 750mm SFU1605 Ball Screw with BK12 BF12 Bearing End Supports, a 6.35mm or 1/4 inch to 10mm coupler. I also got a different type of bearing end support called the FF12 GK12. And there’s also the nut seat or housing block which you can mount things to like CNC plates. I got these parts so that I could start to think about how they could be used to build a new CNC machine. I know I haven’t even finished the last one that I’m still trying to upgrade. I am in the process of re-building my leadscrew and v-wheel based CNC machine with newly designed parts which will be cut from acetal. And once that is complete I will work on something a little different. On first impressions the items came typically packages and these are solid pieces. The postman would have had to really work hard to damage these. The ballscrew has a 5mm lead – this is indicated by the numbers after the SFU designation. So 16 is the diameter and 05 is the lead.  You can get longer leads but these are often become a lot more expensive. The bearings in the end supports have a 10mm inner diameter. These are quite tight against the ball-screw ends. So I will either have to make some kind of support to rest against the bearing and hammer or heat the bearing up so they expand. The housing block is quite large so it will not fit in the space between a c-beam aluminium extrusion normally but I have an idea about getting around this. Anyway I thought I’d just tantalise you with some new components and the prospect of a new CNC machine. It’s still going to take some time and I do need to finish the current machine that I’m working on. I’m also getting distracted with 3D printers – I’ve got two on the go now. I’ve been trying to get my head around how these things are assembled and work. Anyway something to look forward too after the summer. And if you want to know a little bit more about the components you can find the links to those items in the description below.

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