Yet another Denford for the collection (Triac Retrofit thread)

[m_c]

The enclosure finally went back on a couple nights ago :-)

There was a bit of a delay getting the servo for the spindle, which meant it got delivered just as I entered my crazy time of year for events, and business sales were higher than normal, so I never had much time to work on it.

The spindle mount was done ye olde fashioned way on the manual lathe. I started with a bit 4" round alu, and after a bit time spent spinning handles, resulted in lots of swarf -


A 110mm square plate was cut and then turned to create a flange on one side to fit the spacer, and a recess on the other to fit the servo. It was then drilled and counterbored to accept 8 M5 bolts. 4 would of done, but 8 looked better!
The mount was then test fitted -


Things then stalled waiting for the servo motor, but when it arrived, assembly could begin in earnest.
The extension shaft was cut to length, and a circlip groove machined in to locate it in the bearings. The flexible coupler was then installed -


And a new taperlock timing pulley on the opposite end-


It was then bolted to the machine, and the servo attached-


The whole assembly sits at roughly the same height as the original servo, and the only modification required to the cover, was a hole cut in the side for the servo cable connections, which can be seen in the first photo. I'll get a cover made up for them at some point, but I want to work the machine for a while first to monitor how hot the servo gets, as I may add a cooling fan.

It was then a case of wiring and tuning, which I'll save for another post.