Being constructive…

18 01 2020

January is not really a month for big, long rides on the West coast of Scotland….it is wet, very windy and dark for longer than it is light. So, I’m trying to keep busy, making things.

1. The lathe. I’m trying to improve rigidity and motion of the various slides. I also wanted to move the milling attachment in relation to the chuck to give me a better range and position of the machine vice. So far so good. I put a bearing in the compound slide, a new brass gib as well and small bearings held by cup ended grub screws for the adjustment on the cross slide. I also altered the way the guides are held onto the carriage – by using longer grubs, held in with loctite and then nyloc, flanged nuts so it will hold its adjustment better. A steel plate was drilled to attach the milling attachment with M8 bolts and altogether I have a considerable improvement.

2. One of the purposes of improving the lathe was so I could make the Strap Deck ‘decaleur’ plate a little more easily. In order to make it slightly quicker to find the centres for the various holes it needs, I also invested in some transfer punches and transfer screws. The former are simply punches of various diameters so I can transfer from a drilled hole to a similar part and find the centres without having to accurately measure. The transfer screws are ace! little screws that fit different metric threaded holes and have a small centre punch that again can transfer to another part without having to measure. So good! unfortunately, my milling attachment still does not have the range for me to do all 4 holes with it mounted only once. I’m going to have to dwell on that as moving the part is time consuming and annoying.

3. I also spent some time hacking away at rhododendron and after many hours and sore limbs I have a new trail that forms a figure of 8 and keeps things interesting. Rhododendron is the Devil’s own plant though, it entangles everything and is irritant to skin and eyes. The leaves also seem to make the soil extremely slippery so I’m glad to be rid of at least a few hundred cubic feet of the crap.

4. A tool for removing the lock ring on 9point8 dropper posts. Read around servicing these posts (rarely needed and easy to do) and the one step folk complain about is removing the lock ring to get at the seal to grease it. I have used the work stand clamp to grip the part (it has no flats or other means to undo) but my Efficient Velo Tools Right Hand clamp is lined with leather and it doesn’t do it any favours. So, I made a tool to do it instead. First I shaped a delrin sheet, then drilled a hole and bored out a circle *just* smaller than the diameter of the lock ring. I then made a simple threaded handle part that compresses the delrin onto the lock ring and makes it easy peasy to remove. Next, I will counter sink the handles, and screw the delrin parts to them. I’ll also round the handles off and coat them in some sort of rubbery stuff so if (when?) I drop them it won’t take a chunk out of my frame.


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