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Yes I am glad its not a Colchester lathe with Gamet bearings @£4500 each
Hi Baron,When I had my Super 7 I encountered this problem early on and in order to keep some stability in the temperature I used 2 X 40 watt light bulbs wired in series, these were placed under the lathe bed. The lathe cover was then draped over the lathe followed by an old curtain. It is surprising what heat these two bulbs deliver, bearing adjustment was carried out one morning after using this set up for a few nights and I never ever had a tight spindle from then on, nor was it too loose during a workshop session. The bulbs were dispensed with during the summer months.As regards marking I use the end of my rule and a scriber, the marks are dead in line and it is not possible to return anything other than dead in-line.My best regardsGray,