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Tony, this is just to say that I follow your postings with great interest. You have such a fertile mind dreaming up these interesting engines. John

Thanks for the links, makes control so much easier.

Please follow-up with the hall effect sensor to potentiometer conversion.

Steamchick, I couldn't agree with you more, freedom!!

My barograph mechanism has a fair amount of 'stiction' in the pen movement and so I wonder if replacing the simple sleve bearings for point bearings as used for escapement wheels would be worth doing. I realise that the friction between pen and paper is one source of stiction but feel that the...

Interesting coincidence. I am about to advertise a digital height gauge on eBay this weekend. Looking for £30 plus any postage estimated at £8.60 John

Sorry folks, I forgot that this is a widely read site. Yes eBay UK :rolleyes:

Just type Stevenson's blocks in the eBay search box. John

This is just a heads up to say that I have placed my blocks on eBay as I no longer have a mill or lathe. John

Good luck Dave John

Hello Tony, good to see you posting again John

Hi norman, I too have had a face full of cutting oil but oil from a bearing is a new experience! I do agree with you about the motors. I'm used to induction motors and their constant speed but when needs must I'll use what ever seems best if it is to hand. A little thinking time now to take...

JCSteam, many thanks for your input, I do think that with a more powerful motor setup things would be much better. Turning small diameters is not a problem but anything more than say a couple of centimeters in diameter really loads the lathe and progress becomes very slow. My flycutting was...

Many thanks for the continuing interest in my project. John

Alas, now that I have some lathe tooling so as to use the lathe in earnest it turns out that it is very underpowered. There is up to around a 10 times speed reduction using the pullies but the 100w motor just isn't powerful enough even though other people suggest it for these small lathes. The...

Norman, you amaze me with your depth of knowledge. I know that my Wizard isn't an Adept but they are very similar. So I am collecting what information there is about them. I have been flycutting this morning to finish the tool holder in the last photo. The lathe did well but still needs a bit...

Here is snother attempt at a tangential tool holder. I think this one is more acceptable. However there is a mistake, the screw is on the opposite side :-(

Hi JC, thanks for your ideas, I really feel lost without my mill. Haven't done work like this using a lathe before. Not sure if the Wizard is up to a bit of milling but I suppose there is only one way to find out. Having been used to a W180 lathe, band saw, Formit, BFE mill and a few other items...

I can see what you mean about the possibility of chatter. It was mainly to angle the tool bit wrt the top slide into a side and face cutting position at the same time. It certainly feels rigid and is an approximate copy of the shape of the Diamond tool holder. I didn't realise the amount of...

I cobbled this together today, sorry it is a bit rough looking but a clean-up will improve its looks. The 3/16" tool bit hasn't been sharpened, it is just there to aid the comstruction. Ths cranked holder is necessary to get the tool tip at centre height. Perhaps tomorrow I'll be able to try...