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Hi Krypto Your picture made me look through my mic draw and I found I have a Mitutoyo model 159-211 combimic. Mine was acquired second hand (used) and is rather beaten up but still accurate with a very smooth action. There are no makers markings on the mic but when I looked at the case I was...

Its irritating Emconut! With the trend to surface mounted electronics and fragile multi-layer circuit boards, repair can be very hard/impossible - hence designed to be discarded. I still think the digital measuring "devices" are well worth the cost which includes having a supply of SR44...

I do as well but I find digital readouts to be very convenient. My first experience was with a digital vernier (mitutoyo again) and I quickly found I was saving loads of time not having to read the scales. I guess its a bit like using logs or a calculator - who used logs today. I quickly...

Hi krypto It is a genuine Mitutoyo mic. I put some very small marks on the mic and can confirm that it was repaired. It was an electronics failure and with the correct spare parts it shouldn't have taken more than 15min to repair Mike

Just to update you. I sent my 1-2inch Mitutoyo mic (293-345) to the UK repair centre. Was quotes £134 for the repair or 25% off if repair not possible. Mitutoyo invoiced me £100 including 20% tax and postage and returned a fully working mic. Irritating failure but much cheaper than replacement.

Ken Great video - long before H&S were involved. The sight of those guys in the foundry pouring metal with no eye protection is really scary!!!! Mike

In an earlier post I posed the question asking how to solve the problem of using a 20 year-old computer with a parallel port running MACH3 and a SIEG KX1. I don't recall getting a clear answer so my solution was as follows:- Continue with the parallel port on the KX1, purchase a spare computer...

Guys - I have a strategy moving forward. I have always run my main compressor to full pressure of 120psi but I realise that is not necessary. For most use I use a blow gun so 10psi is fine. I now fire up the compressor to around 10-20psi and that lasts me the whole day of occasional blowing...

Thanks Ken - if we are lucky we get 15-20psi on a good day. Out street pipes are very old (cast iron) and internally corroded so a pump would be needed. It can be done but loads of work. Since my tank is around 2 years old I'll wait a bit (3 years?) before reconsidering and in the mean time I...

Tony. You are spot on with your observation. Thinking about pressure testing a tank, I am not sure where I would start. I know no one who has ever done it and I certainty haven't over 50 years and 5 compressors. An endoscope could be used but what conclusion would you come to when you see...

Krypto - thank you for throwing light on the "incident". I think that will help folk sleep more easily at night - especially those who sleep above their shop! I had always thought (without evidence) that the first sign of failure would come from pin hole leaks long before a rupture. I guess...

Geoff I guess the majority of modellers simply order a compressor from the web and wind up with a branded (or not) unit manufactured in China. I find it is quite difficult to purchase any tooling or electrical device which is not made in China. I understand the reason for this and as time...

Minh......but is 20 years too old? I was proposing to make the automatic valve discharge whenever the compressor was powered up thus minimizing the amount of water. Having said that I really don't know what I am talking about when it comes to tank safety. Lets hope one of our more experienced...

I nearly dropped my cream cake when I saw timo's video!!! That was super scary. I subsequently found 2 more videos, one of a tank with no leaks but 40 years old having a 20% steel reduction and another with a pin hole leak which, on analysis, turned out to be very thin steel again on a 40 year...

I have been following the posts on silver soldering boilers and the safety issues. I would welcome advice regarding compressed air tanks. I have a steel tank (Draper twin cylinder compressor) with a 50Ltr capacity tank and a working pressure of 120psi. Water collects in the tank although this...

Andy. Yes you can ZIP them but many people don't like ZIPed files as they can be a security risk - but I guess that comment could apply to most attachments. Fortunately Microsoft allows you to save in many new and old formats. Interestingly I always save my AutoCad (2D) files in a 2000 dxf...

Me to but an A4 sheet of conversions is so much quicker and easier to use.

Hi Tom I didn't think the site would accept Excel files. It turns out that .xls will load but .xlsx will not. I removed all calculations so I believe this is a true copy of the pdf I previously posted. I find I use this chart all the time! Thanks Mike

Never heard of Korean inches - I can only just coup with American gallons! When I worked in the US I purchased my steel rules there - inches on both sides and tape measures in inches so no confusion. I now have separate rules in inches and metric. Interestingly I make fewer mistakes using an...

I think the metric/imperial discussion will go on for ever and I don't think that is a problem! I work with both systems and continually convert between the 2 systems. I usually keep my DRO on metric and my mics and vernier will switch. I keep a conversion chart on the wall and offer this as...