digital vs dial calipers for reloading
- Thread starter Blacknsilver
- Start date
Hornet 6
Well-Known Member
Far from it, I have seen whole batches of machined parts in the scrap bin all because someone trusted that their digital calliper was right.
Thing is they nearly always are, it is the zero set in absolute or incremental that catches people out, basically user error.
After years of using 6 inch digital 8 inch dial and 12 inch vernier, these days I just pick the 12 inch vernier and know it is going to be 100%
right, if the dimension really matter use a micrometer (and so the argument starts again, mechanical or digital)
Neil.
I meant idiot proof from the point of view of reading of course. Some people seem to have a problem with vernier scales.
I do re zero as a matter of course every time I turn them on and often check through the session...but I feel for your man with the binful of scrap...I haven't made exactly the same mistake, but have been quite creative in making kick-myself-after-the-event blunders of my own over the years.
In the workshop I also use a 12" vernier most of the time...apart from anything else it is the one that is easiest to see amongst the muddle of the measuring drawer! The digital ones I have are not suds resistant so they are used at home and mainly for reloading purposes.
Alan
I do re zero as a matter of course every time I turn them on and often check through the session...but I feel for your man with the binful of scrap...I haven't made exactly the same mistake, but have been quite creative in making kick-myself-after-the-event blunders of my own over the years.
In the workshop I also use a 12" vernier most of the time...apart from anything else it is the one that is easiest to see amongst the muddle of the measuring drawer! The digital ones I have are not suds resistant so they are used at home and mainly for reloading purposes.
Alan
I still have and use the 8" Mitutoyo vernier caliper is was presented with when i finished my apprenticeship in 1981.
Ian.
Ian.
EN24T this morning.....went duck shooting in the afternoon...
Tim.243
Tim.243
That's a nice lot of toys...just lacking a few bendy and bashy ones...
Alan
The big shear and press brake are further down the work shop!! John has done well to kit his self out, I pushed him to take the plunge when the firm he was working for were closing. I sorted the crane lorry’s for him to move the kit as he was a bit over whelmed with it all. Nice to keep the Essex engineering flag flying....
Tim.243
Chasey
Well-Known Member
I did my aprentaship at Mullards in Mitcham. (if you dont know them the R&D was done there for VHF video and the CD player)
The factory was so big if you wanted to go to the inspection room you drove there
Its now a housing estate
I finished my time at Phillips on the Purley way in Croydon. This was in its day the largest tool room in europe and had the first ever electronic CNC controled wire eroder.
When I left it was down to 12 toolmakers
Its now and industrial estate for PC world and simila outlets
I then moved to Boots Products in Ham Common Richmond where we did works for the British Aerospace plant about 500m up the road.
Both now housing
I could see the writing on the wall and left in the 90s.
The last tool I made was the progresion tool for the L/H window winder mechinisum for the Vaxahul Cavilear
Middlebridge
Well-Known Member
I started off with a Mitutoyo digital caliper then bought a couple of the £15 cheapies as spares. Side by side, I could see no difference in accuracy or consistency until the Mitutoyo failed.
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