Member postings for Julie

PM sent Robbo

Hi,

Due to an error in the purchasing dept (i.e. whilst away I didn't manage to renew my subscription in time) I am a few issues short.

So Does anyone have any of the following issues for sale?

4490,

4491,

4494,

4495,

4496,

4498,

4499

I have managed with the "help" of ebay and back ordering from MyHobby store to fullfill most of my missing issues, but for those above.

Looking for good condition (to go in binders)

Thanks

Julie

My I be the first here  to congratulate Dougie!

This was his first time entering any competition, yet this past weekend at Harrogate, he achieved something with every one of his models!

His Civil War cannon was Highly Commended!

The  Anzani engine and Coastal each received a third

And best of all the stunning railway gun received the Barry Jordan trophy as best  in show!

Fantastic!

I don't know if anyone here spotted them, it took us a second look around to find them - and we knew they were there! It was a pity really as it was a bit out of the way (on the Friday - I assumed they were displayed in the same place each day).

Well done Dougie - any good at riveting?

Julie

Edited By Julie on 13/04/2010 21:29:51

 

Edited By Julie on 16/03/2010 23:25:49

Edited By Julie on 16/03/2010 23:30:09

There are a number of reasons (some of which may not be true!)

1) The accuracy - linear encoders are generally 5 microns resolution - often a digital type scale is 0.01MM - 1/2 the accuracy (Not always true!)

2) Linear encoders are usually well protected against water/suds/oil, even the slightest bit of damp in the digital scale stops it working - and this could be 1/2 way through a cut

3) The DRO itself generally has many features beyond simple x,y,z readout.

For example:

The ability to set a number of zero (datum) points - allows you to work from one datum for say the centre of a set of holes e.g. 6 holes on a 1" PCD , followed by another set 3" to the right, and yet still maintain the true datum of the workpiece.

Automatically allow for tool size - instead of calculating the cut you need to do, set the cut you want, include the tool size, then when cutting; work towards a zero target rather than 3 5/32" x 7 35/64" - plus your tool size of 12MM.

Allows use of metric tools with imperial dims (or visa versa) 

Calculates for holes on a PCD, angular sets of holes, pocket milling, milling radii etc. etc.

The scope really depends on the DRO you get - but it is a lot more than just showing x,y,z.

Edited By David Clark 1 on 22/02/2010 07:52:05

Hi,

Has anyone any experience of HQSS tools – notably taps and dies?

I am familiar with HSS, but not this material, I cannot find anything other than very evasive details of what it is.

The only one commonly stated property is that it is 30% tougher than HSS, however without reference to other characteristics this is meaningless!

If I assume it has the same strength as HSS, then it is just saying it is less brittle (higher strain failure) than HSS, if this occurs after the yield point that isn’t much use for a Tap!

Edited as it missed the last two lines off! - ?

Edited By Julie on 13/02/2010 14:15:15

Edits to add last two paragraphs.

Edited By Julie on 07/02/2010 10:29:28