Hi
I'm getting slightly confused about marking out - in particular the use of blue dye to paint the metal so the lines show up. The last time I did this was over 40 years ago, so my memory may be playing tricks, but I seem to remember using a paintbrush to apply the dye, then leaving it for a few minutes to dry before use, finally cleaning with (paraffin?) when the cutting had finished.
Looking through many websites for clues, none of this seems to be mentioned on any of the beginner projects - but there is an occasional mention of felt tip pens, presumably to highlight lines after marking. Also, the only supplier in the UK I can find is Chronos who charge over £8 per small bottle. Can I assume, therefore, that there is a (better / different?) way of marking out these days?
I did buy some Marking Blue, but I think this is a different product for checking fits rather than for marking out - or am I wrong on this also?
Sorry for the very basic questions, but I haven't touched any engineering tools since i left school, and I'm really starting again from scratch.
Thanks
I'm getting slightly confused about marking out - in particular the use of blue dye to paint the metal so the lines show up. The last time I did this was over 40 years ago, so my memory may be playing tricks, but I seem to remember using a paintbrush to apply the dye, then leaving it for a few minutes to dry before use, finally cleaning with (paraffin?) when the cutting had finished.
Looking through many websites for clues, none of this seems to be mentioned on any of the beginner projects - but there is an occasional mention of felt tip pens, presumably to highlight lines after marking. Also, the only supplier in the UK I can find is Chronos who charge over £8 per small bottle. Can I assume, therefore, that there is a (better / different?) way of marking out these days?
I did buy some Marking Blue, but I think this is a different product for checking fits rather than for marking out - or am I wrong on this also?
Sorry for the very basic questions, but I haven't touched any engineering tools since i left school, and I'm really starting again from scratch.
Thanks