Brass micro tubes and how to cut them

[xan]

My stock of plastic cotton swabs is running low, and I?m going to switch to something else.
For those who use brass micro-tubes, what diameters do you use?
And most importantly, how do you cut them in an assisted and consistent way?

The technique of rolling them under an X-Acto knife seems unreliable for precise sizing, inaccurate, and quite tedious... There must be a better way...
thanks to share your experiences...

Xan

[s.e.charles]

https://youtu.be/0v1Isg3di-Q?si=W3UYxvJxdiyVlyab

[xan]

I 'am afraid micro-tube we use are much more thinner and much lore shorter.
hard to apply this metod IMO,
Anyway thank you for sharing this video charles.

[Berman]

 Perhaps, build a cutoff saw with a high speed rechargeable battery powered rotary tool. These are about half and inch in diameter by six inches long. This would be hinged to a stable base with an adjustable stop for cutting consistent lengths. Dremel and others make thin abrasive discs.

[uncletony]

Simple. Make a jig to cut with X-Acto or similar. It is not hard: three or four strokes with a sharp blade is all it takes. Bertl (Umlaufmotor) made a bunch of multi size cutting jigs out of soapstone and gave them out to friends years ago; it is a workhorse on my bench.



But you can fashion something similar out of all sorts of things, depending on what you have access to. Sheet styrene works well in a pinch.

For extremely precise (and small) lengths build up sheet material to the desired tube length and bore a hole the diameter of the tube. Insert a piece of tube and cut off flush (super fine razor saws work well). If necessary file or sand so the tube is perfectly flush. Viola.