Instead of cutting remarks, I shall give you SAWS! And I will not bore this discerning audience with saws that everyone has seen and that are available at every second corner. Well, the second is a mass market item from Asia, but it comes with a special trick.
The first picture shows a Belzer 5076 jeweller's saw (top). But instead of the usual jigsaw blades, I'm using 0.5mm diamond coated saw wire from a local company as a blade. Now this should be called a 'sawsall'! That company manufactures automatic diamond wire saws which are used to cut semiconductor wafers and to make precise cuts in metallic parts for quality control purposes. Whenever I need a length of that wire, I drop by their place and have not paid a cent yet for 1 to 3 meters of the stuff. And it makes amazingly clean and controllable cuts!
The second saw is a Belzer 703N Schluesselbartsäge 'Key beard saw'. It uses a modified form of PUK saw blades, which are tapered towards the tip.
Most of you will have seen this cheap and ubiquitous, and yet useful saw in the second picture at one time or another. The blades, including the large one, can be fitted in the normal position as well as towards both sides, with the big one also usable oriented upwards in relation to the grip. But this saw becomes even much more useful once you realise that PUK sawblades are perfectly usable in it with a slight modification to them. For that, you just need to pare the non-cutting side of them back a bit at the positions of the tension pins, which is best performed at an electrical bench grinder.
Next come two types of multipurpose pocket saw, which are both able to use several kinds of blades from reciprocating electrical saws repurposed towards a manual application. The black one is from Würth, the other one is named PocketS with no discernable manufacturer. It will clamp the blades from Säbelsägen (sabre saw or 'Sawzall') as well as the T-shaped blades from electric fret saws (Bosch, others). This of course make a great variety of blades available for the use with it, which makes it well suited as an emergency kit saw.
Now we arrive at the really small saws. The lower one is a segment of fine PUK saw blade clamped in a small pin vise made from a leftover chuck and a handle of a broken Belzer screwdriver. As needed, the PUK saw blade can be ground narrower or even bent once for angled or twice for offset action. The smaller regular type of X-Acto knife (or any other craft knife/pinvise with a 4-segment chuck) can be substituted for the same use.
This little tool has actually rescued me (or rather the planned UGV demonstration) once really big time! I had to cut off massive 90° Combo-D high current connector pins, which were already soldered into a 10-layer PCB, which was in turn already mounted into a special housing, in order to fabricate a cross polarity bodge correcting a layout error. as the connector's rear was well recessed in the rather narrow case, this was a dexterity test from hell out of a 'the night before the customer comes' effort, which I hope never to perform again in this way.
The other tiny saw is basically a pin vise too, which came with two types of saw blades. The one type looks like a regular wood saw blade en miniature and is probably intended for soft wood and plastics. The other type is a very stiff wire pin, around which another wire (probably a hard alloy) is wound in a spiral. I could not make out how it is attached, i.e. soldered or welded, but it cuts thin aluminium as well as GRP with astonishing ease.
enjoy your serving of toolpr0n, more is in the making!
Remark: what is called PUK saw in Germany is known to others as a junior hacksaw or electrician's saw. It has tensioning pins fixed to the blade at a distance of 150mm and is often equiped with a folding handle.
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Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 18842395 times)