Bob Mc | 11/03/2019 16:40:59 |
231 forum posts 50 photos | Hi Ian T...writes... "Please don't take this as criticism Bob Mc - but I break a lot less blades when I use the saw vertically and just let it drop into the work on the down stroke (e.g. let the saw do the work) etc." No I certainly won't take it as criticism and I am only glad to hear how others tackle these problems... I will give your method a try out and see if it does the job any better, my only concern is that you say you use this method for brass which is a lot softer than mild steel...nevertheless thanks for your post ... if it works I will give due credit. rgds..Bob. |
IanT | 11/03/2019 17:20:08 |
2147 forum posts 222 photos | Yes, mild steel is harder (and slower) to cut Bob - especially when it's quite thick.. I've generally never been able to file/saw straight I'm afraid - but even I can get fairly good results 'freehand' with a piecing saw in brass. Provided you don't force it, it's quite easy to guide the cut. This is 2mm brass and I'm about 0.5mm above that line. All I then had to do was line a toolmakers clamp up with the scribed line, lay it in the shaper vice, remove the clamp and a few strokes later I had a nice edge to final dimension. However for thicker material, it's much harder to do I agree - so for small straight cuts, I use the shaper to guide a Junior hacksaw blade - which works well - although of course it's not an option for most folk. I've recently made a new 'finger' for my finger plate (thought the "temporary" one I made some 10-12 years ago should finally be replaced with something a bit prettier). It's 3/8ths thick mild steel and using a hand saw I would have been all over the place. Doing it this way, it cleaned up quickly (and to size) - which probably would not have been the case otherwise!. Regards, IanT |
Ian S C | 12/03/2019 11:00:12 |
![]() 7468 forum posts 230 photos | Or you can do it this way with a junior hack saw blade , and if you use something more powerful that a hot air motor with about 5Watts available it will chew through a bit of 1/2/12 mm rebar in less than 5 minutes, takes about 20 minutes with the hot air motor. I have used it to cut the metal when building another motor, and when repairing the motor it was first designed for. Ian S C |
Bob Mc | 12/03/2019 11:52:22 |
231 forum posts 50 photos | Hi Ian S C ... Are you saying you have an engine driving that saw! ...it does look as if there is a boiler and a flywheel in the picture. If that's the case its great if you have actually made and engine to do some serious work, would definitely like to see that running...! Bob... |
Ian S C | 14/03/2019 08:45:08 |
![]() 7468 forum posts 230 photos | Hi Bob, sorry no video, but yes it does work, it's something akin to watching grass grow/paint dry, but I like to make my motors work for their living, mostly on an alternator or generator, or a water pump, and one is fitted in a boat. Ian S C |
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