Gallery, Projects and General > Project Logs

Bandsaw Mod

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bogstandard:
Darren,

I think you have a rather longer way to go. You are making great progress, BUT.

I have been doing it a long time, and have most probably only seen about 0.1% of what is out there.

Once you start, you will have a lifetime of enjoyment and wonderment in front of you, but don't think for one minute you will get any further than scraping the surface.

All you can hope for, is scrape enough off, to get you to become a competant all round machinist.

John

Darren:
John,

It wasn't that long ago that all I seemed to do was break tools, now I hardly break much and seem to manage to make what I set out to do...

What holds me up mostly is time, take today, another 3 tons of concrete mixed and laid. At my age I'm starting to feel it....that's a lot of shovelling....
But it will come to an end....

And then I'll be off....be no stopping me....in the mean time I'll absorb info and play a little..... :thumbup:

Baldrocker:
Darren
Don't be dispirited if others thought of it before you.
The important thing is "it was an original idea to you".
Others less accomplished in the model engineering black arts
thank you for sharing an  idea :beer:
BR

John Stevenson:
Happens all the while.

I developed this steady using a large bearing, held virtually anything, square, octagonal, rectangular, even welded shafts.

Posted it up as the newest thing out, only to find I was 100 years too late in inventing the cathead steady  :clap:

Another time, looking thru a catalogue I saw one of the inverted VEE bar centre finders, never seen one before, showed my 76 year old apprentice and he had never seen one either and had been in engineering all his life. So that made a combined total of about 100 years engineering experiance and never seen this gismo.

I do agree though that every so often these post have to be regurgitated so that newbies get to see what's happening.

John S.

Darren:
Another little bandsaw mod tonight....

My saw came without an auto off device. Not too drastic but it certainly would be more convenient if it switched itself off when it's finished cutting.

This is my second one of these types of saws and I seem to remember that the standard part was pretty useless. Mainly because it was too flimsy and would not stay in place, causing it to become ineffective most of the time.


So I decided to have a go at making something that would work properly...... :)

Starting with a bit of stock cut to size



Squared up on the milling machine and fabricated a small step.



Drilled and tapped a 5mm thread, this will hold the adjusting bolt. Indecently, you can see here that I'm using a spiral tap. I got fed up of breaking normal straight fluted taps in the machines so I decided to give this type a go. Not cheap but you sure can whack them through the material. With this I don't even bother to change the lathe or miller to a slower speed. Just bang it through. I think I tapped this bit of steel at about 1,200 rpm and it's a sweet thread. Couldn't do that with the other type.... :zap:



Drilled a 6.25mm mounting hole for the 1/4" fixing bolt and cleaned it up a little.



And here it is on the machine, picture should say it all.



Sorry for the blurred pic, but hopefully you can see why I machined a step. It locates on the bottom of the casting and should prevent the fixture from rotating under the pressure.



So there we have it, one slightly over engineered auto stop. Shinyest bit on the whole machine  :lol: :lol: :lol:

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