Bandsaw overhang

This topic has 17 replies, 15 voices, and was last updated 11 March 2021 at 21:29 by not done it yet.

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10 March 2021 at 22:17 #533103
Peter Ellis 5
Participant
@peterellis5
I have a shortish 75mm bar I need a slice off. I am minded to bolt it to something that the vice can hold better. What would you do ?
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10 March 2021 at 22:17 #28036
Peter Ellis 5
Participant
@peterellis5
Vice jaws on Femi not close to blade
10 March 2021 at 22:50 #533108
noel shelley
Participant
@noelshelley55608
If the bar is steel weld something on the end, box section may be . Noel
10 March 2021 at 22:50 #533109
Pete.
Participant
@pete-2
I have a femi and have had the same problem a few times , when I get a chance a permanent solution would be using some 10mm steel plate and make some replacement Jaws that reach nearer the blade, maybe put a horizontal V groove along the fixed jaw for holding bar, as the base of the vice obviously will still be away from the blade.
11 March 2021 at 01:39 #533116
Ady1
Participant
@ady1
use plate/s to extend the jaws and put an equidistant support of scrap etc at the opposite side so the vice closes up parallel
11 March 2021 at 07:06 #533124
JasonB
Moderator
@jasonb
I put a piece of angle iron into the vice which supports the bottom & Back of the short stock. Angle is clamped to back jaw by the stock pushing against it, you cut through the vertical leg of the angle the first time you do it but after that just line saw slot up with blade
11 March 2021 at 07:58 #533132
Gary Wooding
Participant
@garywooding25363
I've had the same problem many times – the movable jaw swivels when attempting to clamp short bars. No need to modify the jaw at all – just get a piece of flat bar the same length and width as the fixed jaw, and drill and tap a hole for a suitable length of threaded rod. Adjust the length of the threaded rod to hold the short bar as shown in the photo. It works perfectly.
11 March 2021 at 08:28 #533138
David George 1
Participant
@davidgeorge1
Thanks Gary for the adjuster screw idea. I have extended my jaw to match the fixed jaw on my saw but I usually use a couple of wedge blocks from my clamp set with the teeth to match material size but it would be easy to just tap the plate and use a screw to support the back end of the jaw.

David

Edited By David George 1 on 11/03/2021 08:29:26
11 March 2021 at 09:09 #533144
SillyOldDuffer
Moderator
@sillyoldduffer
What a good idea – why didn't I think of that!

On Chinese 6×4 types, it's not difficult to take the back plate off and fit it to the front jaw:

For holding short items, I made a clamp. Can't find the stupid thing for a photo, but it's just a flat plate about 10mm thick about as long as the width of the fixed jaw and 60mm wide, with a couple of studs to hold a bar that clamps down on the work. Crude, but quite useful.

I do like Gary's solution though – it probably grips better and with far less fuss.

Dave
11 March 2021 at 09:53 #533154
Ady1
Participant
@ady1
And just because its tight doesn't always mean its secure

Give the workpiece a few good pulls in different directions to check
11 March 2021 at 10:12 #533159
Nigel McBurney 1
Participant
@nigelmcburney1
Garys holding method goes way back,the Rapidor power hacksaw in the factory where I first worked, had an accessory for holding short lengths of material ,it consisted of two malleable iron cast plates each one having two V s of differing size, plus a long threaded bolt, the two vees allowed various diameters of short stock to be held securely without tilting ,plus short lengths of flat stock could also be held,the bolt took up the gap at the other end.The Rapidor came new to the factoy so the accessories were looked after,I have seen many of these saws in dealers and at auctions ,none had the special grippers for short material.I made some of these plates for my saw using 4 x 1/2 in flat bar with angle iron welded to them to form the vees. I have often thought of making a similar vee jawed gripper for my DO ALL band saw but like a lot of things it does not get done until there is an urgent need.
11 March 2021 at 10:24 #533162
John Baron
Participant
@johnbaron31275
Posted by Peter Ellis 5 on 10/03/2021 22:17:49:

I have a shortish 75mm bar I need a slice off. I am minded to bolt it to something that the vice can hold better. What would you do ?

Hi Peter, Guys,

When I refurbished mine I made a blocking piece to fill that gap ! The short end cannot now disappear through the gap and the material is supported right to the end. However beware that very thin pieces may get dragged into the gap between the blade and guide, jamming the blade.

Before !

After !

No more lost or unsupported pieces.
11 March 2021 at 11:12 #533175
Peter Ellis 5
Participant
@peterellis5
That is odd. I replied to this and now I cannot see it. The IT side does seem a bit unusual.

Anyway, thank you for the ideas. I do use a machinist´s jack to equalize the jaws, but Gary´s idea is more versatile. The Rapidor plates sound interesting and ´minding the gap´ is food for thought.

Now to find some plate. Things were much easier in London !

Cheers

Peter
11 March 2021 at 11:22 #533177
Zan
Participant
@zan
Good solution John, but I went a bit further. As the outboard platform is wider on my version, I bolted a piece of angle about 2” long there almost touching the fixed jaw . This allows a g clamp to hold very short pieces rigid It is only ever removed and reset when a rare angled cut is needed. It could still be fixed to your lower insert bar. The advantage of this is that it supports the work and removes the twisting caused by the cutting action, thus making it easier on the vice.
11 March 2021 at 11:29 #533180
Clive Foster
Participant
@clivefoster55965
Light alloy grips better on steel than steel on steel so consider making your adapter from alloy or adding alloy grips at the business end.

Clive
11 March 2021 at 17:23 #533271
Iain Downs
Participant
@iaindowns78295
I have a little block just the height of the underside of the vice, which I use to support the part being sawn, just past the saw blade. Generally works OK, but I like the other ideas!

Iain
11 March 2021 at 17:28 #533273
jimmy b
Participant
@jimmyb
I have a plate with a "V" cut in and several tapped holes. I then hold this in the bandsaw vice and hold the bar with a couple of milling clamps.

Works very well.

Jim
11 March 2021 at 21:29 #533301
not done it yet
Participant
@notdoneityet
Just seen another innovative ‘work-around’ on another forum.

Fit your short 75mm lump lengthways in a vise and clamp that vise in your bandsaw vise. Clearly the idea is to only cut almost to the centre and finish off with a hacksaw.
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