Question about grinder disc position over part to cut
Chris Mate | 24/01/2023 00:40:35 |
325 forum posts 52 photos | Hi, I once baught a 2nd had anglegrinder stand, and this weekend decided to put it in use and realy like it doing small stuff cuts. I also made it spark proof with covers, so no more waste over the shop. |
David George 1 | 24/01/2023 06:38:39 |
![]() 2110 forum posts 565 photos | Hi Chris a picture of the grinder and stand would help but I think you should use it like a bench grinder with a suport on center height. That way the grinding force is going downwards and you can have the support either side of the wheel as well which will suport the part you are grinding as you push if backwards. |
JasonB | 24/01/2023 07:27:14 |
![]() 25215 forum posts 3105 photos 1 articles | As most stands have the grinder move in an arc I doubt it will stay in one position throughout the cut and then that will change as the disc wears. I'd probably try to avoid cutting too much with the grinder over ctr and towards the operator as that could tend to draw the grinder into the work a bit like climb milling or lift it out of the vice. So pack out between work and rear jaw when cutting small items. |
Nicholas Farr | 24/01/2023 11:57:27 |
![]() 3988 forum posts 1799 photos | Hi Chris, the instructions that came with mine says the adjustments should be made to put the centre of the disc over the centre of the workpiece. As JasonB has pointed out, the disc will cut in a slight arc, which will be away from the operator. If you have it behind the centre of your workpiece, it will have the tendency for the forces at the start of the cut to put the load more onto the movable jaw, which you should not do. Starting with the disc on centre will give an equal pressure to the centre of the work and most of the force will be down into the base and once the cut has started, providing it is adequately held, should not have any tendency to roll or flip-up and the cutting forces will be shared mostly by the base and the fixed jaw. If the workpiece is not adequately held, the disc will have the tendency to roll or flip the workpiece in the front, behind or on centre, but if it is behind, the chances are it will roll or flip-up the workpiece and out towards the operator. Regards Nick. |
Dave Halford | 24/01/2023 12:17:51 |
2536 forum posts 24 photos | On centre is fine till you cut thin stuff, then the disc disappears faster than it needs to. |
Chris Mate | 24/01/2023 21:19:49 |
325 forum posts 52 photos | Posted by Nicholas Farr on 24/01/2023 11:57:27:
Hi Chris, the instructions that came with mine says the adjustments should be made to put the centre of the disc over the centre of the workpiece. As JasonB has pointed out, the disc will cut in a slight arc, which will be away from the operator. If you have it behind the centre of your workpiece, it will have the tendency for the forces at the start of the cut to put the load more onto the movable jaw, which you should not do. Starting with the disc on centre will give an equal pressure to the centre of the work and most of the force will be down into the base and once the cut has started, providing it is adequately held, should not have any tendency to roll or flip-up and the cutting forces will be shared mostly by the base and the fixed jaw. If the workpiece is not adequately held, the disc will have the tendency to roll or flip the workpiece in the front, behind or on centre, but if it is behind, the chances are it will roll or flip-up the workpiece and out towards the operator. Regards Nick. Thats how I have it currently, I made T-Nut strips, then cut off the lenghts. Edited By Chris Mate on 24/01/2023 21:20:32 |
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