|
|
Post by jcsteam on Oct 4, 2020 1:15:14 GMT
Hi everyone, i have a question which i hope to confirm my thoughts but open to suggestions. I have four dividing plates that were laser cut, each hole has a 3mm dia hole. For the most part these holes look clean, but there is no bore in the centre. For accurately machining the centre for the dividing spindle, do i use buttons, turned on the lathe to fit 3mm, but made from a single length of ground steel bar turned between centres. Pick an even number of divisions on the plate, then divide by 4 for plate one in hole ring one, 14 for plate 2, 7 for plate 3, 6 for plate 4, and clock in on these buttons with a DTI to centre in the 4 jaw?
As i say open to suggestions please.
Dividing plate
1=24,34,41,47,54,61
2=25,37,42,49,57,62
3=28,28,43,51,58,63
4=30,39,46,53,59,66
|
|
|
|
Post by ettingtonliam on Oct 4, 2020 6:35:29 GMT
Make your little buttons with a slim head, and a fine centre pop. Put in the holes, set dividers, and scribe intersecting arcs for the centre. Punch centre, scribe and punch desired hole size at centre. Bore out.
You'd think the supplier could have put in a 3mm hole at the centre. I'd consider popping a 3 or 3.5 mm drill through the plate holes to clean them out.
|
|
|
|
Post by jcsteam on Oct 5, 2020 1:09:06 GMT
Make your little buttons with a slim head, and a fine centre pop. Put in the holes, set dividers, and scribe intersecting arcs for the centre. Punch centre, scribe and punch desired hole size at centre. Bore out. You'd think the supplier could have put in a 3mm hole at the centre. I'd consider popping a 3 or 3.5 mm drill through the plate holes to clean them out. Possibly would have been helpful. The dividing plates and westbury dividing head, came to me as a complete but unfinished set of parts and castings. I finally have a good reason to finish it to completion, machining the gears for the Durham traction engine. So thats spurred the question of the dividing plates. Thanks for your input. |
|
