Tilting table getting there.

Hi All,

Have got about half way through making my new tilting table.It has 190

degrees of tilt *95 /-95 It is mostly from Meehanite, apart from the 2 shafts and their flanged nuts [1 right hand thread and 1 left hand thread] they are from EN24T . But I seem to have boobed with the weight I reckoned about 40 kg's when finished but it is now at a shade under 51kg's and still has the base to go so will probably be nearer 60kg's but it is very very rigid and stable so that is 1 plus from the boob. As it is just now when horizontal on the granite surface plate there is 0.004mm from end to end so I am happy with the accuracy it's just the weight is a pest [being a bricklayer I am used to lifting Granite a lot heavier than the table] but putting the thing on the milling machine in a controlled manner is not easy. I have put a photo in my album for anyone interested.

Regards,

Raymond.

Edited By Raymond Anderson on 25/10/2012 18:26:33

Thanks Ady I was not to sure about how to stick a photo into a post ,Cheers.

Raymond.

It obviously stays attached to a mill by its own weight?

KWIL,

Unfortunately it won,t stay with it's own weight, the base still has to be completed.

as has the Tslots, or a threaded tooling plate [ argh, even more weight]

Raymond.

Hi Raymond,

I like the flycutter - homemade? Is that a Glanze tipped tool you have in there? How do you find it works with the tipped insert?

Table looks good too!

Thanks

James

Raymond

How nice to see another user of a Newall C80, I have several.

K

Hi Raymond,

The table looks nice, I like the clamps you made,

Regards

Thor

Hello All,

James the cutter that you mention is not really a flycutter ,I made several in Ø's up to 150mm

they take indexable tools, the largest takes 5 tools and the smallest takes 2 they are from EN16T In the larger ones I often remove a few tools and leave only 2 depends on what I am milling Yes I think 1 has a couple of Glanze tools the others are either Sandvik Coromant or Walter NOVEX they work great with the correct insert I will stick a few photo's of the others in my album.

KWIL, Yes the Newall C80 is a great piece of gear .I also have a Newall topaz 2 axis on the Warco GH750 lathe and a Heidenhain on the DSG.

Thor, The plate clamps you mention are machined from EN16T the front faces are from EN24T. the guides bars [to prevent any rotation of the front face] are from silver steel they are designed to apply a downward force as well as a linear force and they can apply a lot of pressure if needed. There is not really much to them but they must be made very accurate to work correctly I will take 1 apart and stick it in my album.

Regards,

Raymond.

Raymond, is the table hollowed out underneath? That would lose a bit of weight, you could also put resesses in each leg, and at the bottom of the legs have a slot for a mounting stud, just an idea to lose a bit of surplus. Ian S C

Ian, No, the table is not hollowed out . I see where you are coming from, re saving some weight. But it will be managable at approx 60kgs, and I like everything solid and rigid and it's certainly both. The construction side of the table should be finished tomorrow [ the base], and then only the T slots [or tapped tooling plate] will remain to be done, then it's done and dusted.

Regards,

Raymond.

Raymond, I was just thinking what I would do, I look at it this way, I can lift it now, but will I be able to do it in years to come, Thats why I built a hoist to move the chucks on the lathe,m they are 8", so a reasonable weight, but this year I'v had trouble with my legs, and the hoist has come into its own. The only time I have to man handle a chuck, is when I want to put it on the rotary table on the milling machine. The hoist uses the motor from a garage door opener, I think its a 36V motor, but it's ok on my 17V workshop low voltage supply. Ian S C

Michael, good call about the t-slots, I have the table scraped flat and true so I would not want the slightest distortion . I have decided to install a threaded tooling plate, they are also made to very fine limits of flatness. Yes I will certainly need a fail safe as it would certainly do the fingers a bit of damage. [in fact if I were to loosen it from the horizontal and it decided to tilt on to the fingers then I would most probably be looking at broken fingers at the very least ] again.

Regards,

Raymond.

Ps, The worm wheel sounds a nice idea, I will try to design one to suit the almost finished table. or else it's the easy way out [blocks of wood].