Using a metal cutting burr with a router...?

[JAZZCNC]

That's just the kind of advice I need! I don't know why you bothered to write anything! It is a complete failure of logic to imagine that just because I want to use Nema34 motors that I got cheap that I somehow am incapable of hearing anything else. It's depressing.

Got nothing to do with if you use motors or not, I couldn't give flying fuck if honest. But it does have everything to do that maybe you should consider the manner of your replys to people who are only trying to help or have your best interest in mind.! . . . . . Because one day all there experience may just provide the answer or advise that will save you £100's but they think Bolloxs to you Captain Klingon Knob.!!

Now just to show I'm not total Twat you think I am then be aware that those tables/saddles are like Golf balls.? Cut into them too much and they release tension like women with bad PMT..!! . . . Be afraid very Afraid.

[John S]

Do you know why it's called PMT ?



Mad Cow Disease was already taken.......................

[noyloj]

Got nothing to do with if you use motors or not, I couldn't give flying fuck if honest. But it does have everything to do that maybe you should consider the manner of your replys to people who are only trying to help or have your best interest in mind.! . . . . . Because one day all there experience may just provide the answer or advise that will save you £100's but they think Bolloxs to you Captain Klingon Knob.!!

I really am sorry that you found my replies in the build log dismissive and impolite. I can assure you I did not mean to come over that way. Sometimes my mode of discussion is a little, shall we say challenging! But it's meant in good humour and despite what you may think I have taken on board everything that has been said.

Genuinely thanks for the advice as regards the latent forces in the table, I will not cut it at all if I can get away with it! And if I do so I will only remove the minimum especially so in light of your observations.

I incidentally have never cut into a golf ball... Although I have sliced up a few women with PMT...

[Clive S]

I really am sorry that you found my replies in the build log dismissive and impolite. I can assure you I did not mean to come over that way. Sometimes my mode of discussion is a little, shall we say challenging! But it's meant in good humour and despite what you may think I have taken on board everything that has been said.

Ok seeing that you are not so abrasive.

I cut a slot in my table about 4mm deep


and the table twisted by about 2mm with the stress being relieved then I had to take it to engineering place to have it trued up and the top skimmed.

So beware as I did not expect that to happen.

[noyloj]

I cut a slot in my table about 4mm deep

and the table twisted by about 2mm with the stress being relieved then I had to take it to engineering place to have it trued up and the top skimmed.

So beware as I did not expect that to happen.

Yes 3-4mm was about what I'd imagined, I would have though that would be safe!.. bugger for your table what a pain!

It's a crazy thought probably but what if I was to try and relieve the stress before milling out the groove?

[noyloj]

Ok seeing that you are not so abrasive.

I cut a slot in my table about 4mm deep


and the table twisted by about 2mm with the stress being relieved then I had to take it to engineering place to have it trued up and the top skimmed.

So beware as I did not expect that to happen.

Perhaps this resource could be useful...

STRESS RELIEF OF GRAY CAST IRON


dtic.mil/cgi-bin/GetTRDoc?AD=AD0620556 · PDF file


I don't know how to insert links so go easy on me....

[mekanik]

http://www.dtic.mil/dtic/tr/fulltext/u2/620556.pdf

[noyloj]

Yes that's the kiddy!

Probably not the right place to ask but...

1. is that the same link?

2. how did you post it?

3. how do I add attachments and photos?

[John S]

Warco WM14 you can usually get away without having to machine the underside of the table.

Warco WM16 is borderline some clear, some don't.

Warco WM18 you always have to machine the table.

The problem comes about from droop when casting as they are cast top up.
The longer the table, the slower it cools and gives rise to the middle dropping down under the weight of the metal.

There are ways when casting to prevent this but seeing as it's not their remit to make sure they can convert to CNC then they don't bother.
There is enough standard clearance for the manual ACME screws.

[mekanik]

Just went to the web page copied the address and pasted it,not put many attachments into posts but think it's in the tools menu .
Mike