Bandsaw

[Drains]

As slow a speed as you can with stainless. It work hardens like a git - any heat and you're ********.
Something to do with the formation of platelets in the structure, which makes the cutter just slide over the metal, get hot, go blunt.

The rage saws might work but only if they have a super slow speed.

The usual trick with drilling stainless on a pillar drill is select the very slowest speed (depending on the drill dia... but much slower than m/s) and push hard. Never let the cutter/bit slide, or the work hardening sets in.

 

[snowcat]

I have an industrial TCT saw, Run it really slow and put the small dia disc in to cut stainless.. but then I can run that saw to about 100rpm.

 

[vtec_lude]

Ok so the saw arrived today. Which is great as I only ordered it yesterday. The only thing is when I opened the box oil was everywhere and it seems to have come from the saw. I've e-mailed Axminster as i suspect it's the couriers fault.

Not good...

 

[vtec_lude]

Here's some pics

Do you think I should clean it up and fill it back up with oil or just get them to send me another?

Thanks

 

[irondarren]

leaky gear box guvnor, problem is, the gearbox seal might be damage which could result in premature failure. As Big as a pain as it is i would ask for a replacement

 

[vtec_lude]

Yeah my thoughts exactly. Oh well I'll give them a call tomorrow morning and see what they say.

 

[vtec_lude]

Well the replacement arrived just now. I've opened it and surprise surprise this one has dumped it's oil also. Granted it's not as much as the first one. They now trying to tell me this might be normal?????

What do you think?

 

[peterd51]

Hi,

it could be that they were all in the same container that got dropped or something similar...

maybe it's just a dodgy batch.

I'd always be worried about it if I accepted one like that.

Regards
Peter

 

[irondarren]

To be honest no it shouldnt dump oil, but having said that. The spindle that sticks out is the driven part of the gearbox, and it will be one of the highest points in terms of the gearbox. So i guess it does have to be 100% leak proof. It is possible that if laid on its side so the spindle points down it will leaks. its certainly in better condition than the first one, but having lost oil from the gearbox it will need replacing. Get them to send you some replacement oil FOC. CHeck that drive spindle and make sure it isnt loose if its ok it should be fine

 

[vtec_lude]

Well I've cleaned it up a bit and it seems the leak has come from the spindle. I have had a call from their service tech guy and he assures me it'll be fine. Strangely there is no fill or drain plug.

 

[vtec_lude]

Ok update:

I've spent a few hours getting it to cut straight. Took a lot of fiddling but I'm pretty happy with the cut now. Also found that if I over tension the blade it'll pop off the wheels! Got some blades coming so I should be able to cut stainless soon.

Does anyone know if I should use some sort of cutting oil or something?

 

[irondarren]

vtec if your cutting stainless, cut yourself some cutting fluid, its normally and oil which you mix with water, and comes out milky. I sure your unit didnt have a coolant feed? but it might be worth putting some in a washing up bottle and squirting some on as its cutting. It will certainly make the blades last longer

 

[vtec_lude]

Ok I'll get some cutting fluid. Stainless is a pain in the butt! I cut mild tubing like it was butter!

 

[irondarren]

I been doing a bit of fiddling with stainless this week, i forgot how hard it is. 6mm drill running at 250 rpm to drill so i dont burn out the drill, and the drill still gets warm lol

 

[vtec_lude]

I've destroyed so many drill bits that I don't even want to add up the costs!

 

[vtec_lude]

Would this work ok?

http://cgi.ebay.co.uk/Castrol-Coole...ryZ98641QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[irondarren]

Thats the stuff, it looks like milk when diluted (dont put it in your tea dont think it would tast nice), no reason why you cant use it whilst drilling as well

 

[vtec_lude]

Excellent! Thanks for the help!

 

[Wozzaaah]

Would this work ok?

http://cgi.ebay.co.uk/Castrol-Coole...ryZ98641QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Jeez that's dear! Nearly £7 for 250ml!! Go to an engineering shop with a plastic milk bottle and ask for some, it should only cost you a bit of tea money. Or try here, 1 litre for less than that 1/4 litre

 

[Baz-Cem]

Try these,

http://cgi.ebay.co.uk/ROCOL-V-cut-E...yZ112399QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Baz.