Love your delivery :-) watch all your vids as you seem like a decent bloke with lots of good advice :-)

@Xynudu

10 жыл бұрын

Thank you. I try to keep it casual. It's good to share information. Cheers Rob

Great point about work hardening Rob. Thanks for sharing- Fred

Nice sharp bit you got there. Good point on the cutting fluid. great little clip

I use my ER 40's in my mill to hold center, spotting, and both small and large drills when I want the hole on location as close as possible. And the 32's in my lathe the same as you do Rob. There's no comparison between how rigidly ER collets can hold a drill over even the best Albrecht drill chuck made.

@Xynudu

7 жыл бұрын

Yep. I do the same, and also spot with a live centre - very fast. Plus there's nothing worse than seeing your nice true drill shanks being torn up by a three jaw drill chuck. Collets rule. Cheers Rob

they have self-tightening drill chucks (the knurled ones),, they can overtighten so you dont wont have to worry about it slipping or changing collets

@turningpoint6643

7 жыл бұрын

Except that using reduced shank drills in even a top quality Albrecht chuck is not recommended at any time. What happens is if or when the drill catches or digs in the chuck can self tighten to the point of being impossible to loosen. And in severe cases it's not unknown for that to destroy the chucks internals.The Practical Machinist forum has some good information about the problem.A full set of off shore ER-32's and the collet chuck can be bought for quite a bit less than I paid for just one Albrecht chuck. And they'll hold a drill far more securely and rigidly than any drill chuck can if there tightened properly. For ER-32's that's approximately 100 ft. lbs. Yes they are slower to change drills and collets, but I'll take that trade off to get the better holding capability. And I won't use those reduced shank drills in my good keyless drill chucks.

Hello there Rob Yes, exactly. Was wondering why the heck U were not using coolant on Your small lathe, which U were running anyway at quite a high speed as well for such a Big Drill. Seeing U talking about "Work Hardening" we don't think it would be such a deal on BMS or other Mild Steels. Maybe on Tool steels would it be of some importance on Your smallish Lathe, but then again our larger Lathes have running Coolant for that very purpose. We have a MT4 ER 40 set which U have given us reason to now use more often as we have encountered Drill Chucks locking severely after a stint of heavy drilling. Thanks for showing and sharing. U never know when and who will benefit from Your profound experience. Just great. ATB aRM

@Xynudu

6 жыл бұрын

I'm no expert. But happy to share my experience with some of this stuff. Running coolant would be good, but I'm not set up for it. Collets are great and ER work very well with better compression range than most. They certainly have big advantages when used in the tailstock. Glad you enjoyed the video. Cheers Rob

Thanks for the video Rob, btw I have been up that creek numerous times! haha

@Xynudu

10 жыл бұрын

Yes, there are many entrances to that creek, all easy to find :) Cheers Rob

Thanks Rob just ordered it on Amazon.

I have the same set, love'm work great, no complaint....next time Rob.

Thanks for the video, Rob. You mentioned not using cutting oil or a coolant because it would work-harden the item you're drilling. If you let it "air cool" would it be annealed slightly? Just curious. Have a good one! Dave

@Xynudu

10 жыл бұрын

I doubt it. To anneal anything it has to be close to red hot. If you ever drill steel and things are getting hot, the best thing is to lower the speed. Definitely don't spray coolant/lube on the job intermitantly as it will harden the metal. Rob

You can shift some metal with that machine, very impressive..............Cheers

Rob Lot's of good stuff on your channel! I like the idea of using a collet chuck in the tailstock but how do you remove it from your tailstock? Most of collet chucks don't have a tang for easy self extraction. Perhaps your tailstock provides for a drawbar so you can knock the chuck out? Ramsay

@Xynudu

7 жыл бұрын

Hi Ramsay, You can buy collet chucks with a tang, they are used in drill presses. But any Morse collet chuck meant for a draw bar will do - just screw a short piece of thread into the end and cut to length so it ejects the taper. Works same as a tang. Cheers Rob

@mollygeorgie609

7 жыл бұрын

Thanks Rob. Easier than I thought. Ramssy

Good idea thank you

Did I imagine it or was the drill pulled down a ways when it entered the hole?

@Xynudu

8 жыл бұрын

+Cancun771 Looks that way. I think the reduced tang on that drill may be out a bit. It's one I got second hand. The flutes cut evenly though. It didn't matter for the job as I finished off with a boring bar, but a good pick up by you. Cheers Rob

If you watch closely when you start drilling and when it is still chattering you carriage is moving to the tailstock. I'm not sure if you are moving it or if that chatter is making it walk

@Xynudu

10 жыл бұрын

The chatter as the drill initially bites is making the carriage walk. There are some pretty serious forces at work drilling 20 mm. Rob

@cool69rtcharger

10 жыл бұрын

oh yes i know what chatter can do very well with my little 6x18 atlas lol

Nice if you have a full set of ER collets. Not cheap so that's why I don't get int them.

@Xynudu

10 жыл бұрын

If you don't use collets, then I suppose you won't have a set. Go with what you've got. Rob

i'm sure you could cut 40mil dia with an indexable drill on this lathe

Surely with a 20mm drill bit you would have it tapered and put straight into the tailstock.

@Xynudu

10 жыл бұрын

That's OK if you have a full set of Morse tapered drill bits. I don't have that luxury. The ER collet did the job, didn't slip, didn't mark the plain shank drill bits (which I also use in other non Morse equipment), so what's the issue ? Rob

@Mentorcase

10 жыл бұрын

That's OK if you have a collet holder that will fit your tailstock also a 20mm collet and a full set of stepped shank drill bits. Hmmm.

@Xynudu

10 жыл бұрын

If you don't use collets, then I suppose you won't have a set. Go with what you've got. Rob

@Xynudu

10 жыл бұрын

The video was about the holding power of collets, not who's got what in their work shop. Rob

rely? middle of winter? i think i can boil an egg in the sun right now....

@Xynudu

10 жыл бұрын

TheDivineImpulse Lucky you. Bring on summer :) Cheers Rob