Thanks for that very encouraging feedback brother! Much appreciated mate. I’m really enjoying the opportunity to share what we are up to, and love being able to chat with people who clearly share my interest! There’s a really good community of skilled machinist who tune into the channel, and I’m grateful they share so often in the comments. Bloody helpful when you run a shop in the middle of nowhere 👊
Paul here from the UK, loved the video. It goes to prove nothing changes, just gets improved and tweaked. Roughing the bores with HSS before using carbide tips. Loved the honing using an electric drill have fond memories of aching back and arms using a honer made on the fitting shop, powered by compressed air with paraffin lubricant, a filthy job which the youngest apprentice always got. Then you ate your lunch ! - Keep up the good work
Funny you should mention that the filthy job goes to the youngest in the shop. It was our youngest (and deadset a candidate for apprentice of the year) who was honing it all out and then got Godzilla stuck. He’s directly responsible for The Beast. A happy accident all round 😜
Great work and a good looking holder. In my 28 odd years with Seco Tools here in NZ I have never seen one of those drills but as it has the W shape drill inserts you can probably easily calculate some cutting data bearing in mind you are going to be governed by the HSS drill in the centre. If it were me I would drill a short pilot hole the same dia as the the HSS drill on the end so it has some stability before the the larger dia starts work, if you know what I mean. Cheers Ian
Not being trained as a machinist, you and Kurtis are giving me a liberal education in the craft. I’m about ready to buy a small one and dive in. I have no idea what I’ll make, other than a mess, but I’ll have some fun doing it. I’m really looking forward to seeing this big drilling project come online. It should be fascinating. 👍🏻🇺🇸🇦🇺
Love it. You’ll be surprised what to make once the inspiration begins. A project I’ve wanted to do personally for a while is buy a good (but run down) original Colchester and rebuild it completely… Mostly for the experience of fully understanding how it all works inside. Then have it as a pretty toy for the pure enjoyment of machining once it’s finished. My 2 cents… go for it and have a blast!
that mini chuck looked so funny, makes you realise how big some this tooling is. matt love the content it just gets better ever time. nice you dont dwell for ages on one thing but lots happen
So true! The size variations in machining setups are truly mind boggling. It’s the tiny stuff like precision watch making that blows me away. How they adhere to those insane tolerances… mega respect from me.
Occasionally we have to put a 12” chuck in the giant 700mm scroll chuck on our big green megabore (the hulk) It’s bloody hilarious to look at, but gets the random odd jobs done.
Man, I just want to compliment you on how much your camera shots have improved. I know that was something you admitted struggling with early on, but you have learned and changed your setup really quickly, and that is very commendable. Well done man, looking forward to seeing more content from you.
Thanks so much mate. I really appreciate all the feedback (both positive and negative) as it really helps me improve it all. Goal is a channel with content worth watching… that doesn’t have camerawork like Cloverfield 🤣 Def a sharp learning curve 💯👊
Here i am thinking I've cornered the job market in mini lathe machining, and you go and "tool up" a 100mm chuck. Thanks mate, for pinching ALL the work, big and small😅 It takes the solid tool post idea to a whole new level, love it👍👌🇦🇺
I remember using a shop made HSS/carbide insert drill for drilling 7" holes through 12" thick 4150 modified plate steel mold base(HB ~225). It roughed out holes that we bored to location using a Lucas horizontal boring mill. The Silver and Deming HSS center drill was the limiting factor for speed(1 1/4", 80 fpm, 275-300rpm). Due to the forgiveness of HSS, the carbide inserts failed before the center drill. My memory from 1994... Keep up the great content!
I've run that style of drill up to 185mm diameter in the past - it had 4 carbide inserts per side and really tested the HP on the DSG lathes we were using. Your feed rate i would suggest going at the same per tooth as for the slightly smaller one you demonstrated using the other week (0.125mm/rev if i recall) and surface speed the same (but i would be wary of going too fast as that centering drill looks to be HSS) I think the HP might be your limiting factor though as the torque goes up exponentially with the bigger diameters.
Thanks for the really insightful advice Graham. Much appreciated, and I tend to agree. I’ll be starting it at 100rpm & 0.1 feed rate. I think that’s about where the max torque of the lathe exists… so should be interesting. Apparently it ran well on the smaller lathe, so fingers crossed we’ve got the grunt to put a big hole into a 500kg bar of 4140 sitting outside just begging to be machined
I really enjoy your work I’ve been in the business 40 years. I live in Alaska. I’ve been to Antarctica 16 times. It’s because of equipment I’ve built and I run it or install it down there I’ve been to New Zealand 16 times I’ve been to Australia twice.
Thanks for the kind words mate. Sounds like you’re doing some great work yourself! Hal (grandad) originally drilled in the arctic circle for oil in his teens and twenties before he came to Australia. He always said it was a cold that you can’t even fathom. Minus 50 degrees c 🥶
Why didn't you put the Ozito drill in the chuck (stationary) and then run the saddle back and forth using the CNC tool-path? Then you could walk away for however long it took! This is real shop work, I also find myself having to do the same type of revisions due to the real limitations of my machines and the tooling available, especially, as in your case, for a one-off job. I enjoy your videos immensely - keep making them please.
Reminds me of some dude who said, "we need a bigger boat" My goto power tools when working on site - Hitachi. See plenty of Makita and Milwaukee, very little of the green
We definitely need a bigger boat 🤣 I haven’t seen much Hitachi, but apparently the Makita go well (at least according to the repair guys). They’re old school and reckon they almost never need to work on Makita. All the fab & mechanic boys seem to go for Milwaukee though. Us machine shop plebs tinker with the Ozito. We rarely use hand tools for extended projects so it actually works just fine. Wouldn’t like to use it for any extended drilling or grinding though. No way it’d survive.
Best way to clamp it would be to slit it along one side and then pinch the bore together with a few hefty pinch bolts along the length of it, bolting down top half to bottom half, Ten times better than three or four grub screws coming down on the bar. That way it is sure to slip and spin.
Thank you for throwing in some numbers in there, helps visualize the size. I've never thought that this is 500 mm chuck. Video does not give perspective to how big your workpieces are.
Welcome brother. I remember when the lathe arrived it was scary as hell to work on. 400kg of chuck (combined) spinning at 900rpm. Now I’m used to it and forget that it’s actually rather oversized. Thanks for tuning in, and for the great comment 👊✌️
That thing is a weapon. It makes poor old Godzilla look like a little Iguana. Fortunately we don’t need a bar quite that big for our style of work… yet 🤣✌️
@@halheavyduty Love Kurtis and Karen…..I watch every Friday morning before work at the diesel shop here in Little Rock. Been a fan for years, and look forward to seeing your content for years to come!
That thing with the horrible hss drill stuck in the middle, looks like it may be a (heavily!) Modified Kenna HTS drill head. They might be dft inserts.
I think you’re right. I’m going to look into it this week and see if I can purchase the original pilot drill rather than the Frankenstein POS it’s currently sporting. Free tool… so can’t complain. But I can try to make it better 🤣
Yeah I agree. For what we do, they’re totally fine in all honesty. We don’t really do a lot of extended jobs with hand tools (I did as a boilermaker, but not as a machinist) I can totally understand why the guys love high end tools, but we survive just fine with the cheap little Ozito ones
Just wondering your thoughts on using a trepanning tool to machine some of the larger diameter holes? I came across a guy by the name of David Wilks. His channes showed him trepanning various large diameter hole in inconel 718
Great question. David Wilkes is the OG legend of trepanning. We use a 7” trepanning tool on larger billets. It’s one of our most useful shop made tools for sure. Here’s a vid of it running. INSANE Core Drilling (We Got It STUCK) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2JHkp5JwoOk.html
Mate think you bin watching or torking with C E E may need borrow his big arss boring bar Nice vid keep them coming great content and no let's torque about it 10 times then the vid is finished Cheers
@@halheavyduty yar bit like yourself if he don't have a tool for the job he makes one love the tool extension he just made yet to get another job done now that was anintresting piece of kit
I’m looking forward to watching his latest vid. Kurtis and Karen set the bar bloody high - which is awesome. Every time I look at my ghetto swarf bins I just shake my head 🤣
@@halheavyduty yar take a look see its assume bit of kit just like how he made it so it bolts down on the tool post on both sides for extra holding strength Cheers
Not an option in this case. We have a large trepanning tool, but it wouldn’t quite reach. The holes on either ends are also different sizes with a taper in the middle - and the smaller was 50mm under the size of our trepanning tool. For about 80% of the jobs we get, we can core it out no worries… This setup is for the other 20% 👍 Excellent question by the way.
I hate machining through welds. And I'm machining small stuff. I cant imagine the honking giant stuff you guys are working on. I'm also not a fan of the Dickson type tool holders. I know they are very popular but I'm not feeling it. The movement you showed in the video is why. In any case, great idea for the big boring bars. 👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣👣
Soooo why didn’t you run a long bar and support it with the tail center? And the comment about it being flat after welding. Good luck. Unless it has been normalized it will crawl like a snake when you machine it. I found this out trying to weld angle plates. Cheers.
We welded the before it was machined to avoid distortion. Surprisingly it actually machined within tolerance of 0.02 I was pretty worried TBH. My background before machining was boilermaking… and faaaark have I seen what heat does to metal. It’s amazing how much it affects everything. I’d say the end result isn’t perfect for the holder, but I reckon she’ll get the job done. About to find out. Wish me luck brother.
@halheavyduty that one looked like the old school ones we have. I believe they were called a hertell drill or something like that. Unfortunately I use them on a horizontal boring mill with air only so my feeds and speeds are way different from what you can achieve with coolant
Cheers brother! Appreciate it man. Makes sense that it’s an older drill. I’ll do some homework on it so I can find replacement carbide for the sucker. Something tells me I might break a few teeth on the krakens maiden voyage…
Hi Matt Just watching your video now. This drilling project you are doing, does the mining company supply the engineers drawings for you or do you have to draw them yourself. ??? Greg NSW
A question I have are the boring bars like a solid piece of steel or like a big tube also about the Kraken is the drill bit in front a high speed steel drill or is I carbide onestly that honing isn’t ghetto to me since the honing tool is self centering or not but that surface finish man that looks amazing has to feel amazing to also thanks for sharing your great work it always makes me happy seeing you upload another of those great videos keep at it
I wasn’t aware he had one. I might give him a buzz. He’s been very helpful to me a number of times. Great guy and really knows his stuff. A few viewers who seem to have pretty extensive experience running these drills have messaged me - all with pretty similar data - so I’ll give that a whirl first. The community of machinists in these comments have such a diverse range of experience, it’s super helpful for someone like me who runs a shop in the middle of nowhere 🤣
Please tell me that godzilla have through cooling in it. Don't know the speeds and feeds for the drill sorry but my best guess would probably be G96 S180 F0.15 to F0.32 and G50 S450 Btw hope you enjoyed the badly made video I uploaded ( that was the big manual stuff I did about 9-10 month ago ). Don't have video of some of the newer cnc stuff I done ( or of the really small stuff I done )
Hey can you link me the video in a reply comment. I can't seem to find it? Would love to check it out though! Yep. Godzilla has through coolant. He's made out of a very rigid recycled 20+ year old drill collar. That sucker has seen some dirt in a past life... and it's left him insanely rigid from work hardening the steel down thousands of holes.
@@halheavyduty well personally i would probably give it a little heating up ( with all those years of hard work it might have work harden over the year's but also gane some internal stresses. give it a little heat ( like 275-350C for a few min and then hold down to a straight fixture. should keep it straight. hard and with less internal stress )
We ended up wrecking poor old Godzilla… reborn as the BEAST. With full through coolant. Even old Kong is getting a reboot. Little fella needs some through coolant in his life
I thought of that too - problem was that it has to start right outside the hold and then pass through. In the end the rigid bar pretty well nailed it. Aside from the finishing pass it worked a treat. Glad I don’t have to do that again any time soon. Took bloody ages 🤣
