New Mill for the Workshop. Can it be brought back to life?
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- Опубликовано: 15 сен 2024
- In this episode from the Yorkshire Fab Shop, we got a new machine for the workshop! It’s a mill from the 60’s which hasn’t had too much work but needs a bit of recommissioning to get it going again.
It’s an interesting machine with some unique features not seen on many other machines. A turret based mill with a large capacity while keeping a small footprint.
It needs some general tlc, but a simple job to get it working once again. Grab a brew and enjoy!
good to see another video from you, the mill looks a good piece of british machinery.
Thank you for your ongoing support! Yes it is, woodhouse and Mitchell (or town woodhouse as they were also known) always did a good job of machines. But the same goes for many British manufacturers in that era. We will soon see if it’s maintained its accuracy all these years later!
Magic box. Check. Great looking mill. Thanks for the video!
Tricky is always afoot when it comes to creating additional phases from a single phase source! I’d have preferred a rotary converter, but size limitations mean a static was the logical choice. Thanks for watching and leaving a comment 👍
It’s not actually “4 axis”
That really only applies to the axis you can feed when working so you only have the standard 3, X, Y & Z.
Their orientation doesn’t change the fact that there is only 3.
A rotary table would give you a forth, A or B depending on orientation.
Thanks for clarifying that. The point I was trying to make is the head has multiple adjustment planes and is basically a universal joint. I have misused the word axis and should have used adjustment plane. Thanks for watching and leaving a comment 👍
Innovative design, never heard of this manufacturer, looks a good fit workshop wise.
Transwave, or Power Capacitors are excellent items, and very good to deal with, both my first Static, and Rotary converter worked great, just had to source a type C MCB, ref: inrush tripping.
Thanks for sharing
Thanks for taking time to leave a comment! It should be a great addition to the shop, as long as I can keep on top of it over the winter. It doesn’t take up too much space, but is a massive improvement over the centec I had. I’ve got a good selection of tooling with a couple of bits in mind to bolster my current capabilities.
Yes they are, they make decent gear. I haven’t had any issues with the supply to the garage, but I did make sure it was substantial in preparation for a large welder and decent sized lathe. The only downside to having a converter of this size is running smaller motors isn’t possible without a pony motor, but as long as I keep everything at least 1hp I’ll be golden!
Hi there. Nice mill. I have an old Elliot Universal with a swing out Bridgeport head - so I well understand the need to compromise. What's the nice old lathe there? Cheers
Thank you for the comment!! I was looking at the omnimill as a potential, plus either a Harrison or a Victoria but sometimes you’ve just got to get what you can when opportunity presents itself!
Yes, universal heads are an acceptable compromise in a home workshop, but obviously they’ll never outperform a proper fixed head machine in terms of material removal and rigidity… I really wanted something with an iso 40 but it’s ok for now.
The lathe is a woodhouse Mitchell 70 junior, a decent lump capable of nice work. It’s not in the best of order and would benefit from some tlc but it’s a nice machine to use. Just a happy accident both mill and lathe ended up from the same manufacturer!
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Appreciate the time taken to leave a comment, hope you enjoyed 👍
@4:06, You want compromise, how's this? Twenty years in the can I wanted manicott', but I compromised. I ate grilled cheese off the radiator instead. I wanted to fuck a woman, but I compromised. I jacked off into a tissue. You see where I'm goin'?
Honestly, how heavy is that mill? My Schau 22 is a full metric tonne, and she is a sublime work of mechanical art... Made to be better than the famous bridgeport and as a direct competitor by the Swiss back in the day... A small machine really, but that just compounds the mass based rigidity... She has a 1horse motor, 3ph ofc, but a machine of that caliber was made to rely on a 1hp... I don`t know much about your machine, but i think that 1 horse is more than enough... 2 is likely to slip the belt whenever 1hp would not suffice, and with that round head ram, which seems no thicker than 4 inches, she likely suffers quite some deflection at such loads anyways, all the joints of the head notwithstanding... I would say that 2 is just too much in regards to efficiency... You likely will never really want to use the full 2 horse of that motor other than for drilling, and if you need 2 horse to drill, you should be using a boring bar or just stepping the drills better anyways... I know that that dude modded his import baby mill to 3hp, but that is really just silly in a way... If he gets that motor to stall, that shit is gonna do some nasty damage, likely to the mill itself if the tool is rigid enough... To stall a 3hp takes a lot, and that lot is not enough to burn it out, but that lot is too much for his little mill... Yours likely won`t ever suffer any real damage from the 2hp motor as she is an older and properly skookum machine, but she will likely deflect like mad if you approach the full motor load... That will do some nasty damage to your cutters, especially carbide endmills, so don`t overdo it... 2horse is great from a longevity point of view, as that motor could run that mill - properly operated - for ages without much strain, so it`s a good idea, but don`t let it tempt you into stupid ideas when using the machine...
Speaking of stock, i see that you too are a man of culture who snags scrap stock from scrapyards... I prefer industrial fasteners of 12.9 grade... You can find whole lots of never used fasteners in broad range of sizes on scrapyards... They often end up there either when a factory clears out the old stock from dropped contracts or when some shop closes and all the stock ends up trashed... Sure, there is lots of great stock to be found in other forms, but seeing a box of 12.9 black oxide bolts makes me hard... They are a bit disgusting to turn on small machines, but with a larger machine, they turn like butter and you have a high-tensile rod that is not some supreme toolsteel that you don`t want to waste, or some specialist alloy, but just a high-grade good stock that will withstand a hell-of-a-lot of load and will not fail anytime soon... They also grind and polish/lap amazingly nicely...
Also, prepare a clean room, extract that quill, take out the spindle, do it properly, no hammers or presses, just heat and cooling with liquid gasses(just get a shock oil from the mechanics store, it cools shit down to -30 celsius) and do the grease purge, get some proper spindle grease and renew the grease... If the machine is from 60`s and hasn`t had much use, she could still be having the OEM grease from day1... 60 year old grease is better than no grease, but it`s chemistry is compromised, and so is it`s lubricity... Running it will lead to wearing of the bearings in record times... I know it`s a bitch to do it properly, but you seem like a machine lover, so go watch robin renz, do what he does, and you will do one of the best things for your mill that you can, other than regularly servicing her and maintaining the surfaces as clean as possible and well lubed... It`s why i am not using my Schau 22, she is new-old-stock... Been sitting since 70`s in a swiss school in a store room as a backup... I got her for pennies as an un-inspected machine, and while she is in perfect condition, i know that that grease is twice as old as I am, and it`s service life since application is no more than 5 years of sitting or 2 years of industrial style work... Those bearings are not just some random bits of metal, they need as good a lubricant as they can get, and as fresh as possible... 60 year old or even 20 year old grease is not an option if you want her to keep running for long without a bearing change which will cost you much more than just hours of work and some costly grease...
All the best!
Steuss
OMG where’s the laughing emoji 😂 that lot tickled me.
Yes you’re right, not really much of a compromise, and just to rub salt in the wound since that video I’ve now got more head height so I could have a bigger machine.
It weighs about 800kg, so it’s not small but due to the head arrangement it’s not the most rigid (which it showed in the drill table machining), but it’s far more versatile than others of similar size.l so ideal for a one size fits all machine. It should have a 1 horse motor, and would have had a three phase from the factory, but don’t neglect the fact I’m running a phase converter which limits three phase motors to 2/3rds power. So although it’s a 2 horse, it’s only ever going to be doing 1.3 horse flat out which shouldn’t be too much bother. Oh the shortcomings of three phase in the home workshop when only single phase is available…
Yes, 12.9 is a great material to have at hand, I’ve made various punching / chiseling / peening tooling out of cap head screws. But yes it can be difficult to machine, especially with high speed steel and tool steel. I grab what I can because it’s always the piece you leave behind that you need, so I don’t leave anything! The issue being stock takes up space…
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Oh yeah, sorry, i`m lucky enough to have 3phase connection in my house, not industrial grade, but 30 amps does me well enough, so i tend to forget the auxiliary losses of converters...
I also couldn`t help the sopranos pun, you gave me an opening shot, im the real come from behind kinda guy, you know...
But that is a nice little machine, 800kg is not a wee amount of mass for a small machine... Tho, that head ram is still a major source of rigidity loss... A brilliant design for sure, most versatile, but with a trade-off in return...
Regarding the stock - i fully agree... If i ever saw a piece and left it, thinking i would not have use for it, the next project was the time when i could have put it to perfect use... I literally have over a metric tonne of steel in my stockroom by now... some cast iron, some alu, some bronze, brass and copper, but steel i could sell at this point as a small supplier, however, i always seem to be lacking the right sized piece when i need any... Funny that, innit...
But i was not kidding about the grease in the spindle... Sort that shit out asap... I`m glad that you have more room now, that always helps, in more ways than one, but that machine needs new lubricant or her career as a varsity athlete will grind to a halt...
Kind regards!
Yep, it’s funny how no matter how many different pieces of stock you’ve got lying about there’s never one that’s just the right size… I recon I’m not far behind in terms of stock amount, brass, phosphor bronze, aluminium, various grades of stainless and steel, little bit of titanium just because so I’m well catered for!
I have given the whole machine a good greasing, but I’m not convinced of the state of the epicyclic gear set. The heads are known to be very noisy, so I’m not overly concerned but I know it has been apart once before because the previous owner told me he’d taken it apart to get it in his shed. Why he did that I’ll never know, the whole ram assembly comes off the machine column easily… anyway he couldn’t put it back together so had it built by a “mate”… I’ll be stripping it down and giving it a full inspection at some point. As you say, these old girls need a good dose of love from time to time!
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Oh, im a sour pickle - with jealousy - just now, I want some titanium, just for kicks if nothing else... It`s a bitch to find just randomly, and it`s costly af to buy... I`ll have to visit my gypsy friends and see if they, through their mysterious ways - known only to them and their brothers - have acquired some of the good stuff that they are willing to sell... The scrapyards don`t see much titanium in any case...
Speaking of machines, i tend to like running into machines and cars that nobody really fiddled with beforehand... Too many times i have seen people lose track of componentry and fit stuff improperly - from magically ending up with spare fasteners to misplacing shim springs and similar... Not to even speak of potential terror of the shop where the machine was assembled, which could have had loads of abrasive junk around, just begging to contaminate the bores and what not upon assembly... And then there is the potential for sloppy lubricant use and misuse of wrong lubricants just due to lazy convenience of using whatever was at hand...
Having worked as an apprentice mechatronics tech, i have seen my fair share of cars that the owner ``worked on and fixed`` that were such bodge-jobs that it still gives me the shivers... I kinda treat every machine as if i just pulled her out of a dumpster - nothing less than a full inspection and teardown followed by full service before being put to first use...
The epi.gbox is likely akin to pull-gear configuration, so no wonder it`s somewhat loud... I guess that some graphite axle grease would do well in there, both as a lubricant and as a sound dampener of sorts... The bitch is that such racket can oft conceal some other potential noise indicative of wear, but generally the machine sounds healthy overall... Given your geo-position, yeah, i would slather the whole machine with grease too, it`s the most stable form of rust protection and one easily cleaned off... Hell, i use grease on my machines on surfaces that shed oil easily - during their sitting periods, and my shop is both warm and dry(relatively speaking)...
It is a pleasure seeing someone who loves the machines they have and treats them right... They really are masterpieces of art in iron, and should be treated as such, not as some modern junk that is made to be run into the ground and bought anew in a few years...
Warmest regards!