Making a Custom Cross Bar for a Chain Hoist Trolley

[@dfye55]

It would be great to see and hear from the customer how well it worked out.

[@MrPossumeyes]

Thanks for giving me something peaceful to watch, Keith. I've been filling in some quiet YT times with random war-stuff and I'm a bit hyped and sad too. Thanks for your sanity, man. Much appreciated. You helped your customer, you helped me too. Big cheers.

[@lonniebrock3282]

Good job Keith another one bites the dust

[@richardsurber8226]

Nice video Keith. You are helping another fellow machine businessman go to work and finish his chainfall.

[@davidschwartz5127]

Keith, you should mention to your customers that, because of the tapers on I beam flanges the trolley wheels will have a tendency to spread the beams apart unless the I beams are firmly tied together.

[@bw6378]

I wouldn't want a trolley between I beams. They could deflect laterally and it could pop out under heavy load. Happy New Year and Thanks for the video.

[@maitajack]

Stop collars will do instead of 1 1/2in pipe and will be very versatile. I would add a spreader bar on the top of the two trolleys just between the rollers in order to prevent them from tipping inward. Happy New Year😊

[@jacksons1010]

You are correct - the original design has the I-beam between the trolleys to prevent tipping inward. The increased distance between the trolleys also allows for greater angular deflection and makes it way too easy to come off the rail. I would not trust this.

[@Hoaxer51]

It’s to bad that Keith doesn’t have an exact measurement for the width, he could easily cut shoulders on a solid piece and thread the ends, drill a couple holes in the trolley and be done with it. It’s a good idea, maybe they’ll see it before he picks it up.

[@llrustyengines]

Nice work Keith Thank you!!!

[@walterplummer3808]

Good morning Keith! Happy New Year!

[@SettledBatches]

25:30 - That "Edge" vice handle is a handy piece of equipment.

[@davidhudson5452]

Well done Keith

[@justinduffey9237]

As always I enjoyed watching.

[@CraigLYoung]

Thanks for sharing 👍 and Happy New Year to you and your family 😊

[@paulputnam2305]

That was fun Professor. Happy New Year to You, your family, and all your friends!

[@ralfehmann1161]

Nice job

[@petegraham1458]

Happy New Year wishes to you and your family Kieth!

[@terminalpsychosis8022]

Beautiful, as always.

[@christianmccollum1028]

Nice threads!!!

[@frankdoner8402]

Thank you Keith

[@elsdp-4560]

Thank you for sharing.👍

[@bernardwill7196]

Keith I wish you and your family a Happy New Year. Greetings from Germany.

[@frankerceg4349]

Thank you Keith!

[@JamesCarter-z7w]

thanks something enjoyable to watch Happy New Year

[@RustyInventions-wz6ir]

Very nice work mister Rucker. Good video

[@derbyshirebirdwatcher6054]

Hello Keith. I do like these quick job videos. I try to guess what processes you will use and in which sequence. A learning experience for me. Hi from the UK.

[@jimfiles3307]

Good morning Keith, WOW, you called it out early in the video that there’s going to be negative comments. I didn’t think that there was going to be so many grumpy people who didn’t hear that you were making this part to a customers specs, and that you would do it differently. To all of the negative people, just enjoy the process and don’t worry about the application. Excellent work Keith making the castle nuts.

[@tomswindler64]

I agree he is giving the customer what he asked for,not what everyone else wants.

[@jameslong3351]

There's never a shortage of whinners in this world, I just learned how to have convienent hearing at times! /LoL

[@--_DJ_--]

We can use the comment section how we see fit. If we see something questionable being done, a comment is definitely in order if you ask me. It doesn't really matter if he says he would do it differently or not, the questionable deed was still done.

[@jameslong3351]

@@--_DJ_-- Questionable in who's qualified/unqualified mind, OH only yours I see. That makes youy the only justified source,,,,,OK!

[@--_DJ_--]

@@jameslong3351 It is quite obviously questionable (if not outright a terrible idea) to modify rated overhead lifting equipment. The OP mentions other people finding it questionable as well, so clearly I am not the only one who finds this to be a poor choice. What is a "justified source" anyway?

[@gexas38]

man another great video with lots of operations...btw love to see the big RAD go to work. Man it was great to see that mill take a big bite out of the castle nut...im sure it was hot after 3 passes.

[@comput3rman77]

I was looking at cutting metric threads on a Monarch lathe and found that there are transposing gears available (but only for the 10EE) third party. But Keith has a 10EE! Just a thought for smaller stuff since it is a tool room lathe.

[@kensherwin4544]

I don't think the 10EE is on line yet. The last I remember, he was still trying to get a new drive working with the motor, but that has been a while ago. I could be (and probably am) wrong.

[@stevenclaeys6252]

Thank you for another Great video. Cheers

[@MichaelLangdon-en5cw]

Happy New Year to you Keith and your family 🥳

[@argee55]

Really enjoy the "quick" jobs. Happy New Year to you and yours!

[@RichardHassett]

Single point threading to a shoulder is scary for many hobbyists. Have you done any videos showing your technique in detail. You do the threading all the time and I haven't seen you crash. Your tool retraction looks essentially automated. I'd like to see your process.

[@snaplash]

This will load one side of each I-beam, introducing twist in them. This could be a problem depending on the beam sizes and span. Also, with that wide span, if one trolley hangs up while moving the load, the whole thing could twist out from between the beams.

[@amateurshooter6054]

Thanks Keith

[@DavidjTucker]

Hey keith. I got here through Leo's channel. Im gonna love what you do. Got some catching up to do!

[@BedsitBob]

It's tempting fate to say that a job is simple, before you start it. 😊

[@mattomon1045]

Happy new year

[@earljtharp]

I have noticed no problems with your audio. In fact it’s better than most of the videos I’ve watched.

[@paulkinzer7661]

Another great job!

[@BobPackard]

Watching your vids is always instructive, and I wonder why you dont use RTD compound? I have used it for some 60 years and its the best thing since sliced bread for reaming tapping and drilling....

[@gallagher68]

I am curious about the two I-beam setup, if the gentleman only has inside access to the I-beams this would make sense, but would still add a 'spreader' between the top of the trolley plates even if derated, however if he has accesss to both sides of the I-beam he should just add another set of trolley plates to capture both I-Beams using your bar to tie them together. As usual, great work on your part!

[@TMxl-w5t]

So much speculation LOL

[@gallagher68]

@@TMxl-w5t Not really speculation "LOL". A beam trolley is DESIGNED to mechanically capture the girder. Double-girder underslung trolley systems utilize a set of trolleys, one for each girder. Hence, I am genuinely curious about the application.

[@TMxl-w5t]

@@gallagher68 It's all speculation, you've not to seen any drawings, or the item itself... When one is asked to machine a part, you machine that part, not take it upon yourself to redesign the job.. LOL... 🤣

[@gallagher68]

@@TMxl-w5t what part of CURIOUS escaped your grasp. Tell me, without telling me, that you hold no professional licenses or required to have professional liability insurance. From a liability standpoint, once you know that you are participating in the altering or redesign of an engineered system that involves life/safety, you are liable. You can have signed disclaimers, waivers, and so on, but the court will still find you liable due to professional responsibilities and plausible deniability being removed. I design and install equipment to dynamically suspend equipment/loads over people/public. That trolley has a warning label that ANY use or modification outside of its design blah blah blah. You would be correct if a job came in that just had the manufacture of a shaft to certain specifications be created, you create the part. However, when you are presented with information, usages and associated parts that clearly show an intent to utilize the specified part in a manner inconsistent with its design/function, especially where life/safety is involved, you have breached the protections afforded you under the law.

[@TMxl-w5t]

@@gallagher68 Do you seriously think, Keith is totally unaware of the any legal risks involved.? LOL

[@andrewhorsburgh2549]

There are some moaners out there. In New Zealand we have a saying about moaners but cant print it on KZbin. Good on you Keith, love your channel.

[@cornnatron3030]

those are a unwritten rule for yt comment if a creator cant cope/handle those its best to quit early else you end up like fouseytube lol it is sad but true . as a creator you have to be thickskinned and dont care about comments tbh . you can still awnser questions if it is really needed but most times the community would answer anyways and stupid/ridiculous questions shouldnt get any attention . would you for example help me if i were to ask you why is 2+2 4 and why is it not 7? or why is why spelled why and not wy or wi lol.

[@tlum4081]

Slap dash "engineering" is so dangerous. Yes people "moaning" are correct to point out the danger. I hope everyone in New Zealand isn't stupid.

[@dl2122d]

nice job

[@JASPACB750RR]

Capacity wouldn’t be my concern with this setup. I’d be more worried about the thing cocking at an angle and the whole assembly falls from the ceiling. Standard mounting like this [ ] it want to self center on the I beams tapered bottoms, kinda like train axels/wheels. Running like this ]---[ there is nothing preventing it from pushing to one side or the other, or even twisting slightly and just falling out. Hopefully that made sense.

[@jamesbonnema1041]

I do things that would put osha in maniacle fits, but remind myself theres no workmans comp at home!

[@fasousa4798]

just a quick recomendation when using roller bearings on a steady rest. Should use a piece of cardboard inbetween the cut and the rest to prevent chips from jumping into the rollers path. If that happens its going to be bad.

[@garybrenner6236]

And before anything, he should cut a "steady band" for those rollers to ride on, then he cuts the wrong thread he butchers everything he works on! It's best to just watch his work for the laughs!

[@fasousa4798]

@@garybrenner6236 Don't know if the bar is rectified. If so no need for that. If not then yes should have a circular groove for the bearings to ride on and not chatter the steady rest

[@tomswindler64]

Nice,something different 👍👍👍😎😎😎

[@davidc6510]

Nice work Keith getting another job ticked off the list. Just for thought .... The load capacity of that hoist will drop by a minimum of the ratio in the change in span from original to new span of the the wheels. For context if the increase in span was 4 times then the hoist rated at 2000# would now be 500#. The change in displacement at the mid span under max load will change by the 4th power of the change in span. For context the change in deflection at mid span would be 4x4x4x4=256 times more which could result in the wheels attempting to pull themselves inward and possibly off the tracks. As mentioned by other viewers the change in span can change the fit and function of the trolly and I-beams that could cause the trolly to fall out of the suspended I-beams depending on how the client uses the modified mechanism and the level of load it is intended to bear.

[@WobblycogsUk]

What stops the trolley from slipping out from between the two I beams?

[@--_DJ_--]

One would hope the beams are braced together. This setup strikes me as a bad idea though.

[@stevedunford7632]

Whilst an apprentice I also had a Morse taper drop out. This was a drill chuck including a 1/8th drill bit. In my case it didn't drop out straight away it waited until I was removing the piece from the vise. Who guessed correctly that the 1/8th drill bit went right through my hand? The tetanus jab was the most painful bit.

[@TheFreshmanWIT]

I'm suspicious about the design change, but this is a very much "not my garage" kinda project. One thing I DID notice, did you 'castle' the wrong side of that nut? Those looked like directional nuts (with the 'flat ring' on one side for pushing up against the washer/surface/etc), and wrench-chamfers on the other side. It looked like the 'flat ring' was 'up' when you cut it on the castle nut, then when you went to assemble it, the wrench-chamfers (for getting the wrench on easier) was against the plate.

[@ellieprice363]

Another custom project completed. I’m surprised that you could mill those castle slots full depth at that speed without breaking the cutter. I believe it would have to be a new solid carbide four flute to machine those deep cuts without coolant.

[@TheFreshmanWIT]

I saw that too! I was like, holy crap, he's BURYING that end mill! If _I_ tried that I'd have snapped the endmill before it even touched the nut.

[@mapstardamo1624]

When threading there was quite a bit of deflection on the bar Keith? The centre was only revolving when the single point tool cut into the workpiece as though it wasn't tight up?

[@masteruniverse3506]

Fun stuff

[@jeffreylee7184]

That modification is a bad deal. Might make a good clothes hanger, that’s about it. The tread on trolley wheels are tapered to match the angle on the beam flange. Rolling the half trolley under load will tend to spread the parallel beams. Hanging half a trolley off one flange of a beam will tend to twist the beam in torsion. Not a good idea. The beam should be loaded directly downward thru the centroid of the section. The correct configuration requires 2 or more pairs of opposing trolley wheels on the opposing beam flanges. Everything going on helps the trolleys escape the flanges and crash to the floor. The 1.5 diameter bar in between is a very poor section to use as a beam in bending. This makes the situation even worse. The correct way to do this is to pick up two more trolleys to run independently on the parallel beams. Hang a 36 length of beam off the two trolleys on the main beams. Hang the load trolley on the underslung cross beam. It will work like a gantry crane except manually operated. I bought a complete manual gantry kit many years ago. Worked great in my barn.

[@cannotbeleftblank6027]

Even worse, if one wheel gets stuck for whatever reason, the trolley will just pop out of the beams with the slightest tug.

[@robertlevine2152]

You have recommended a practical solution for the customer's change. In general, unless you are capable of doing both static and dynamic loads, it is best to have a civil engineer do the necessary calculations for his certification, including restrictions, if any. Changes like this one will not only void warranties, it can void insurance policies. I have witnessed the testing of hundreds of padeyes, lift points, crane and trolley rails and ship's cranes. It is hard enough in the shipyard to make sure lifting gear is installed as intended. It is much harder to identify changes made by the crew over time. I have seen installations that if used would have overloaded the support structure. When someone says the derated the load. Did they included the change in weights and the distribution? How did they account for distribution of the loads? If the add a second rail did they consider the weight of the new rail. Did they consider the moments on the beams? What is the new factor of safety? You need to be careful when making changes.g

[@rickv1007]

What legal liability would Keith may have if this ends badly? In the US the procedure is usually to sue anyone involved and sort it out later. With Keith doing full time work now it may be time to buy some liability insurance if he does not have any already.

[@jeffreylee7184]

I could certainly calculate whatever is needed but I wouldn’t do it for anyone but myself or my employer. This particular modification isn’t worthy of any calculations because it is inherently flawed from a mechanical engineering perspective. Keith should have declined on this job or any future job involving overhead lifting devices, slings, hoists, cranes, etc.

[@bigun447]

@jeffreylee7184 The customer should have gone back to HF, bought another trolley the same size, and then put a heavy-duty bar between the hooks on the trolleys, or even better welded a suspension bar between the 2 trolleys. Never too safe. When it fails it is a guarantee that you are under it. Hopefully, the widow can sell your stuff at good prices.

[@jerrytalley337]

I had a Monarch 10EE where I retired from. The only down side of it was the small 1 3/8 inch spindle bore. A fine tool room lathe though. My present lathe has a 2 1/8 spindle bore. Much better for longer pieces of 2 inch minus pieces.

[@grahammorgan9635]

Interesting reading the comments both for and against the methods Keith uses, it comes to mind “ What would Joe do?” , I did feel for that end mill making the castlelated nuts. I could hear it screaming in NZ . What would Joe do is from another Channel in Houston.

[@MrKotBonifacy]

1-3/8 / 6 TPI "in mm" would be ≈ 35 mm (just tad under) x 4.23 mm pitch - meaning, the closest metric equivalent would be M35x4 (outer nominal dia = 35 mm x 4 mm pitch). HOWEVER, above M10 there are virtually no odd sized threads commonly used, mainly even-sized ones - and then not even "every even number", so for threads "thirty and above" it's M30, M33, M36 & M39 (and then M42). Also, the pitch for metric thread is standardised - for both "regular" (aka "coarse") and "fine" threads (that doesn't mean you're not allowed to cut whatever combination you wish, it's just that only "standard" ones are produced en masse), and for regular M36 the pitch is indeed 4 mm, so I infer that while M36 thread has a NOMINAL outer diameter of 36 mm, in reality it is somewhat smaller, so "almost 35 mm also can". Yep, the metric menace - it should be banned and prohibited! Has ever anything good came out of France, eh? ;-)

[@carrollprice1213]

A Clausing Colchester series 8000 will cut metric if the half nut is left engaged the entire time.

[@MrKotBonifacy]

19:23 - I think I can see a problem with this modification. Firstly, if you want to make the load-bearing arm/ axle longer, you HAVE TO make it thicker. Much thicker, for THE SAME load. And I reckon that this "two I-beams in lieu of one" mod is meant to increase the lifting capacity, so "a double whammy" here. And then there's this issue of "riding a single I beam with rollers on its both sides" versus "riding it on ONE SIDE ONLY (the "inside" one) of two parallel I beams". In the first case the trolley is self-centring by design - i.e. if one side would like to move faster than the other one the trolley will go askew and it will "hug" the I beam even more (and thus slow don the overly enthusiastic side) - while in the second scenario any of the two sides going out of sync means "derailment". Well, unless I'm missing something here.

[@homerbuilt8037]

I once told the salesman, the customer considers you to be an expert "Please put your professional opinion in the quote." I had a boss tell me once that when things go wrong they sue everyone, especially the manufacturer.

[@jon1444208]

I'm not sure that the user has thought the forces through with the proposed modifications. If the intent was to increase the capacity by using two I-beams, the increased distance between the hangers may exceed the capacity of the axel without increasing its diameter. In addition, unless there is something to keep the trolley parallel to the beams, it may twist with a force exceeding the design of the hangers.

[@flarkel]

When threading, is there some automatic stop that kicks the tool out of the shaft or is Keith just stopping it at the same place every time?

[@ccrider5398]

I was hoping to see you drill the holes for the cotter pins. It is a tough job keeping a hand held electric drill in alignment on a round stock, let alone on a threaded round stock. Stay safe in the shop. Looking forward to more of these one episode projects! (Of course, we're waiting for that stoker engine too!).

[@alstonofalltrades3142]

I was wondering this. the handheld drill in grooves is often going to want to wonder down the valley of the threaded v groove. One possible solution is to get another nut and drill 2 holes smaller than the final hole. Thread this nut on to the right place. Then use a castle nut to tighten up against it. Drill through from both sides like when tunnelers meet up in the middle. Then send through the desired drill bit size all the way though to enlarge the hole.

[@truracer20]

I've drilled many threaded shafts for split pins, safety wire, etc. The key is a good center punch and to start off with a drill that fits between the threads. On small diameters and fine threads I'll often let the punch deform the threads on either side to help guide the drill. On 1 3/8-6 threads I'm sure a 1/8" drill will start just fine on a center punch. When center punching threaded shafts you want to use a thin punch, imagine an awl or a nail set, that is what the thin center punches are for. To align the hole when using a hand drill just drill from both sides using the castle nut as a guide.

[@garybrenner6236]

Don't hold your breath waiting for the Stoker Engine!

[@alstonofalltrades3142]

@@garybrenner6236 Dont worry our very keen machinist brethren! The Stoker engine is climbing his priority ladder very fastly as she is needed soon.

[@cbmsysmobile]

M36 x 4mm thread. You'd need to cut it to 1.378" and 6.35 tpi.

[@PatrickPoet]

after you make castle nuts does that make you the king of machinists?

[@helgew9008]

Some machinists choose to cut a groove at the shoulder before starting threading. That way, you don't need to rely on your ninja reflexes to avoid breaking the insert. Is there an advantage to omitting this this groove?

[@russkepler]

Unless you put a pretty wide groove you still need good reflexes to stop the tool, and a stop groove more than the thread pitch wide looks funny. I'd add something about a rounded stop groove reducing the chance of a stress riser but if you're sweating that you're dealing with a bad design (or an obsessive designer).

[@richardcorcoran1151]

You cut the bar to length but then you faced it making it shorter than target length. What am I missing?

[@mjwint]

Why no oil/fluid while cutting the castle nut grooves? My little mill eats endmills like my grandson eats fried shrimp (I swear he's going to bite a finger off one day).

[@bebo5558]

I would think those trolley halves need to be turned around so they pinch the two I-beams???

[@assessor1276]

43 year Mech Engineer here and while I wouldn’t hang 4000 lbs on that fishplate, that big round bar should have lots of capacity still and so as long as the usher has done some calculations (which are not complex), it should fine and nobody should be barking at you Keith. Well done - nice work and a happy new year to you and yours.

[@tlum4081]

I seriously think the customer is anything but an engineer. I'm also a 74 YO Mech Engineer with a specialty in stress analysis. Also have a Masters in EE in computer engineering. I'm appalled at the commenters downplaying the "re-engineering", actually the customer is dis-engineering the trolley and creating a dangerous situation. Hope Keith doesn't get caught up in the resulting lawsuits.

[@thefirstcalled]

Thank you!!!

[@dansvec5411]

Seems to me that a viewer asked you to make a part, not engineer a hoist. You simply made the part to his specs. All the comments by "experts" who don't have you tube channels of their own are irrelevant to the task at hand. Keep up the great videos, I watch them all and always learn something!

[@tlum4081]

I'm an engineer, "I" beams are poor in torsion which loading only 1 flange will twist it. The customer isn't always right. In this case the customer is clearly not an engineer and you are VERY WRONG!

[@haroldphipps3457]

The hell has having a KZbin channel have to knowing anything???? That is CLOSE to the stupidest comment I have seen on KZbin. And I occasionally watch Wranglerstar, so that's saying something.

[@dansvec5411]

Seriously? I'm so impressed that you are an engineer... so am I. I also own a factory. If you actually read my comment, you would realize that I'm saying that while the man with the hoist has a serious problem, Keith does not. He simply made a part to the specs provided and shot a video for us to enjoy. I personally wouldn't go anywhere near that hoist. If you were communicating with the person who owns the hoist rather than Keith (or me), your comment is spot on! Happy New Year

[@Tammy-un3ql]

👍👍👍👍

[@danrabenhorst2549]

he should put a trolley on both I beams and attached them together

[@stuartschaffner9744]

That was really interesting! I'm sorry, but I'm not a machinist. I am a bit confused about when you should/shouldn't/don't-have-to use lubrication when milling. I understand that iron castings contain a lot of carbon which serves as a lubricant, but what about those steel nuts?

[@TMxl-w5t]

A lot will depend on, what the cutting tool is made of..

[@deemstyle]

Keep in mind that a lot of machinists on KZbin don't use lubricant/cutting oil because it makes it harder to see on video. For advice on when to use cutting fluid, you'd want to look for a video specific on that topic because these sorts of project videos skirt those concerns for the sake of nicer looking videos. When I started machining, I was surprised to learn that even brass can benefit from cutting fluid (Tapmatic #1 Gold). Very generally speaking, unless it's cast iron- put cutting fluid on it.

[@garybrenner6236]

@@deemstyle This butcher is NOT a machinist!

[@jameswood9764]

I would not trust that modification design to lift and move something…. Needs a complete trolley setups on both I-beams ??

[@robertgarrett5009]

As a engineer, I can see this not ending well.

[@billspear7702]

I started getting Hiat regency skywalk vibes early on.

[@marcelpost4052]

The inch, a strange beast, it's true, With fractions that baffle and confuse. Three-fourths here, nine-sevenths there, A carpenter's nightmare, Oh, metric, how I long for you!

[@MrKotBonifacy]

Yeah, they are a nightmare and pain in the... posterior. But hey, these are *_FREEEEDOM_* units! Freeeedom! _"Give me freedom or give me death"_ , heh heh... ;-)

[@johnmorris3744]

The meter, they boast, is supreme, A decimal lover’s dream. But point two-five or point seven-three? It’s fractions in hiding, you see! And who’s converting mid-measure, I plea?

[@MrKotBonifacy]

@@johnmorris3744 "I prey" or "pray, say?" I'd rather finish with, but yes, the rhyme would suffer, and anyway that's just a li'l fly of mine in yer otherwise perfect pointment... I mean, "a poem" ;-) Seriously though... See, I have to make a confession. (They say honesty is good for your soul, but funnily enough they never say "for your finances" or "your social life", but I digress here... ;-) So, I am a metric person, through and through, since the day I was born (heck, in the hospital records my weight was entered in grams, and my height, or rather "length", was entered in centimetres), yet I'm strangely attracted.. No, not "attracted", nevah! - but I do find both an inch and a foot kinda... well, reasonable and "better suiting our human nature/ perception" - just like, well, left-hand traffic (again, I'm a right-hand traffic driver). But the "Imperial/ US Customary system" is in fact a poor joke of a system - I mean, it's no system at all ("a hodgepodge" I'd rather say, or "a motley crew") - that is if we agree that terms _"systematic"_ and _"system"_ do have indeed something in common. The main problem here is the total lack of any "systemacy" going from one unit to another, be it length or weight - twelve inches for a foot, but THREE feet for a yard (who ever still uses yards nowadays...?), and then... Yep, not a thousand, not somewhat odd (even if "even") "two thousands" - heck, not even "moderately reasonable, sorta-kinda to a degree" one and half thousand - no, let's make it.. how about 1760? Makes sense, eh? : ) Wha?! Oh, yer effing ingrates, that's does it! That'd be for a "land mile" ONLY, and you'll have ANOTHER mile, nautical one to the boot - so now shut the eff up and bear with it! (Or, "warum einfach wenn's auch kompliziert geht" as Germans used to say... ;-) But I digress here (...again - just as I always do ;-) so anyway, no, a metre IS NOT "supreme" (nor "superior") to the inch nor to the foot (in fact I'd say IN CERTAIN aspects/ applications it may even be seen as inferior - the same, however DOES NOT apply, IMO, to "imperial" weight units), but SI has a "system" in it _(Système International)_ and it is indeed both "a PROPER SYSTEM" and it is "international" too. The base length unit is a metre and 1mm = 0.001 m. 1 µm = 0.001 mm - or 0.000000001 km, which is (the kilometre) a thousand meters (which is in the name, as "kilo" means "thousand" - ditto for a centimetre). And if you want to know how many millimetres is in one kilometre you just look at the "power of ten" and add zeroes (or move the decimal point) - so a thousand millimetres for one metre, again thousand "up", so he answer is ONE MILLION. Easy peasy, "look ma, no feet"... erm, I meant "no hands", of course. (Try that with inches, feet and miles...) And while another human-orientated counting system was superior for the task and purpose it was meant to serve, we've abandoned it long ago too. Yes, a dozen can be EASILY divided into "full" ("natural") numbers - a half (6), a quarter (3), a third (4) and a sixth (2) - and then a twelfth (1) - while "10" can be divided only in half, in fifth and in tenth, but then "that's about it". And while at it - 0.25 or 0.73 are fractions not in any "hiding", but "in plain sight, for all to see" - only they are "decimal-base fractions" as opposed to "power of two base fractions". And yes, I know that "you know", and if you ask me why I wrote all of this, the answer is... Well, dunno myself : ) But if you find it boring just skip it altogether, and I should said that right at the beginning, but then "better late than never" as my auntie used to say whenever she was late for a train... ;-) Cheers!

[@donhuebert9151]

When you started the project I thought those castle nuts looked suspiciously like the nuts from the rear axles of an old beetle. Now that I see they have metric threads I am sure of it.

[@Blue.4D2]

⭐🙂👍

[@calvinculpalt]

Holy audio

[@Ervan-l9v]

Surprised you was able to cut 1/2" deep with a 1/4" end mill without breaking it.

[@W4BIN]

I am surprised that he cut the castle on the side of the nut that I consider to be the bottom or contact side. Ron W4BIN

[@kevinwayne7546]

a trolley between 2 i beams introduces a twisting forces that can not be properly stopped! just use a larger single I beam!

[@tlum4081]

Yes, the "customer" is playing with disaster.

[@chrissmith513]

It's going to be O K 😊😊😊

[@SciPunk215]

This was a great project. I would be lying if I said I wasn't disappointed, though. Until now, Keith always said he CAN work in metric, he just prefers to use standard American units. This is the first time I heard him say he CAN NOT do something because it is metric. I'm sorry, but in 2024 that should not be the case. That's all I'll say about it... Keith and I can go on being friends after this.

[@deemstyle]

What he said was "...with my lathe (taps on the lathe in use) I do not have the ability to cut metric threads." In other words, the particular lathe he was setup on can't cut metric threads. I would imagine he has other lathes that can (though I have no way to confirm). I suspect he just didn't want to replicate the setup on a different lathe.

[@ruben_balea]

It is normal that an American lathe cannot cut all metric threads because it doesn't have enough gears to select the proper pitch, and metric lathes have the same problem with imperial threads...

[@Sizukun1]

Keith may have to seek out a new lathe to cut some metric stuff! Seems like this isn't the first time he's lamented not being able to cut metric. Sounds like a good justification to me!

[@haroldphipps3457]

Nope, better to just do imperial.

[@RROOBBWWAANN]

2:24 Have you changed/sharpened your band saw?

[@Ervan-l9v]

If I understand the intended application it doesn't sound like a good idea for safety reasons but I am sure you know that. Just doing what the customer requested. Unfortunately when someone gets injured the lawyers come after everyone involved. Be careful! CYA.

[@TheUncleRuckus]

🤦 No they don't, this would solely be on the End User! 🙄

[@MartsGarage]

Nice job Keith. I do agree that the design is very unsafe. Imagine the scenario where there was a load on it and it was being rolled along the girders. if one side jammed the other side might carry on and fall off the flange. I would not use that design. It is a flawed design.

[@texxasal]

Feeds, Speeds, Cutter/Insert please, since you're over-dubbing the audio anyway? Thanks.

[@TMxl-w5t]

In a home workshop, most people will use their eyes and ears, for the feed and speeds, and what inserts/cutters you happen to have.. 👍

[@peterhobson3262]

If Keith lubed his mill bits they would stay sharp longer.

[@soanophil]

Yeah, I notice that he rarely uses lubricants on any cutting operations

[@Paul-FrancisB]

Most KZbin machinists do the same to be video viewer friendly and keep the mess off the camera lens.

[@cornnatron3030]

but then he would never get through all those cutters he has.

[@bigun447]

Maybe Anchor Lube failed to send him more free stuff. All of the free stuff they give to internet influencers just drives up the price to me.

[@garybrenner6236]

This guy is just trying to impersonate a "machinist"!

[@davidcole6236]

Keith: I think you win the award for the first instance of a pro machinist on KZbin to leave the key in a lathe chuck while not holding it! Also, the wheel center distance is too narrow for the beam centers to be that far apart for an inside-the-flange suspension like this. Far too easy for the assembly to rotate out of position and come loose. Everything’s a SPRING, especially at that length to width ratio!

[@garybrenner6236]

He dose that and many other unsafe things constantly, like pouring molten metal wearing shorts! And please, don't call this guy a machinist, it's an insult!

[@royreynolds108]

@@garybrenner6236 And you are no genius. Where are your videos of projects?

[@haroldphipps3457]

​@@royreynolds108, he doesn't need a KZbin channel to prove he is an ass. He does a spectacular job of proving it here on Keith's channel. Such a sorry existence.

[@TheUncleRuckus]

You should've drilled the holes for the cotter pins you know how much of pain in the ass it is to hand drill through threads like that. Doesn't take much to shoot an Email or pick up the phone to ask. 🤷 Other than that I have no issues with what you did, you made the part to the customers specs and if the safety Nazis get their panties in a bunch oh well.

[@georgelawton9075]

Let them disagree. They know more than the rest of us!😅

[@joosteekhof3089]

I have so many questions: how would you rate the WLL? The stability between two different I beams, un even loading ? In Europe the manufacturer is responsible for the safety. I hope you have the responsibility covered. Having said that I do which everyone a happy peaceful new year in good health.

[@johna7075]

Modifying any lifting equipment is going to be fraught with safety issues, the best Keith can do is say that he's manufacturing a part to someone else's spec. and takes no responsibility for the engineering in the same way that a beam supplier is not responsible for a failure if the beam is overloaded because the structural engineer made a mistake.

[@TMxl-w5t]

Fortunately we in the UK, have left this type of madness behind..

[@jacksons1010]

@@TMxl-w5t The UK may have left regulatory concerns behind, but the fact that the modification appears unsafe remains. If someone is injured, the legal responsibility remains regardless of the lack of regulations intended to prevent the injury.

[@TMxl-w5t]

@@jacksons1010 What happens in "my shed" is of no concern of anyone else. Do you have shed inspectors in europe?? LOL..

[@jacksons1010]

@@TMxl-w5t You are utterly missing the point, sir. If you build an unsafe device that leads to an injury, you will be held liable. Politics has nothing to do with this.

[@bigun447]

Castle nut or Castelated nut. We were taught the latter name. P.S. Hope you got him to sign a release of liability which might save you pain later as those who debate the safety of the customer's design modification might be correct. It is the old "I will never drive it over 60 mph" but when it crashed at 80 mph the customer got a lawyer to sue you for not making it safe at 80 mph.

[@EDesigns_FL]

Keith, please normalize the audio during editing. The Stable Volume function is unavailable on your videos because of this deficiency.

[@katelights]

yeah his volume is often all over the place. if im watching late I keep having to turn the volume up and down to hear him talk but not wake people with machine noises.

[@minimal28]

And also rethink your camera position for lathe turning - either the tool post (or your head ) obscures the actual cutting tool!

[@daleburrell6273]

...well, "ya CAN'T please EVERYBODY!!!"

[@AV8T0R401]

Geez give the guy a break!! This isn't Paramount Pictures! Keith always love your videos, keep up the great work!

[@katelights]

@@AV8T0R401 excuse me for wanting the video to be watchable

[@paulbreaks7680]

That is very dangerous what he’s doing The web of the I-beam wheel flex and the wheels Will slide off The flange he needs to add 2 trollies One on either side of the 2 beams with a spreader in between I recommend you do not shipping these parts

[@tlum4081]

@dansvec5411 is wrong and you @paulbreaks7680 are right. I'm an engineer.