Even though i don't use acme rod, there's nothing stopping you from using it in your own projects. You can also use it instead of the standard stuff in the plans I produce. Whatever floats your boat!
@emeltea334 жыл бұрын
A potential source: trailer jacks. I'm not talking new either. The innards are well greased (preserved), yet the tubes often rust out, or get bent. However, these are probably more abundant in coastal areas. Perhaps RV and moving rental stores.
@koljafornia4 жыл бұрын
Din6334 nut will work better?
@Yonatan244 жыл бұрын
@@emeltea33 Also gate opener linear actuators, those are great too
@MarkParkTech4 жыл бұрын
I personally use ACME, because its more fit to purpose when handling traversal loads, due to the trapezoidal shape, they handle the load better, which leads to smoother traversal. That said, ACME rod is readily available where I live, if it weren't I'd probably just use standard threaded rod like you. Because although ACME is better on a technical level, nothing I build is so critical that it absolutely requires ACME to be good enough.
@blakeworsham30264 жыл бұрын
Perhaps I missed it but did you discuss the grade of the threaded rod? IME the home store stuff is grade 5 or perhaps lower and bends and galls easily. Grade 8 or higher from a fastener supplier is less prone to this type of failure.
@BCElginTex4 жыл бұрын
Isn't ACME the company that makes all of those defective kits on the Roadrunner show?
@PikkaBird3 жыл бұрын
They're not defective, it's mostly user error and plain ol' bad luck.
@gs-mt8zd4 жыл бұрын
I think it's always good when a KZbin creator shows their mistakes or problems with their builds, we can all learn from it. Perfection is only in the editing.
@juanferrari42494 жыл бұрын
John , remember all Wile e Coyote contraptions and failures in his attempt to catch the road runner ? Acme products ! 😀
@andrewmortimer33174 жыл бұрын
I appreciate the thought that goes into sourcing materials commonly available. It's nice to see the failure analysis and development.
@MrBonners4 жыл бұрын
failure analysis is to use the tool.
@howder19514 жыл бұрын
Good subject John, threaded rod and nuts come in a variety of material and classes of fit, as you demonstrated with the nut. Simple engineering for the diy''er is just go to a bigger size if you can't control the quality, also you are definitely on the right track if you apply habitual failure analysis whenever something fails. Enjoyed the video, looking forward to future instalments, cheers!
@wallacesheckells70954 жыл бұрын
All I can say is Thank You for your videos. The good and the bad. And I like the fact that you design your projects with simple things that are on the shelf.
@RambozoClown4 жыл бұрын
ACME? - ACYOU!
@bogdanbelunski70223 жыл бұрын
ACWE
@daifeichu4 жыл бұрын
I saw this video coming as soon as I read all the "You should have used an acme rod John." posts. Don't people read the comments to see if what they are going to post has already been posted? There were dozens of the acme posts.
@zaywas4 жыл бұрын
But this way he's had the opportunity to create another video that has a lot of algorythm feeding interactions ( your post included ). This is how money on YT are being made.
@zaywas4 жыл бұрын
That slot for the bearings, that you initially made linear ( then made it curved ) you could make linear again but longer. This way the stress on the thread would be spread to wider area of the rod. Then you could use smaller diameter knob ( to compensate the time needed to pick up the blade ). Sorry for imprefect english.
@TokyoCraftsman4 жыл бұрын
I have to admit that I thought "Why not use an acme threaded rod" but I knew that you would have a reason, a history, etc for why you used regular threaded rod. The other thought I had was "Why not use a coupling nut". Good explanation of how you think about the amazing things you build. I for one appreciate the look into how you think about your designs. Cheers from Tokyo! Stu
@craftershomeandgarden61514 жыл бұрын
Thanks John, when I watched your previous video (I don't know when either!), my first thought was ACME thread as well. My second thought was Johns pretty smart, I'm sure he thought about that and decided against it. And here you are, reading my mind... I'm glad you explained your logic, and I agree, Keep It Simple Stu*id!
@7x70.7 ай бұрын
Thanks for the video! You probably already know this. But Princess auto sells threaded rods a lot cheaper than Home Depot or Rona. Rona is selling 1" threaded rod 36" long for $33. And Princess auto sells the same for $19. I bought it yesterday. I'm assuming Habor Freight in US would be equivalent to Princess auto in Canada.
@johnfithian-franks82764 жыл бұрын
Hi John, I live in the UK so I have very little knowledge of what is out there in the world; however, I used a scaffold coupling that has a very strong thread on it and a nut that goes with it. As scaffold is used all over the world I would assume (and yes I know the acromion for assume) that these items can be found without too much hassle. I have even used the nut and screw to make expectant die & tap sets to make wooden lengths. I have used your plans also and used the bar that use use without any problems.
@sandybelton46973 жыл бұрын
Did I miss the vid about the construction adhesive?
@Bluuplanet4 жыл бұрын
I saw another guy on YT that uses threaded rod with real square ACME threads and he doesnt buy them either. He takes them out of old automobile scissors jacks. Square threads work better than triangular threads for this stuff. It was the post-apocalyptic inventor.
@MarkH103 жыл бұрын
That's a fantastic channel. You are right, old equipment built for lifting stress is different than equipment built for connecting stress.
@paulheitkemper15594 жыл бұрын
I think part of the original problem could be that you didn't check for manufacturing variation when you bought your parts? If you grab any parts at random, there's a chance that the nut will be on the larger size of the acceptable tolerance, and the rod could be on the smaller side of the acceptable tolerance. Then you end up with less thread engagement and a sloppy fit- which you demonstrated.
@michaelosmon4 жыл бұрын
I install gate openers, many brands of electronic actuator arms have 24” - 36” of acme threaded rod in them. I’ve thrown so many in the trash. Find a company who works on gates in your area and ask the guys who work there if they’ll set some aside for you. If you offer them lunch or beer, it’s pretty likely they’ll help you out. Also, I use 3/4” coupling nuts with 10” bolts and a lock nut to make adjustable positive stops on gates all the time. I weld the coupling nut to the gate and set the bolt to a depth that when closing or opening, the bolt head hits something solid and it makes the gate stop in perfect alignment. Those tapered couplers you were talking about I’ve never seen them anywhere near the threaded rod in the store, only in the plumbing dept and in the electrical dept for rigid pipe, but these are typically not shaped like a nut. (I cut these couplers in half all the time to weld onto a post over a hole I drilled so I can attach sealtite fittings to run wire for accessories.) Also, maybe I missed it but did you say on the plumbing/electrical couplers that one side is threaded the reverse direction of the other? The couplers on the shelf by the threaded rod will easily thread all the way through the rod. They work great for welding onto something, IMO. Thanks for the lesson on nuts, sir. I always enjoy your videos
@dmaifred4 жыл бұрын
Hey Buddy, what happened to property hunting. Was kinda fun seeing the area. Cheers from a Canuck living in Australia
@larryvergon67404 жыл бұрын
I don't know what's available in Canada, but I was in my local Tractor Supply Store, and my Rural King Store (a US midwest regional chain) yesterday; and both had threaded rod up through 1"-8 and the coupling nuts located in the hardware section (in the racks with metal stock of all sizes and shapes of steel and aluminum) of each store. I know both had threaded rod in 3 ft lengths and the Rural King also had 6 ft lengths (I didn't look that close for 6 ft lengths at TSC. All are standard Inch series coarse threads, so regular hex nuts are also readily available. Maybe you don't have those type of stores in your area, but Tractor Supply is pretty common in the states and there are many small regional chains of 'farm' stores here in the US.
@scottfreedoms95842 жыл бұрын
Were they ACME threaded though?
@angrytinkerer36094 жыл бұрын
there was a time when getting stuff like acme rods and nuts was a PITA, but now with ebay and amazon its just as easy as going to the store. I scratch build a CNC about 8yrs ago, same acme rods and nut since it was built, still no slop and just as accurate all these years later.
@UltranothingАй бұрын
If I were to pick an actor to play you in a movie about your life, I would choose Stephen Root.
@AgentWest4 жыл бұрын
The kind of larger coupling nuts i've seen here in the US are the kind that is threaded all the way through but is then bonked with a punch in the middle, creating a stop. So you have to either run a tap all the way through or drill out the punched spot. Smaller sizes (3/8" and below i think) are true all-thread. I do see an appeal of double nuts though. Easier to get, ready to use, and more importantly can be used to adjust backlash of the thing they are used in by placing a washer in between, then very lightly lightening both nuts into it. Use plastic or rubber washer if you want some 'give' in case the threaded rod is not perfect. This double nut backlash adjustment is even used in some metal working machines.
@JamesTatePa4 жыл бұрын
Do you find that grade 8 nuts are a better quality?
@lightmechanic23703 жыл бұрын
Sunday mornings I find lube definitely makes it better to screw longer without wearing out as quickly.
@MrBonners4 жыл бұрын
coupling nuts are great epoxied into mounting blocks like tail stock, pillow block type assemblies, heavy duty -ish 'T' nuts for hold downs (well nuts slip).
@jeffreythompson95494 жыл бұрын
I built a vise and wanted acme rod - it was available in ten foot lengths! I ended up buying a cheap trailer jockey wheel which also had a cast acme nut. Perfect.
@FullSendPrecision4 жыл бұрын
Just to be devils advocate... placing an order on McMaster carr is pretty painless... seeing as going into public big box stores these days is a nightmare all by itself.
@emeltea334 жыл бұрын
Haha, I thought this too, but figured it goes without saying.
@TWX11384 жыл бұрын
If one tends to think visually, catalogs like Grainger and McMaster-Carr aren't as intuitive, even if one has the dead-tree edition. I do a fair share of both, there have been times that the catalog-order solution requires more effort to conceptualize than I'm willing to invest. Other times I know that there isn't a locally-available solution or isn't one that can be achieved without going to expensive local specialty places, such that taking the time to work it out with catalogs and fitment/compatibility cross-references needed.
@KipdoesStuff4 жыл бұрын
@@TWX1138 Very true, many times I've thrown the Grainger catalog across the room and drove to the hardware store and got the next best thing.
@FullSendPrecision4 жыл бұрын
TWX1138 McMaster has great images of the things they sell! Look up acme threaded rod and you’ll find good stuff, cheap stuff, precision stuff, all with illustrated photos
@emeltea334 жыл бұрын
I need an acme nut for a vise, where/how do I get that?
@do_hickey3 жыл бұрын
Regarding slop in the fit of your threads - there are different classes of threading, 1, 2, and 3, which is the loosest (easiest to assemble) to the tightest (and more precise, also more expensive), You typically see it at the end of the thread spec. E.g. 3/8-16 UNC 2A is a general purpose 3/8 inch male thread with 16 threads per inch (the nut would be 2B instead). If you want a tighter fit, see if your local hardware store carries 3A rod and 3B nuts.
@englebig4 жыл бұрын
My 2c: 1) lubrication is important, but avoid oil that will make wood dust stick to the threads, wood dust can be very abrasive. 2) the advantage of a coupling nut is that the tread is consistent over the length of the nut. With two nuts it'll be hard to avoid one nut doing all the work until it's worn. My table saw also stripped out and I fixed it with (M10!) threaded rod and a coupling nut, it hasn't failed yet...
@1pcfred4 жыл бұрын
You'd think oil would be a problem. But in practice it really isn't. Steel is a lot harder than wood is. I've never found a dry lube that equals the performance of oil. I've gone through it all myself on my table saw. Just oil the rods. If it is good enough for chainsaws it is good enough for me. And yeah chainsaw bar oil is my lube of choice in those applications. I always have it.
@englebig3 жыл бұрын
@@1pcfred I'm not sure, but I think it can be a problem. I had sawn a lot of Azobe (red ironwood), which is notorious for containing crystallized minerals, and when the threads failed they were full of Azobe dust and very worn. I *think* the wood dust contributed to the wearing.
@andrewFull3 жыл бұрын
Appreciated.
@Yonatan244 жыл бұрын
Isn't a precision adjustment only important for the blade angle adjustment? It would seem like the blade high adjustment mechanism could be simple, like a circular saw. I guess if you're not making dadoes/box joints, no?
@BudgetBuiltDiesel4 жыл бұрын
We had this problem at work with a valve spring compressor. It uses 11/16ths all thread to compress the 4 springs. Probably somewhere in 600-800lb spring force. We switched it over to grade 8 all thread and never had a problem since...... but obviously not available at your local big box store.
@1pcfred4 жыл бұрын
11/16ths is an odd thread size. The last common thread in 1/16ths is 9/16ths. After that the sizes go up in 1/8ths. So after 9/16ths the next size is 5/8ths then comes 3/4s Which leaves 11/16ths out.
@BudgetBuiltDiesel4 жыл бұрын
@@1pcfred Ya. I don’t know why I put 11/16. It’s actually 7/16 and uses a 11/16 socket. That’s where my 11/16 came from. Lol.
@1pcfred4 жыл бұрын
@@BudgetBuiltDiesel 7/16 is a SAE thread. Still not a popular size though. It sits between 3/8" and 1/2" which are both very popular. The common head size on 7/16" is 5/8s I have a bin of them next to me. I stock all sizes from 2-56 up to 1-8 I'd have had to get up for a 2-56 though. The 1/4-20 to 5/8-11 bins are within arms length. I didn't even have to stretch to get some 7/16-14 really.
@BudgetBuiltDiesel4 жыл бұрын
@@1pcfred The nut takes is 11/16 size for a 7/16-14. Where the bolt head for a 7/16-14 is 5/8. We use the nuts with all thread and not the bolt.
@1pcfred4 жыл бұрын
@@BudgetBuiltDiesel let me check that out. The bin of nuts is right under the bolts. You're right! Probably the only person on the net that is right today. It is such a rare occurrence anymore that I'm shocked when it happens. There's usually two nut flat sizes for every thread. There's the regular size then an oversize. If I pulled the bin out I might have an oversize nut in it. I'm not getting up right now though. Sometimes I do store the oversized ones separately. But I wouldn't for 7/16-14 It is such a goofball thread I don't have much of that hardware at all.
@larryriehle1664 жыл бұрын
You should have an FASTEN-All up there
@drawlele4 жыл бұрын
Ok so that cleared it up for me. I get wanting to put something out that anyone can build with easily obtained materials that do not cost very much.
@Captainwonderlad4 жыл бұрын
Maybe u could use epoxy to reinforce the threads in the nut. Insert idea on how to do that here.
@st170ish4 жыл бұрын
Grab two nuts put them on your thread about 1/16th apart and tack weld them on 3 of the 6 sides, it will be very tight to start with... with a old chisel or screwdriver hammer the nuts between the unwelded facets to slightly spread to loosen... if it comes too loose a slight tap of a hammer on the threaded sides to tighten again.
@NAMQUOCTHINH3 жыл бұрын
High quality products
@ianjefferson95184 жыл бұрын
Amazon and Ebay are easy sources for stuff like acme rod and nuts these days.
@Yonatan244 жыл бұрын
Linear actuators usually have acme threaded rods too.
@daifeichu4 жыл бұрын
If you live in the USA Amazon and Ebay are easy sources for the acme rod. Outside of the US shipping costs are a lot for some places.
@1pcfred4 жыл бұрын
Acme has higher efficiency than universal all thread thread. Which is why you are more likely to see acme thread in applications where movement is important. As I can recall acme is 40% efficient and all thread is 10% A ball screw is 90% efficient. That's the range.
@WoodUCreate4 жыл бұрын
I can understand your desire to source the materials locally, but, and I'm not sure this is true, is Acme threaded rod better? When you're building something that you'd like to minimize the chances of failure, my guess is Acme rods use a better/harder steel. I know I could be wrong on this but from my limited use, simple threaded rods/bolts use cheaper softer "junk" china metal.
@1pcfred4 жыл бұрын
The geometry of the threads is the main factor. Trapezoidal threads move better than V shape all thread does. 400% better. What's going to grab more sharp teeth or flat teeth? There's more to it than that but that's part of it.
@akbychoice4 жыл бұрын
Scaffolding levelers are available in most places, though I’m with you. Stay with standards to keep it easy and simple.
@TheHardiya3 жыл бұрын
Thank you very much for that 😃🙏
@CanadianOG3 жыл бұрын
ACME threads are great because they don't strip from consistent use. Normal threads are not made for consistent use.
@chrisgriffith15734 жыл бұрын
Oh! Now that you mention ACME threaded rods... Let me tell you all about it...
@IMKINDOFABIGDEAL133 жыл бұрын
That is actually not ACME thread. Acme thread is the pattern used on machine tools that is flat on the ridges and valleys. That is standard all thread rod. Acme thread is trapezoidal.
@photog15293 жыл бұрын
Threaded rod and fasteners at the big box stores are made in China. Nothing more needs to be said with regard to tolerances and fit.
@mikerestad37443 жыл бұрын
3:40 Precisely why engineers exist.
@IBuildItScrapBin3 жыл бұрын
Go watch their videos. then.
@JimDockrellWatertone4 жыл бұрын
Do you find the number of people interested in your rod to be disturbing?...lol.
@Relaxitsonlyacomment2 жыл бұрын
Material and quality control is nothing like it used to be 5/10 years ago.
@WobblycogsUk4 жыл бұрын
It's a fair point but I can't help feeling if you are building your own table saw you are probably not all that concerned about getting on the internet and ordering up a length of acme rod.
@73superglide624 жыл бұрын
Eventhing works or there
@koljafornia4 жыл бұрын
Din6334 nut will work better?
@MrBonners4 жыл бұрын
cut from cheap 'c' clamps, old vice, source of Acme shaft and threaded bits ground into nuts if one really must insist.
@ozzyozzy67283 жыл бұрын
Meep meep
@David-hm9ic4 жыл бұрын
Your reasoning is certainly valid but buying Acme threaded parts is no harder than ordering a set of your plans. I couldn't buy your plans at the store either so I ordered them. Same with Acme stuff. I've lived in small rural towns and in major metro areas so I understand the difference when it comes to specialty parts. There are plenty of places that will deliver to your door. The failure is no surprise with a loose fitting nut. What percentage of engagement do you think you have with such a loose fitting nut? Not much. Add the soft steel to the equation and failure is imminent. Sure, you have to order Acme threaded components but they're as close as eBay. Take this as a positive comment. I really like your channels.
@IBuildItScrapBin4 жыл бұрын
My plans aren't shipped. There are places in the world where people buy my plans, but wouldn't trust the delivery system to order goods online. Or the shipping is expensive. Or the import duty is expensive.
@David-hm9ic4 жыл бұрын
@@IBuildItScrapBin Fair enough. Some of the small towns I've lived in were pretty third world but they were still in the US so stuff would arrive eventually. I didn't consider the viewers with delivery difficulties. Sorry. I know your plans are delivered by the Internet. I've bought some. Thanks for your great content.
@fgovino4 жыл бұрын
Using 2 nuts instead of 1 could help?
@scottfreedoms95842 жыл бұрын
I don't think the Sicario sample at the end of this video works. Nothing in this video screams wolves.
@MrDiJ19803 жыл бұрын
Half way through and I am confused about what your going on about and if a point is ever going to be made.
@scor44011 ай бұрын
People watching this when you oval shape a nut you will have less surface contact and this will cause failure faster.
@moww12763 жыл бұрын
Getting to..................................................................................................................the point
@finn1274 жыл бұрын
deez nutz?
@alans18164 жыл бұрын
Ok, that makes sense. It's exactly the same as a hand tool woodworker not using a tablesaw: it's just not the way you want to work. Your fix likely will be fine. I'm curious whether a bored and tapped block of UHMW polyethylene would work as a nut. It is self-lubricating, certainly wouldn't wear the threaded rod, and is actually very resistant to wear itself. The biggest question would be strength. And it's widely available in cutting boards. I don't expect you to try it just to sate my curiosity.
@1pcfred4 жыл бұрын
If you're going to make HDPE nuts I find you're better off going thicker than metal. Cutting boards are usually only about a half of an inch thick so a bit on the thin side. I use HDPE nuts as lead nuts on my CNC machine. I think the nuts I use are about an inch tall? They're pretty strong. It is surprising how well threads work in just wood. Especially a hardwood like say maple. Better than most would imagine. Threads grab.
@rickfletcher83894 жыл бұрын
A lot of talk about nuts - loose, tight, wobbly, coupling, hammering to make them oval, glueing in with epoxy - hmmm 🤔
@Mr_Rick4 жыл бұрын
Yeah... Really. {yawn}
@zaywas4 жыл бұрын
Hammering them... gosh, i hope nobody do that to mine.
@kraklakvakve4 жыл бұрын
TLDW: He did not use ACME threads because ACME thread rods may be specialty parts not available universally. Regular thread rods have worked fine before.
@MotherAlgorithm2 жыл бұрын
Ta
@MrJohnnyboyrebel4 жыл бұрын
One of the reasons many of us are your fans and buy your plans is your use of commonly available parts.
@TWX11384 жыл бұрын
I have some ideas for where to locally buy specialty parts like ACME thread, but it's still more expensive, the places are only open banker's hours, and when I don't know the vernacular of the specialty stores it can be awkward to trying explain what I want or need, especially when nothing is out on-display and it's all behind the counter or in the warehouse. Additionally sometimes these places want one to have an account in order to do business with them. There have been times I've gone to Graybar, or Grainger, or CSC/Wesco, but I'd rather go to Ace or Lowes because I have the luxury of digging through the available supplies myself. Sometimes I end up significantly revising my ideas while I'm browsing the available materials because material selection might itself provide for inspiration that I hadn't had when working it out on paper.
@photog15293 жыл бұрын
McMaster-Carr...and they'll ship to your home...account not necessary.
@DKWalser4 жыл бұрын
I would never use acme threads. Such threads always fail in unexpected ways and at the worst possible time. Acme produces most of the products Wile E. Coyote uses in his attempts to catch Roadrunner. Whether its a giant rubber band, rocket-powered roller skates, or (I'm sure) threads, Acme's products always boomerang and end up hurting Wile E. Coyote. (I'm not sure how Acme stays in business.)
@73superglide624 жыл бұрын
Cheap john
@KipdoesStuff4 жыл бұрын
I watched the video all the way through (my table saw broke) and I agreed with your fix. Then I read the comments and laughed the entire time. I made my mistake long ago when I suggested putting the air compressor outside (I would do it but John won't). I now think a little longer before suggesting anything. 99% of the time it is what you have already done or intend o do. Great talk John.
@andrewbieger50044 жыл бұрын
Great info on the use of coupling nuts, or the potential problems with their use. When you re worked the lift mechanism, you emphasized that application of grease. In your experience, does a dry lube hold up like a regular grease in similar applications? The lift/ tilt mechanism on my Delta TS needs cleaning and a relube several times a year, cause it gets gunked up with sawdust. Was curious if a dry lube keeps sawdust away better.
@murphymmc4 жыл бұрын
No problem with threaded rod. I've got two table saws (brand name) and neither utilizes Acme threads. A solution would be to get get a higher grade steel in the rod which arguably may have to be ordered or in the least, visit a vendor that carries higher grade bolts/all-thread. Most store carry grade 5 and grade 8 bolts, possibly they also carry a couple of grades of rod.
@tommoores15314 жыл бұрын
Regular threads are not intended to be constantly run in and out, but for a home built machine it should be a big deal to replace when it wears out
@tommoores15314 жыл бұрын
Sorry, it should NOT be a big deal
@LariFariYoutube4 жыл бұрын
Hmmm..very suspicious, the whole thing.. Maybe you had bad luck with the material. Usually the hardware shops dont sell the best quality^^... As far as i can tell, i never had such a incidence. I have built a post vise for metal working, using a M20 rod and i am abusing the hell out of it. I keep it lubricated and i can see no sign of wear on it.. Also i have built a solar tracker for my PV system. The M10 Rod + coupling nut (more threads) does well since 8 years now... Every day from east to west and back in the night time... Hmm..perhaps we have better treaded rods over here in Europe. ;)
@MaturePatriot4 жыл бұрын
4:40 The nut was Piss Wobbly Slack as doubleboost would say. How It's Made Nuts and Bolts kzbin.info/www/bejne/aZzblKpmbdWSpbs
@LBCAndrew Жыл бұрын
The thing is, using a standard threaded rod for applications where you need a much more robust thread is guaranteed to fail.
@shizzle51508 ай бұрын
@4:30 has to be the smoothest execution of "Deez Nuts" on youtube. And yea, non standardized crap sucks, I can't help but think a large portion of that sort of crap stems from asshole suppliers trying to ensure that they keep you / a company over a barrel. That's generally when there is some industry standard or rule of thumb that everyone else adheres to except company "Y" and it just so happens their shit is 3 times the others cost. Of course this is only realized after their product(s) have been implemented. Don't get me wrong, occasionally deviation from the norm is due to a improvement or value gained by someone who found a better way. More often than not though, it's to have proprietary shit that can't be easily replaced by a more cost effective solution. When you encounter bullshit like that you should refer them to deez nuts.
@fuzzy1dk4 жыл бұрын
I suspect the nut with the partially formed threads were just the result of the machine that forges the nut made the hole too big
@jameswilburn54063 жыл бұрын
I hear all the time about elitist claims of building precision into a given object. The reality is that even precision machinery is made by trial and error. Take for example the precision of fit of the piston to bore in an ordinary car engine. The fit of .0001 inch clearance will alow the piston to wipe the oil from the bore so that in 5000 miles of travel under load at 1500 RPM will go up and down the bore 7.5 million times and lose about a tablespoon of oil before recomended service. To achieve this level of precision is a matter of luck(statistics). You make millions of engines and make 4 to 8 times as many pistons and measure every bore and evey piston diameter (testing every one) and recording that information. To assemble the machine you then match the best psiton to the correct bore and there you have built an extreamly precise creation. This is no different than what you did here. I am sick to death of people that have never built anything or solved any problem on their own telling every one of us that have just how things MUST BE! To those I say dont think that what you think is fact is in fact a fact. Some of us know that isnt true . Dosent that make you a liar? Keep up the fight John but I think you will lose this one!
@Slugsie14 жыл бұрын
The number of things I see US and Canadian makers get by walking into their local big box store that I can only dream of finding in any store locally to me (UK) is really frustrating. Even when I can it's stupidly priced.
@johnrichy2k64 жыл бұрын
I find B&Q and screwfix tend to do alright for a lot of stuff, only rarely do I need to order online for something that the US makers are getting in their hardware stores
@Karanyoyo3 жыл бұрын
We are manufacturers of threaded rod and studs in high tensile. Must let us know if you got any requirement regarding it. We work non standard and custom made as well
@richardcranium34173 жыл бұрын
You’ve got Rona in Canada? We’ve got Rona too.
@navalfa7291 Жыл бұрын
Do you get them in metric sizes?
@RandomSmith4 жыл бұрын
I don't mind people showing things that go wrong. We learn by our mistakes and those of others. Normal threaded rod is a fraction the cost of acme rod and if it works, then fine.
@willyminime4 жыл бұрын
Here in italy we have untreated rods and nuts, they are just plain steel. They are stronger and more precise then the galvanized ones. Are they available in other countries?
@TWX11384 жыл бұрын
Normally coated fasteners are zinc-plated rather than galvanized in the United States. I expect Canada is similar. But your thought on surface-coating does bring up the interesting point about dimensionality. Sometimes no effort is made to account for reduced tolerances and parts fit poorly, sometimes only minimal effort is made in that excessive clearances are left prior to coating and parts fit poorly. AvE did a video comparing the various quality of fasteners, the cheaper fasteners tended to be over-spec as far as strength was concerned, while the more expensive ones tended to be right on-spec. The more expensive ones were easier to torque properly.
@alans18164 жыл бұрын
Galvanized means zinc coated.
@David-hm9ic4 жыл бұрын
@@alans1816 Galvanized and zinc plated as TWX1138 said are not the same thing. Zinc plating is very thin. Galvanized means dipped in molten zing and is much thicker.
@1pcfred4 жыл бұрын
@@TWX1138 galvanized is zinc. The other common plating is chromate. That's the gold colored hardware. Hardware comes in fit classes. It is supposed to be looser and tighter. What you're getting at a hardware store is class 1 fit. The sloppiest stuff going.
@flyingbeaver572 жыл бұрын
I can't help but agree with your comments about using ready rod. Any specialized-thread rod is pretty much unobtanium in northern Alberta, and I've been using ordinary plain vanilla threaded rod with a pair of ordinary nuts to make a traverser for 40+ years (not knowing until recently that I was "doing it all wrong"). I just had this ridiculous idea that if it worked, gave repeatability, and didn't leave me broke it was a Good Thing. I used to have quite a stock of ready rod, bought back around 1980 when it was still made in Canada. I've finally used most of that up, and the current hardware-store stuff is definitely not as well made, and the quality of the steel is a question mark. Like you I've always gone "up one size" when I've built threaded rod into a machine for traversing, lifting or whatever. Lately I've been looking around for some better quality stuff, and there is a metal supply shop not too far away who will sell to the consumer in small quantities. I've had better luck with that. I've tried ordering "specialized" motion screws, couplings and so on via the "A" store, but some of what's arrived - particularly sliding rails - has been pure garbage, and I've sent it back. In some applications, I've used the "drawer slide" dodge, although sometimes I wait until Princess has it on sale half price. For some applications it works fine, and it's a lot more robust, less flexible, and less expensive. Anyhow, I appreciate your thoughts on making stuff using commonly available parts. Many thanks.
@MrGuy19424 жыл бұрын
The threaded rod you bought from one of the box stores was probably from China. My experience has been that products from China are not the best of quality. When I was younger, I worked in the mining industry. We used ready-rod for pulling huge pins from tight bosses. I’m talking about 30 ton hydraulic ram on a 1 inch coarse thread rod. It may have stretched but it never failed. In those circumstances it was a one time use item. We would scrap it after that. Canadian made ready-rod maybe more expensive, but it would have not failed.
@davehorn83453 жыл бұрын
If you discard the factory nut idea, and go with say using a piece of 1" steel, where you drill and tap it, your results will be a lot better. You have less backlash, and "wiggle". It gives you more thread contact, and transfers more force.
@bobheatwole8044 жыл бұрын
John, save yourself a lot of guessing and go with grade 8 threaded rod and nuts. They are rated at 33 rockwell on the "C" scale, that's fairly hard and wear resistant. For a comparison a hand file is around "48" on the "C" scale.
@AbouzarKaboudian4 жыл бұрын
From a mechanical standpoint, by hammering it, you would concentrate the force to a smaller area that the thread is engaged, subsequently increasing the stresses on the engaged area, and hence increasing the chance of it stripping it. On the other hand, if you have two nuts glued or welded together to bear the forces, you half the load on each thread and significantly decrease the chance of stripping the threads. You would be still using the non-specialty parts, but tackling it scientifically using regular hardware store parts.
@msms-rl6zf4 жыл бұрын
An inexpensive source of acme screws is an old scissor jack! FWIW I bought mine for $2.00 US at a yard sale. Really needed it as a jack but could have removed parts too. Good luck.
@WoodUCreate4 жыл бұрын
Exercise barbell rods use acme threads and they're quite easily available. Finding a nut you'd need might be a bit more of a challenge and the size of the rod is rather large. There are plans out there using barbell rods for Moxon vises and they seem like a good choice.
@WigWagWorkshop4 жыл бұрын
With every video, I learn a little something new
@edmcgugan20793 жыл бұрын
National Oval thread. Similar to National Fine (NF) or National Coarse (NC) thread. Most useful when you are trying to aggravate one of your co-workers :)
@Dingbat2174 жыл бұрын
Maybe I'm overthinking it but if you use a couple of nuts backed up together you would need to make sure that they are the exact right distance from each other so that both sets of threads engage with the rod at the same time or you will just wear one out and the the other as it have not seen any real load until the first one wore out. If you use the coupler nuts, the right type as you mentioned, then the threads are always engaging at the same time as it's the same thread all the way through so I think that will last a lot longer than a couple of nuts or three as they may not line up the inner threads to the exact same pitch if that made sense?
@MrBonners4 жыл бұрын
If you want a lot of thread per inch , like fine indexing part on a jig, on a moderate size shaft. Lamp threaded steel tube out to 3ft is common in home depot etc. inexpensive
@Clinueee3 жыл бұрын
You compare it to the router lift but as far as I can tell the table saw height adjustment isn't locked like the router lift. The router lift has external clamp which takes the load off the threaded rod.
@Venge944 жыл бұрын
All fantastic points! I wonder recon threading your own nut would be better as you get full cut threads instead of those flats on the inside of the nut, im not sure how the rod interfaces on the inside of the saw but if it was possible you could enclose the rod then then drill an oiling hole through the nut?
@gotyaa85274 жыл бұрын
Hi A good source for heavy duty threaded bar is your local scrap yard car jacks although they seem to be a lot shorter now. so try to get one from a 50s 60s or 70s model.
@stevewalker78224 жыл бұрын
I hear what you’re saying, but couldn’t you make your own tapped but from stock metal, that way maybe the threads would be better
@thatellipsisguy89844 жыл бұрын
It takes a brave man to let it all hang out about how variable his nuts are... mine is definitely flatter on the tip than others I have seen.