Machining Custom Bushings for an Excavator - Manual Machinist
2022 ж. 1 Қыр.
42 446 Рет қаралды
This job is part 2 of a replacement jib end on an excavator. The customer supplied the material for these bushings, so I have to use it. Watch as I make quick and easy work of these large bushing.
Topper Machine LLC is an entirely manual machine shop located in Spooner, WI. Our videos will highlight some of our shop work as well as the sawmill we built in the shop and our A.D. Baker steam engine, and others we work on.
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Thank you for your videos. It reminds me of my dad when he did this. I used to play in the shavings all the time.
Been a machinist for close to 30 ,yrs and i still watch how others do parts their way and always come away with appreciation for their work.
You've proved the maxim that videoing what you do makes the job three times longer.
It's a lot of work doing the videos, but it's worth it. We enjoy it!
I certainly do understand and appreciate the time and energy commitment you invest in these videos. I learn something new every episode. Thank you 🙏
We DO appreciate it a ton! Thank you for the tremendous effort, it's time well spent.
Just finished watching Curt from CEE here in Australia and your upload is here as well, good timing.
CEE do good work, but i stopped watching due to excessive swearing and blasphemy .
@@mfc4591 then don't watch the outtakes. Otherwise they're clean and much better now than two years ago.
Bushing design has a lot of variations in materials, often choosing dissimilar materials for the bushings and pins. I've seen bushings ment to be the hardened material and also the wear material. I've seen bushings made out of bronze, white bronze, cast iron, plastic, composites, nickle, hardened steel, etc ... that being said, good to give your customer what they want.
Considering what you said about the material used it seems possible that you will be doing this job again before too long. It is important to consider whether you can afford to make a video, depending upon the time you have to do the job and how long setting up the video work will take. We understand the effort it takes and are grateful for what you share with us. Kurtis has Karen to do the video work and they can still only do one video per week. Do what you can and if it becomes stress you should cut back a bit. We learn from every tidbit you share. Thanks, and have a peaceful and restful weekend.
Keep your hand ✋ out of the running machine Thanks for the video. Yours truly, Lefty.
Looks great Josh! 👍👍 We definitely appreciate you filming these jobs for us even though it doubles or triples your work time, so thank you!
I really like the shot looking down the bore. I don't remember seeing a spiral oil groove before. Another job done right the first time. 😀
I was only a laser operator, button pusher. I appreciate your skill. Your work requires more precision than my sheet metal job. It is to bad that the customer did not give you the right grade of steel. I am glad that you enjoy your work and that you are able to provide a valuable service. 😃😃😃😃😎😎
Primo camera work showing the boring process. Possibly unique amongst the YT machining contributors Well done
The Lighting looks so much better. Its very easy to see things now, really enjoy your video work and explanations cheers.
Great video, love to see real world applications, becoming one of my favorite channels, thank you
Bushings are meant to take the wear. That's what they are for: a maintenence item.
Thank you for sharing all your knowledge and tips with the type of work you do. I am a small 2 man shop that we do alot of short run parts / die work/ and prototype work and we don't have the latest and greatest equipment, but we can get the jobs done accurately for our customers with CNC's and manual machines. It's nice to see that you show the skill level and discipline to make the stuff you do. Keep up the good work!
Thanks
this video is just as good as it was last year......cheers Josh, Paul in Orlando....
I dont often like videos, but I always do for yours. Thanks for making the videos, definitely enjoy the content.
Love your content, Love your chill attitude, and great demeaner....... Hate the screeeeching at the beginning of each vid !!!
It is appreciated, I'm glad your channel is growing. This was something I've made a bunch of also and 1020 Dom pipe is way lighter then i like too. Have a great Labor Day holiday Josh! Brian
Thanks for the videos! I lean a LOT from them.I do enjoy slipping to the shop and turning once in a while just to make farm parts or for a hobby. Nothing in particulate, just make some chips! !
Thanks for the video!!!!!!
Thanks for the videos and the time it takes in conjunction with your actual work
The will of the customer is his will, even if he is wrong. You can advise the customer, but you cannot force him to do anything! He gets what he wants.
I remember back when we would get jobs in the shop. Customer would supply their materials. It was always "drill collar" stock. That was 4145H hardness generally in the upper 30 Rockwell C Range. Oh yeah, nice, and tough! It did machine nice and hold tolerances most of the time. Hard on the machines, too! Thanks for sharing, Ken.
Smooth operation. Have a great weekend
Great video Josh, thanks for your time...
Great video and I enjoyed watching the process, thanks. If we are struggling to focus on something we do stop videoing and get the job done as the priority. It must be tempting to make some better bushing now and store them on the shelf for when the customer comes back
keep up the great work
Nice video. Interesting view through the spindle !
Thanks for sharing
I am only a hobby machinist, (been at it for 40 years), once I start, I would not have the patience to film. Probably forget where I am up to anyway.. Do enjoy the vids... Good onya
Wow excellent work sir
I never lock the top bearing because of heat expansion , it gets too hot, and burns out the bearings faster
Nice video, I miss the trade. We would usually take the bore mic and measure across it with a regular OD mic just to be safe. I have not before seen the handle for those ID mic tho, Ill have to look into that for myself. It also Sounds like the customer will need to be returning again soon for new bushings, Hardened steel or the correct grade alum bronze is a must IMO.
Great video!
Thanks!
Good stuff
Good job
Factory bushes are 35 to 45 Rockwell ,Dom tube is way softer as you saidthe customer isn't saving money when it wears out quickly.
Hey the customer gets what they want!
Well done on the video part, you getting and better at it. Txs for sharing. I turned two bushes myself this week, only the size was a tad different: 2 mm (78.7 thou) ID and 2.35 (92.5 thou) OD, which leaves a wall thickness of 6.9 thou 😁. And I got it right, first time!
Grasias por compartir exelente
Inside micrometers are great but if you want true precision you need a bore micrometer but it would be overkill for that type of job.
Hi Josh. Thank you once again for a interesting video. I do appreciate the time you take to do these! Just a question...when parting off, do you manual feed or auto feed? I tried auto but it always seems to hog in. Thanks again. Woody.
With a thin and soft bushing, to you worry about compression when they are fitted? Slight change of the inner bore.
There is an India Indian fellow that does some amazing things with a lathe. Milling machine type work with shop made tooling. If I see it again he made an oscillating back and forth type of oil/grease groove cutter that I’ll try and remember to tag your KZhead channel in his comments.
Someone's added his URL for that project further up the comments. That was some homemade contraption but it worked well.
Great little job. How many TPI did you set for doing the grease groove?
An old lineshaft driven oil grooving lathe turned up fairly recently not too far from me in Oldham.... It was made in the early 1900s and had a bull gear like a shaper that you could alter the stroke with... I should've grabbed it actually... 🇬🇧😐
I have been watching for an oil groover. Seen a few, but nothing reasonable
@@TopperMachineLLC This one was made in Manchester somewhere......all my stuff is the old lineshaft driven stuff... I've loads of it Josh.. 🇬🇧😐
You should have but a grove 1/4 inch on each in then then thread it . The Grease on is going to follow those threads out
Not what the customer wanted. I do some that way, and some all the way though. Depends on what they want.
What material would you have preferred for the bushing?
What would be a good material 4140? Good video. Thanks
I’m wondering if you do that boring operation without the coolant on. The inside, if you cool it from the outside to help chill the material and prevent that “oops I overcut” due to heat. I’ve played around with a spritz bottle and coolant when I was doing manual work, but never a full flood due to the layout of the machine and lack of pump. Just a thought. It looks like your thru-spindle bore doesn’t have a coolant catchment on the back end where you’d load a bar, might be worth it? Our older tool holders have a through coolant attachment that you put a nipple on the back end and run your flood to it. Works pretty well if you have something to keep the coolant from shooting out the other end and all over the shop 😂
👌👌🤘🤘
Hi , im from Canada and what you are doing is very appreciate and that help people like me to learn more from experience person. Thank you. Did you change your gear on your lathe machine do to a grease groove like that ? I try on my and don’t matter how fast my traveling tool,i can’t do it
Yes. It is actually a very course thread.
Thank you, im working on it ! I try to find what is the best gear set up for my lathe . My work is around line boring and I need to machine my own bushing sometimes . Thank you to answer me so fast . I very appreciate
Can you share with me your setting?
@@lucouellet6771 it was 1 thread per inch. Set it up like your threading, but pick a course thread.
Ok ,Thank you so much!
Those turned out really nice. It's been 3 months or so--any feedback on how that bushing material is holding up?
No news is good news.
Josh what material would you recommend to make the bushings out of?
4140 at least. Done some in 8620 and T1. But 4140 is available in tubing for railroad brake rigging bushings.
Great job Josh thanks for sharing! QUESTION! Where did you get that shirt? The Johnson saw shirt? I have an old Johnson saw I want one of those shirts! Could you give me a link possibly or website? Thanks.
The link is on my about page. Just look for the merchandise link. It's storefrontier.
What alloy should have been used?
I wanted to get your opinion. Im trying to decide weather to get a used Monarch lath or go buy new one from Eastern Europe?
I have both and love both.
@@TopperMachineLLC thankyou for answering back. If you could only have one to start with which one would you choose? Regards Le
Hi Josh, Everyone's expressed their views on your work/video sched so there's no point in me adding mine since I agree with them, mostly. One question regarding your grease grooves. Would it not be advantageous to "end " your thread say 1/8" from the outer end of the bushing (inside on the lathe) and allow the cutter to dwell and form a closed groove that would prevent the grease from migrating out of the end of the bushing. I realize there will probably be a seal at each end of the sleeve but this might prevent leakage too. Just a thought. Thanks for your efforts.
It all depends on what the application and Customer specifications. I make them both ways, just depends on the customer.
For safety . Use a wood stick to catch the part not your hand !!
Do they not sell standard size bushes in your parts ,makes NEXT TIME a lot easier ?
I can hardly get anything around here. Worse the last couple years.
I'm not questioning what you know, but rather questioning what I think I know. It's my understanding that bushings are meant to be soft and take the wear in order to take the wear in order to save the pin and the machine. Are you saying that it should have been a harder material that would still be softer than the pin and the machine?
Don't question your knowledge, you are correct in some applications. In my experience, on this kind of equipment you want both to be hard. Cat has the hardest pins and bushings I have ever seen. They last forever. It all depends on your application.
@@TopperMachineLLC thanks for the explanation. I appreciate your time.
At what point do you suggest to the customer that there is a better material, design, etc.?
Before I even start. He showed up with the materials and said make it out of this. I said that it would not he up. He said I bought the material so use this.
Doesn't a bush need to be done with a grinding wheel in the I.D?
No
Just call it (FREE ISSUE) material, as supplied by the customer. Then if it's junk a day later (you gave it me).
Won't this go egg shape once they weld it in?
We’ll the customer is always right until the materials they chose fail early :( Unless the excavator usage is minimal.
Regular DOM 🤣 some customers just won't listen, he'll be back very soon to complain that it wore out to quick
He first wanted to use pipe, which I was able to convince him was a really bad idea
@@TopperMachineLLC 🤦♂️ some people just have absolutely no idea.. I'd be wanting something at least 55c hardness, not cheese
What did he save buying DOM over the correct materials? $50 at most? That’s gunna bite him very soon.
Hey Josh, I just watched a video a couple days ago where a lathe operator made himself an attachment to make figure-8 oil grooves on the inside of bearings and bushings: kzhead.info/sun/bKmJlracbmt8g4U/bejne.html Every part of that thing (including both gears) was made on the lathe he is showing there. Maybe you would find something like that useful if you have to do oil grooves every often.
The customer is always right until he's wrong. You warned him, but he didn't listen, so the problems are on him.
That is the hard part. Then they come back and complain that it didn't last.
@@TopperMachineLLCYou can only hope they catch the problem with the soft bushings before the pin wears into the pivot and destroys all your work.
@@larrykeenan598 Job security!!! Lol
Exactly what I was going to say.
The music junked another video 👎👎👎👎👎💩💩😬
Oh no, someone doesn't know how to mute and turn on subtitles.
@@topduk don’t have to on good videos
Thanks for your machining content on the bushings I appreciate your time not chargeable outstanding content sir 💯👍🏻🫵🏻🇬🇧
Thanks!