Это видео недоступно.
Сожалеем об этом.
Low Profile Clamps (Inspired by Clickspring)
HTML-код
- Опубликовано: 21 янв 2023
- These clamps are of the Mitee Bite style and are easy to make DIY style from steel bar stock. In this episode I make all of the steel parts. There are five different styles of clamps and stops.
Also, thanks to Quinn Dunki at Blondihacks for supplying one of her stickers and also a big thanks to Alan Lockwood for lending his voice for the Blondihacks gag!
You can check out Quinn's Blondihacks channel here www.youtube.com/@Blondihacks/...
Yay! So glad the sticker made it to the underside of the globe. Looking forward to this clamp project, Preso! I love your approach to things.
Thanks Quinn. You can never have enough clamps!
Regards,
Mark
Yay! I hadn't even gotten to the prompt at 0:18 when I figured I knew (as soon as I saw the circle, I thought I knew), and then I was going to scroll down and present my hypothesis plus my journey of checking whether the clues matched it, but... then I saw this comment, and now I don't have any need for that. Cool! :)
Wait, is there a prize or something? *continues the video* ;)
0:27/0:31 - I'm dying, here. 🤣😂🤣😹
I, like that owl, can sit perfectly still for hours on end. Especially while planning my next project. Some times my wife checks to see if I’m still breathing.
There is a sub-species of Tawny Frogmouths (Podargus strigoides) that are relatively easy to find and its because of their ability to sit still for hours on end and go unnoticed by blending in with their environment. The one in your video is the common variety Podargus strigoides. Around Canberra you can find the Podargus publicservantus also known as the common public servant. A species known to fly in, land at their desk, not move for 8 hours and then fly away before anyone notices they were even there.
Ha ha! I once heard a joke told to me by a friend who worked for the Department of Mapping and Survey back in the 80's. Why doesn't a public servant look into their lunch box in the morning? So they'll have something to do in the afternoon!
Regards,
Mark
@@Preso58 Where roughly in Queensland are you? I got trapped in Brisbane at the start of the pandemic and been meaning to find a way to visit if possible before I eventually head back south.
I'd love to talk to you about how we teach a new generation of machinists and tradies. I work in industrial control systems first in manufacturing and more recently in mining. Over the past 25+ years I've watched the slow death of our skill base. We've had shortages electricians, welders, machinists, tool makers, instrument fitters,... for over a decade.
We aren't alone. I heard recently that in America they are so desperate for welders that just doing the 6 month basic welding course earns more money than the average college graduate with a degree.
Now that people are saying Australia needs a new generation of skilled tradesmen I have a question. *WHO'S GOING TO TEACH THEM?* Because when we shut down vast chunks of our trade teaching systems like the Victorian tech schools and the army/navy/air force apprenticeship programs we didn't just stop training tradies we stopped teaching the next generation of teachers.
I suspect we (as a nation) might be in a lot of trouble. I'd at least love to know your thoughts on this.
Privatisation of the Tertiary system in Australia was the beginning-of-the-end IMHO.
I have a mate in Newcastle TAFE system. Most of their students are being sent to them by Employers whose ‘Private Provider’ trained apprentices aren’t safe, & can’t do the basics.
😳
Regards
Robert
@@RobertBrown-lf8yq I absolutely agree.
I actually have my Cert IV in Training and Assessment. The VET system is actually well thought out and can be great *BUT* its also wide open to abuse.
I started to look into economics a couple of years ago because I got tired of clowns with economics degrees interfering in projects. One of the horrible outcomes of Milton Freidman's Reaganomics, Thatcherism and neoliberalism is the insanity that nothing else matters but profit. That might be good for a purely commercial enterprise like a hedge fund BUT the first priority of an education system SHOULD BE EDUCATION. Just like the first priority of a health care system should be health care.
This is where the economists are completely out of control and it shows up all across our societies.
I can explain in detail how the privatisation of state owned energy assets has directly lead to the world's current energy crisis. And we haven't even begun to suffer where that's headed.
@@tonywilson4713
Yep….
Enron= AGL
🤬
Great video. As always. Anyway, I can find myself looking at your drawings. I need to make a set for my rotary table.
Thanks !
Love the Aussie ornithology at the end!
I love your manual surface grinder! I have one too!!! Great project-- one cannot have too many toe clamps! Love the wildlife and the nice green vegetation. It's cold and brown here in Texas!
I upgraded my manual surface grinder with a section of marble countertop and a can of water.
Good Show Mate: Making chips. Always a satisfying thing. If you can use the part after you get through, what a bonus. Looks are important. My wife says she keeps me around for decoration. I'm pretty sure this is a promotion.
Great project video Mark. A shop can never have to many clamps or too many different types of clamps. I will certainly be following this one. I love the Owl. I first thought it was a Lizard or a Frog. It is definitely the master of disguise. Thanks for bringing us along. You are a great teacher. We need more Work Life courses in our schools today and always.
I have been reminded that the tawny frogmouth is actually related to the nightjar. They are not really a true owl but I was so excited to see one during the day that my brain disconnected from my mouth. They have beautiful big eyes!
Regards,
Mark
@@Preso58 Thanks Mark as you know by now I love nature. I have 3 trail cameras on my property. Over 6000 pictures in less than a year. Everything from beautiful Cardinals to Deer. With some Coyotes and Raccoons thrown in the middle eating the apples I left for the Deer. I put feed out for them every day weather permitting. I also have a homemade bird feeder on my windowsill so I can watch You Tube and look at the birds on my windowsill. Next month is our coldest month and then it is downhill to spring. YAY !
Lovely! It brings me joy just to see you post another video...
Those clamps are really nice. And thanks for the look at the visiting owl. Strangely I really enjoy both topics 👍😎👍
Great job on the clamps.
Very nice work again Preso, it is nice to see the warm sunny'ness from my vantage point anyhow, cheers!
Love it Mark! Going to have to make some of these for my shop! Cheers
Been following Quinn for a few years now.
She is interesting, and a MUCH better
machinist than I am! (And, better looking.)
(Thanks Steve, for setting that bar so high!)
steve
Nice project Mark, looking great.
Hi Mark. Great video, and perfect timing! A couple of days ago I ordered a block of aluminium to machine my own fixture plate, think I'll be adding a few of these clamps to the build.
Hi Mark. An excellent demonstration of why a fixture plate is so useful when dealing with tricky hold downs. A lovely little project, so very well explained and executed. Thank you. 👏👏👍😀
Mark I know you like to use parkerized finish. I do to and I’ve been doing it for many many years. I believe I am still using my original solution. I store it in a plastic gallon jug. I just dump it into a stainless vessel, heat it almost to a boil, dump the parts in after spraying them with acetone. Let them sit for awhile, fish them out and put them in a plastic pail of cold water. After toweling them off I spray them with WD-40, let them sit again, and towel off the excess WD. The reason I tell you all this is I know you measure temperature and are very methodical about it, but you don’t have to be exact with any part of the process other than making sure your items are degreased thoroughly. You could even let the solution stay in the vessel you heat it in. I’d be doing that but I do not have the room. In that way you would not have to wait until “Parkerizing day”. Parkerizing is the most forgiving metal finish out there. Everything comes out exactly the same every time no matter how careless you are. It is extremely durable as you well know.
Thanks for that. I had often wondered about the long series of steps which are listed in the Jane Kits book. I have seen a few gunsmiths using the more streamlined approach that you are describing and it obviously works. The step where the parts are dumped into boiling clean water is probably just to preheat them so the cold parts don't lower the temperature of the parkerising solution and the temperature of the bath as specified is so close to boiling (about 97C) that it probably doesn't matter if you go to a full boil. It is true that setting up all the heated solutions and containers is a bit of a pain but it's totally worth it to have parts that look nice and don't need any maintenance. I have tried cold blue solutions and they don't work for me. They tend to look good for about a day or two but they soon rust or the coating simply rubs off.
Regards,
Mark
@@Preso58 It is my understanding that cold bluing was developed as a touch up for hot bluing on firearms, but even hot caustic bluing has to be maintained to a certain degree, and it wears on high points as evidenced by gun barrel muzzles and cylinders. Parkerizing was used almost exclusively on U.S. manufactured firearms during WWII primarily because it was a fast process and less skilled workers could be employed to do it because of its simplicity. A Parkerized surface has an almost uncanny ability to hold an unseen oil film, which is an extremely desirable property in a machine shop environment where water solvable oils, handling, and etc. abound. I also appreciate its ability to hide light machining marks without resorting to sandblasting. In my opinion it produces a presentable professional product.
Best Wishes,
Dan
I should add that I am talking about zinc phosphate solutions not manganese. I have zero experience with the latter.
Mark. I was parkerizing some items today and quite by accident discovered this. I thought of you and your interest in this process. Parkerizing as you know leaves and even grey color which is quite durable. I remembered years ago when I bought my concentrated solution from Brownells a gunsmithing supply house in Montezuma Iowa that they also sold an additive to turn parkerizing from grey to black. I did not buy it however. Today I had a small item that I had just finished parkerizing and began to wonder, What if I drew off a small sample of the parkerizing solution and added just a few drops of cold blue from the same supply house, reheating it in a soup can. Sure enough it turned the item black yet it still seems to retain the durability of the original parkerizing! So don’t throw out your cold blue. Now I’m wondering if that is the additive they sell……simply cold blue in a different bottle!
I enjoyed the whole video. The Tawny frogmouth was amazing.
Yes, everybody knows her. And Clickspring too :)
I admire your eye for detail. When it's good enough for most people, you continue to give it an even better finish.
Thanks Michel. My poor fingers are still sore from rubbing those sharp edged lumps back and forward over my "surface grinder".
Regards,
Mark
Proper job, Mark.
Great project and great vid.
Great channel Mark!
Just cause I love being a pedant Preso, Tawny Frogmouths are not owls they're are frogmouths, closest relation are nightjars or oilbirds, they're fascinating birds and I used to love watching them pick off big moths that hovered around the outside light at night. PS. love the clamps and they don't even look like a Tardis.
Yes, you are absolutely correct. As the word "owl" came out of my mouth I knew I was incorrect. However, by the time I realised my error the damn thing had flown away. I am fairly sure we have a couple of powerful owls living nearby. I hear them sometimes but we have never seen them.
Regards,
Mark
27:39 always enjoying your extra time and lovely animal bonus shots at the end of the video, Mark❤️👍🏻 Thanks Ulf
Thanks. It's nice to know that people appreciate the wildlife bonus clips. I spotted a kangaroo with a very small joey in it's pouch the other day but I didn't have my camera handy. I am hoping it will show up again soon.
Regards,
Mark
@@Preso58 Kangaroos welcome 🥰👍🏻have a nice weekend, Mark.
That owl was beautiful
Puerly for practical reasons SURE I BELIEVE YOU.
Nice work again Mark, these will be handy in the shop. It looks like we both have the same model of surface grinder, the 'Air cooled Manual 69'.
Yes, I know. Sad isn't it?
Regards,
Mark
Nice project. A very good idea to print the drawings and place the completed parts with the relevant drawing. As you said, it would be too difficult to keep track of the parts without such an aid.
I loved the owl footage.
I like the Mitee Bite clamp design, but even though I am in the US, I consider the products to be expensive. I may have to make a few for my shop.
Dave.
Thanks Dave. I am a very visual person and having the drawing makes more sense to me than having a spreadsheet or a list of numbers. I mis spoke when I called that bird an owl. It is actually related to the Nightjar family. They are quite common but they seem rare because they can be so hard to spot.
Regards,
Mark
Nice!
Awesome
Cool looking owl. Looks like he's trying to seem he knows better but I've seen ptarmigan try to hide in plain view, too. At least he didn't try to attack you like the grouse here.
The Frogmouth is pretty chill really. We had two of them in our chicken run and we were able to remove them without them putting up a fight. I actually forgot that they are not really a true owl. They are related to the Nightjar family.
Regards,
Mark
nice work, thanks for share
I can sense a surface grinder rebuild coming 😁Nice job Mark they will be very handy.
I am actively looking for a suitable candidate!
Regards,
Mark
Great vid Preso.
You need a nightly show on the telly, once in a a while on utube ain't enuff.
Cheers mate!
Regards,
Duck
I have had a slab of aluminum for 4 years waiting to become a pallet. My thing was imperial or metric, priced the hard wear and metric it is. Thanks for sharing.
The bolt heads tend to chew up slots in mild steel. Save them with soft sacrificial washers, or better yet, hardened washers which will make snugging them down easier and more consistent.
OMG! More parts to make 😁 I did find some steel today for the hardened finger/jaw. It was already hardened but I was able to anneal it in my foundry furnace. There will be some scraps left over that would make nice square washers. Could become a thing!
Regards,
Mark
Nice to see Quinn on the board, I know she is a big fan👍
Also good that you got the frogmouth on vid, they are so bloody hard to see normally.🍺
Thanks Bill. I was able to get quite close to the Frogmouth but he was totally aware that I was there. I love their big eyes!
Regards,
Mark
Amazing clamps so was that owl :D
That owl is a rather interesting looking creature.
They are! I only saw it because it was sitting directly on top of the fence post but if they are in a tree they can be very difficult to spot.
Regards,
Mark
Gday Preso, this will be a very handy clamp set to have, I think you should shout yourself a surface grinder, it’s gotta be your birthday next week, great job mate, cheers
Don't worry, I have been checking the used machinery dealers for a suitable candidate. A surface grinder and a shaper would be "nice to have".
Regards,
Mark
@@Preso58 I’m toying with the idea of selling the Douglas shaper, I haven’t used it in over 12 months now
First time viewer. superb stuff!
Welcome aboard!
Regards,
Mark
I love my Chinese copycat hex mitybite style clamps…you can fixture almost anything!
I am keen to have a go at the hex style clamps but brass of that size is not cheap. I have a bar of rectangular brass bar stock which came out of a dismantled surgical operating table of all things. I am using some steel from the same apparatus to make the hardened jaws. I cut it up today and annealed it in my foundry furnace. It's now nice and soft and I can harden it again later.
Regards,
Mark
What a coincidence, I have exactly the same surface grinder!
Hi Mark, veryinteresting project: i have to make some new clamps for my milling table so your inspired clamps will be an inspiration for mine! curious to know about that table with many holes (Alluminum ?) the first part of the holes are not screw and after yes? I ask because i saw some pins, cylindrical, and so i don't know if all the holes was screw, it seems cylindrical first and after screw !! Thanks Mark, see you soon, Alberto
Alberto, all the holes are reamed 8mm for half the thickness of the plate and the lower half is threaded for M8 screws. That means I can put a dowel or a screw in every hole. I made another fixture plate for the Sieg but it has every second hole tapped for M6 and every other hole reamed 8mm. It means that the threaded holes are further apart. The only down side to having all the holes reamed is that you need longer threaded fasteners.
Regards,
Mark
@@Preso58 Thank you Mark!!
THANKS PREZ, I LOVE TO SHOW MY WIFE YOUR GARDEN, SHE LOVES THE BIRDS
Thanks. We are very lucky to have such a wide variety of birds which visit regularly. Unfortunately, there is a species called the noisy mynah which gang up on the smaller birds and bully them incessantly. They are a native bird but they tend to dominate the other species if they have enough open space. My wife is currently planting out a large portion of our land with cover plant species to give the smaller birds somewhere to hide. When we first moved here there were lots of tiny native wrens but due to development their habitat has shrunk. We have planted over 2500 small shrubs and grasses but it's going to take a few more years for them to provide the cover that is needed. It would be nice to get the little birds back again.
Regards,
Mark
Wow , thanks Mark
Frog mouth owl cool!
I have been reminded that the Tawny Frogmouth is not a true owl. They are related to the Nightjar family of hunting birds. They have lovely large eyes though and when they are sitting in a tree (not on a fence post) they can be almost impossible to spot.
Regards,
Mark
I enjoyed the video. I expected that the hold down screw for the angled face would be perpendicular to the bottom not perpendicular to the angle. It seems pulling down squarely on the angle would not induce a sliding movement. However if it works it works. EDIT. I just watched part 2 and the penny dropped that the screws have eccentric heads to do the clamping. So forget that.
Thanks. I guess I didn't make it clear in the first video. The only issue with the eccentric headed screw is that it doesn't necessarily bottom out in the counterbore. So it would be possible that the clamping jaw is just applying side pressure with some downward holding force. It is really relying on friction to stop it moving upwards.
Regards,
Mark
Mitebite clamps are available from Dimac in Melbourne. Their website is worth a look because they have some lovely clamping solutions.
Barry, thanks for that. I just checked out their website. It seems all the good stuff is in Melbourne.
Regards,
Mark
@@Preso58
Not all the good stuff is in Melbourne, look at Romheld and Livetools. Most of this gear is out of the price range of the hobbie machinist, but you can get some good ideas. Just a disclaimer I know the guy who owns Dimac.
Regards,
Barry
For me as a hobbyist I'd rather have unhardened clamps as well for the inevitable time(s) I end up cutting into the clamps by accident so I don't damage the cutter.
That is certainly a benefit for us Non Renzetti folk!
Regards,
Mark
Great and useful project! I wonder if you could have made the slot drill cut first, to avoid the interrupted cut (I seem to always have some sort of remark - can't keep my big mouth shut, sorry).
Love your back garden and the variety of wild birds - very pleasant.
Jose, plunge cutting with big slot drills is still a bit scary for me anyway. The smaller 8mm carbide end mill is a bit easier to plunge straight through. I knew that once I got most of the metal removed from the smaller slot the bigger counterbore would be a bit easier but you are correct that the finish in the floor of the counterbore would be a lot better if I had done it the other way around.
Regards,
Mark
@@Preso58 Thanks for the reply. Having in mind your large experience, I knew you had a reason for it. I just couldn't figure it out 🙂
Quin Dunke aka Blonde Hacks
First clue.
Hi, I love your videos, could you send me the technical drawing of these tools? I really wanted to make it for myself
I think I still have the 2D drawings. They may not be very neat but I only made them for my own use as working drawings in the workshop. However you can get a PDF copy here www.dropbox.com/scl/fi/vwtqjvhbu7d2pxt0ynr4x/Mitee-Bite-Clamps.pdf?rlkey=89ydm3izhvs0p8kvbsv79g01k&dl=0
Mark I would suggest you do not place too much faith in the ultimate holding power of any free base clamp or vise. Keep the machining forces low. Don't ask me how I know :) Personally I like rebated hard jaws for the vise. A good intro project should you ever get the surface grinder.
Thanks. When Clickspring was demonstrating the clamps he had made he mentioned that you need to be realistic in your expectations with the holding power of this style of clamp. I made up some hard steel clamping jaws today and they bite into softer materials quite well but the brass jaws aren't going to win any prizes for holding power. I guess it will take some time to get used to what they are good for.
Regards,
Mark
Very interesting, did you make your machinists jack at Yeronga TSFE by any chance?
No, one of them was made at Mt. Gravatt CAE as a first year machining project (1975) and I made a series of smaller ones just a few years ago. They were all parkerised to stop them going rusty. I am pretty sure every TAFE fitter and turner student would have made the same job.
Regards,
Mark
@@Preso58 Thanks, first year sparkies made them at Yeronga 1980 for mine.
Actually (pushes glasses up the bridge of his nose with his index finger), Tawny Frogmouths are not owls. They are more closely related to Nightjars.
Owl, schmowl! But yes, you are absolutely correct. As the word "owl" came out of my mouth I knew it was incorrect. I just couldn't think of the correct name and later on when I realised my mistake, the bird had flown.
Regards,
Mark
Mark,can you tell me just how you got around the 3 phase to your shed,, I have the same problem at home, 240V 20 amp, in the garage,,,,and $10 large ones to get 420V on in the garage. Regards Frank
Frank, I don't have three phase power to my shed. I use a rotary phase converter for my Bridgeport mill and I have VFD's on my lathe, my small CNC mill, my drill press and a Woodfast 400 bandsaw. Unfortunately, we took the decision to run our power underground when we moved to our property in the mid 90's and we used a very light single phase cable to complete the connection. It was a bad decision but it was all we could afford at the time. To dig the cable up and put in three phase conductors would mean digging up our road and lots of concrete. I have recently started using Bosch Rexroth VFD's. They are almost as cheap as the Chinese VFD's but considerably better made and the manuals are written in legible English. They boot up quickly, they are quiet and have all digital inputs.
Regards,
Mark
Show us how to use the clamps when you are making the knurling tool.
That's the plan!
Regards,
Mark
I'd take the clamps I used to make at J&S over those. Look up J&S Tool downholding clamp. They're clever stuff. Ours were decidedly not machinable though. We hardened them.
I just looked them up and they are very nice. I am guessing very pricey too and almost certainly unavailable out here in the colonies. Us poor Aussies have to take what we can get! 😢
Regards,
Mark
@@Preso58 they're not that hard to make really. You do have to make them in pairs though. That's how you get the half threads. You put a pair together and tap them both at the same time. You also get two when you cut the angle too. We did that on this crazy bandsaw that had a huge table and the saw power fed across the table. I've never seen another machine quite like that one. The broach we used to cut the dovetails was nuts too but you could mill those. We cut those dovetails in one pass. The cutter plate was 6 feet tall.
Mark, I installed touch DRO on my mill just before you featured it. I noticed your display is quite different then what I have. Can you let me know the version and source for yours. My Samsung “claims” the latest app is from 2014. So far I have not found a later update.
I am using the Beta version of TouchDRO. Yuriy asked me to do some testing on the release candidate a while ago. There are still a few bugs but he is working through them and the new version should roll out shortly. I just checked Google Play on the PC and the latest available version is August 13 2016 but on my phone it shows the beta test version which was updated on January 12 2023. Maybe you could get in touch with Yuriy and ask if you can join the beta testing programme?
Regards,
Mark
@@Preso58 thanks Mark … I think I will wait for yuriy’s update, and look in to why my tablet is not properly updating …
Hi I am a 73 year old newbie could I make the parts with out icing coolant?
Yes. Some cutting oil applied with a brush will help to prolong the life of your tools though. I use a product called "Tap Magic". You can also use a spray bottle filled with a water soluble oil and just squirt a stream of the coolant on the workpiece every now and then.
Regards,
Mark
@@Preso58 thanks I really get a lot out of your videos
I beg to disagree. I plan to make one of the Hemmingway knurling tools at some point and the more videos I can watch on building it and the more variations of method and technique I can see that may correspond to the tools and facilities I have the better.
Fair enough!
I heard the Jaws music in my head when I saw that half finished knurling tool on the bench at 3:56. So relieved you are bypassing a build video for it. I'm getting to the point of being very insensitive about them.
I was given the drawings for that tool by John Creasey last year and I kept promising him that I would make a start on it. Almost to the day that I picked up the first bit of steel to get going on it, Clough42 released the first episode of his build. It's actually a bit of a relief to just make some parts without having to talk to the camera all the time.
Regards,
Mark
Dunki not Dunkee.
Thanks Mark. I have just edited the description. Another senior moment I'm afraid.
Regards,
Mark
I’ve got a few of Blondihacks stickers as well as some of yours and many others. I proudly display all of the stickers, that I have received, on my tool boxes. Great project awesome, video as always. I really need to make a few of these clamps.
Thanks Tracey. Yes, the whole sticker thing is a lot of fun and it's nice to see the variety of stickers out there. It's a great visual reminder of the RUclips community in action.
Regards,
Mark
Quinn Dunkee is cool
Hello Mark,
I'm in need of some advice/help regarding a Model Aeroplane Engine project .
I have sent you a FB friend request & message. Hope you don't mind me reaching out.
Thx
Mark
Mark, I just found your FB friend request and accepted it. I must say though, I am not really an expert on model aircraft engines but I am happy to help if I can.
Regards,
Mark
@@Preso58
Thank you for reaching out.
It's more about gear & processes.
Is it ok to chat with you over Messenger ?