The 26 Acre Maker Shop Part 1: Precision Ground Stones
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- เผยแพร่เมื่อ 16 ก.ค. 2024
- Before heading down to the Flywheelers we spent a few days at our good friends the Baltzley's, also known as the 26 Acre Maker Farm. Lance has been gaining a reputation the past few years for his precision ground stones he grinds and sells so while there he give me the controls to the surface grinder and he helped me grind three new sets of stones that will be for my new shop. We also got his new surface grinder setup and level and worked on a few other projects while there as well. Part 2 of this video will show us using his Cincinnati Milling machine and we also uncover a K&T No. 4 milling machines that just might end up being another machine acquisition for my own shop.
Check out the link below to order your precision ground stones.
www.26acremaker.com
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My Amazon store where I'm adding many of the tools and products I use in my own shop. Amazon.com/shop/abom79
Visit my second TH-cam channel where you can follow are travels, camping, RVing, cooking, and bbq! - วิทยาศาสตร์และเทคโนโลยี
Ahhh, a chuck key sticking out of a chuck ! (at 2:42)
I do like Lance. Fun to be with. And a great friend for Adam
Shop looks so much better since Lance has thinned out the equipment. Love his property there. Beautiful.
Thanks very much for sharing.
Seeing the picture of you and your Dad makes me smile every time. Keep up the good work!
Two wireless mike's really improves the quality of the video. Great job Adam and Lance.
Who's that Mike and how is he helping?
@@BloodyJMF Mike Rayfone puts alot of hard work and hours into these videos. The quality of his work is great
Man I’ve said this many times but lance could start a TH-cam and it’d explode the man is a massive wealth of machine rebuilding knowledge not to mention the vet knowledge and big business. Plus his personality seems easy to take and he would be able to teach in a manner allot of teachers these days just can’t simply because they don’t have the passion for it
He maybe doesn't like the limelight or doesn't have the time or patience to be recording and editing videos, I agree though, I'd watch his videos
I humbled by your comments Jeremy, Thank you for your kindness....
Love the friendship you guys display.
This video is very interesting to me because given the timeframe of when I ordered my 6" set and when I received them I'm pretty sure my set is somewhere in that stack of boxes.
Always love seeing you and Lance together doing things in the shop. Its such a treat.
I love seeing Lance! The precission in his work is just astounding! I have a weird facination to precission 🤣 but really, awesome work, as always!
The sound of two precision groud flat stones rubbing against each other is amazing.
Ran one of those ProtoTraks for several years in a tool room for machine maintenance. Simply awesome machines, very capable, easy to program on the fly.
Rob Renz is very sharp and knows a ton, among people who are no slouches themselves.
Thanks guys!
Really relaxing when you two get together!
Lance is an exceptionally generous person. In the early days of his creating the precision flat stones, I tried to buy a set, but he sent them to me for free. He didn't know me from Adam (pun intended), but gave them to me anyway. I really cherish the gift.
Its grate to see U and Lance. But next time please give one mic to him so we can hear him talking as good as we hearing you.
You can see him wearing one @6:10
He has a mic. LOL. You may need your ears checked.
you can learn a lot listening to you guys, no arrogance about learning or teaching or instruction. i really enjoy the content. glad i found you 2
Jesus loves you🐠🕸🐝🐟🐊🪲🦖🐆🦙🐎🐚🦜🦚🐄🐕🐖🐈⬛🐃🐈🦓🐂🕷🦗🦭
I love the visits you show with Lance. He knows stuff. That's what I'm here for.
Good afternoon from central Florida! Have a good one!
for all those wondering what these are for, they are called precision ground flat stones. they are used to grind flat a surface that had been machined very flat since machining sometimes leaves behind burrs. grinding it with these stones leaves it as close to perfect as you can get
Always nice to see Lance and the work he does in his shop. I've been wanting to get some precision stones from him for a while and I'll probably order some soon.
Once you start using stones (precision ground), you'll realize what you've been missing and won't want to continue without them. They're a must have for machinists but not only, they're a great tool even for metal fabricators or also woodworkers and hobbyists.
Passing them on the mill table every now and then makes a big difference and even stoning parts off the mill can give you a very nice finish if you don't have a surface grinder and will also improve precision in your parts.
Lance's precision ground stones are great. I bet I use them every third time I walk into the garage. Probably in my top 20 used tools.
About 15 years out of the machine shop jargon but still understand. Proud to say I still know every nut and bolt of a Hardinge Hlvh.
haven't watched the videos in a while, glad you're doing well Adam.
this was fascinating both the machining and the teaching aspect...
take it easy everyone, be nice, have fun
Always lots of fun to work in / see other folks' shops! Keep showing us that new shop progress! Thanks Adam. Loved those photos in the restaurant! Great family I'm sure.
It's always a treat when you go visit lance! Thanks for taking us along !
Norton Abrasives had a factory here in Brantford Ontario Canada for as long as I can remember and I'm 61
Nice to watch you learn something new, and stay humble - not everyone can. Always a pleasure watching your videos Mr Booth!
Thats a brilliant photo of abbie! Have fun
Thank you for documenting all of this knowledge!
Thanks for sharing Adam, great job by all of you. Love the precision work. Fred.
Thank you all!❤
Happy to have found you guys , watching for some time now .
Another channel to add to the list 26 Acer .
I found Rob Rense some yrs. ago , through some electrical test gear he custom made , too late to get in on the 10 he made ;(
My experience 1st 9th grade shop class [ do know of any place doing now ;( , then auto repair , next gunsmithing with shooting competition , no longer have space --- so you guys make me miss / but enjoy ;)
Thanks
You never stop learning! Something new every day!
Lance is the man!
I don't know I'm, I can only talk about his craft, and the love he puts in it is incredible
Great video, I have the same controller on my Bridgeport. Lance is really going to love it.
I've been waiting for this video!! It's a nice coincidence seeing as I just ordered a set of these last week or so, can't wait to receive them. Maybe mine were in that pile on the table :) lol. love seeing lances shop, and Adam's videos!
Thanks for sharing!
These flat stones are beautiful
Nice work, Adam. Great call on using the double Røde mics, awesome job. Thanks!
So, Adam, will a surface grinder be on your wish list for the new shop?
Thanks for the video🤗😎🤗😎
Lovely video
Yeah those prototrak bed Mills are really great machines
I understand from the comments, specifically @mazur under @Ian Furlong's comment, that these stones are used to, "flaten the high spots on the tables for a mill or any other flat metal surface." That being said, what is added to the stones' capacity as shown in this video?
Why are Norton ~ $25 stones cut in two, machined, and then sold for $230?
I am not a machinist, plead ignorance, but am here to listen, watch, and learn.
I always wondered the same thing 😂
Robin Renzetti has a good video describing them: th-cam.com/video/DVLXsq7pi9Y/w-d-xo.html
The short version is that the original stones aren't very flat, and the grit in them will scratch flat surfaces they're used on. After precision grinding they're very flat, and the grit won't scratch another flat surface they're used on. They'll only remove high spots, but because they're so flat when used on another flat surface they won't cut the main surface, and they therefore won't distort the shape.
You're paying for time on a surface grinder with a diamond wheel. If you have a surface grinder, it's cheaper to make your own, but *lots* of machinists don't have surface grinders, they're quite expensive. And anyone working to high precision (mostly toolmakers) needs a precision ground flat stone, and usually such people make good money and can afford a good precision-ground stone set.
They're also always made in pairs, so that they can be used against one another to even their surfaces out before use, thus cutting the Norton stones in half.
@@PeregrineBF A stone is a stone and has no AI implemented. How should he know what a "dip" is"?
@@raikbusse7697 derp
@@littlejackalo5326 Lern doch mal bitte wenigstens englisch.
I got my stones from Lance a couple years ago now I think ....... they've been great and are still in great condition
Nice to see you using a surface grinder
I love machining!
Great video, I appreciate the generous spirit. I did have a few notes that could be constructive though. It only takes a second with a squeege on the chuck, maybe that's why the extra time "sparking" out was needed because the stones would be flexing a bit if sitting on even the smallest piece of grit. I flip them twice because there's likely to be flex on the first side, and on the second flip it's just a fine cut, so both stones can be done at the same height setting and will be virtually matched in thickness too which could come in handy.. Grinding the sides square is nice too. I realize tuning new machines is a process and maybe you're aware of this but that chuck looks like it was ground with the wheel either out of round or out of balance... Rock on!
Right down the road from me (in Gainesville) looks like fun times
good job
Well Said!! Enjoyed!!Cheers!:-)!
If this is now a dedicated production machine, I'd put a second valve in series on the coolant. One is for adjustments and one for pure on/off.
Man I use a 12" level daily for my work. Leveling a TV on a wall with is easy, but these levels that exist for the accuracy you are trying to acheive are just crazy. I wonder how "off" I am with my level. Normally if a tv or a 3gang switch plate look level with the naked eye they are level, but if you put one of these precision levels on them they would be way off in the precision machinist world. thanks
Very interesting video, I never realized that there was sub industry to make sharpening stones even more true than the way they come from the factory?
The absolute precision never ceases to amaze me Adam. I do have a few question's though. 1-> "How often do you need to check the 'machines' for proper alignment?". 2-> "Do 'machines' come with a installed bubble level sensor, that can 'activate an alarm of sorts', if it goes out of a certain pre-set range?". The reason I ask, is because, I also have an OCD (LOL) watching the USGS earthquake map. For example if you're away on the Big Haul, and something happens back home, that you were not aware of. I can say for certain now, I'm over the worry of metal chips miss aliening things from watching Kurtis (CEEA)😅. It's really fascinating to watch you guys work. I caught this bug back in the day when NASA was repairing the Hubble Telescope, and the precision that took. Cheers, Blessings! ....ps: One final question, for something completely different that I do, "Do you treat any 'sliding' surfaces with graphite?" Because under a microscope, metal looks like the Rocky Mountains🤔🤫.
I honestly never thought I would finish the barn shop before Lance finished that 10EE but looks like I have a good chance of that happening! LMAO
Did you manage to get it buttoned up for this past winter?
@@Abom79 Nope still needs a ceiling. Been slammed with work and can't seem to get caught up to have time for my own stuff.
NICE, this is much easier, and I am sure more accurate than hand lapping. why only2? I have always used sets of 3 so I can keep them flat between jobs by lapping them.
Damn who makes that double axis level!?
Ahh Fell 👍
The grinding hold downs in the thumbnail. One thing we used to do in the shaper was to use sections of power hacksaw blades to hold the stock more securely in the vise. And when grinding bench stones. The surfaces really do not need to be parallel. A grinding vise will do. Or two sided tape. Just put some card stock between the jaws and the work. Used to use computer punch cards or something similiar.
I got a get me a pair of those stones!
So, am I the only one that keeps hearing "Can't Grinder"? I know it's Kent but it's funny to hear you guys talking about precision grinding precision stones with the "Can't Grinder"... lol
Guys try visit CEE Australia very educational solo machinist with tons of tools big machines jaw dropping technique d best
Little rude to be advertising other people's TH-cam channels in the comments section.
I love CEE, Big beautiful shop. I love that little dog. Great people. Must see.
I see those are Norton stones. I live 16 miles from one of their 'Arkansas Stone' manufactures (and there are others in my area also).....and there are no shortage of small arkansas stones available....if that is what you're looking for.
They're not that difficult to learn however once you learn it it's like riding a bike you'll never forget how to run it plus there's a lot of information out there for those prototrak machines
Now I know why my stones were "delayed".
I have a pair on order from Lance and he just shipped them this week. I guess his "guest" delayed his schedule somewhat.
Just kidding guys, it's nice to be able to see what's potentially "your stuff" going through the process.
Thanks to Lance and Adam. Greetings from Canada's banana belt. 👍🇨🇦🇺🇦🕊️🇺🇲🤞
All lathes should have T slots on the cross slide. Wish mine did.
The timbre of Lance’s voice reminds me of Vincent Price.
I like Lance's shop update. I've been looking at getting some of those stones for a while. Just placed my order.
But you need to put a mic on Lance when you have him in these videos. He's too quiet.
Oh I can see it now, me catching that spinning handle right in the Seeds!!!😭🤬 Beautiful machine
Yah, I'm going to imagine you quickly learn to avoid it.
So much beauty in one video !!!!
👍🏻
Why did you put Turcite in the leveling pads, is it to make adjusting the leveling screws easier?!
Who left the chuck key in the Acra lathe?
I am kind of interested in testing my naniwa water stones compared to these stock oil stones for flatness. Then testing for flatness a waterstone that had the traditional japanese way of flattening. Obviously Lance's ground stones are precision grounded to so they far flatter, just wondering how much of a difference in flatness.
Enjoyed the video. Why does a set need to be dimension matched if all you are doing is deburring surfaces? Is there some other purpose or something I'm missing?
Hiya Adam
What grinding wheel does he use?
Why don’t you have a surface grinder, Adam? I use mine all the time.
Well crap I was going to send you some Precision lap stones. that I've been making since losing my job during the whole covid thing.
Am I the only one noticing the key in the chuck?
tell me all about it being too low. Lathe and also my sand blast cabinet. Back pain the next day.
Did you get a new dog? Abby is smiling so happy with a puppy in her lap.
She wants Gunnar, but he is ours!!
Adam, did Lance by chance mention the average number of stones he grinds between wheel dressings?
I was about to order a set of 1x2x6 stones but don't know which type. Aluminum Oxide or Silicon Carbide? I'm very new. Thanks!
What for a granulation have the Stone?
Is that a rat terrier there at the end!!??
When I flatten my stones I stick a piece of waterproof sand paper to float glass with water. Put a grid of pencil lines on the stone and wet it then rub it across the sandpaper. It flattens very quickly. If there are any pencil marks on the stone it indicates low points and I have keep flattening it. Far quicker and cheaper than using a machine
That methoud will get you reasonably close within plus or minus a few thousand if your lucky, I use sets of three stones and hand lap them this gets me within a few ten thousand but takes forever. his stones are true to 50 millionths of an inch. so while you are not wrong. what you do, and what he does are not even close to the same thing.
@@karm65 the method I use is good enough for carpentry work.
@@KevinAmatt True, still apples compared to oranges though.
I really like Lance, i think he's a really cool guy. But i'm bummed he got rid of some of his machines. I was really hoping to see that planer he was rebuilding running. Not the Rockford openside but the other one he had.
The question I got is.. what kind of wheel did you use to grind those stones??
That proto trak is good to have.
You have to use a Diamond wheel to grind stones.
I understand the stones are flat and everything but a pair of 1x2x6 stones is about $40 before grinding. What justifies adding nearly $200 to the cost of the stones?
It is well worth $200 to not have to do it by hand. (many hours worth of hand lapping.) The diamond wheels and grinder are not cheap as well as other shop expenses. I am sure he makes a profit but not as much as you might think.
Buy the machinery and spend the time perfecting the craft in order to get these things flat within 50 millionths of an inch and I’m sure it’ll make a little more sense
13:11 That is one reason why $200. The stones you bought are hardly "flat". If you need better, then that's where the $160 goes.
@@Hoodedhorn You honestly think it’s that difficult to grind a stone flat? People do it by hand with lapping compound, having the grinder is easy compared to that 🤣
@@justinl.3587 Key words there are “50 millionths of an inch.” If you’re able to do that by hand I would love to see n in depth explanation of how you got it done.
How often do you have to re-flatten the stones, if ever? How do you use the stone? Precision surface against precision surface (stone to metal)?
It’s common to regrind them on occasion, depends on the use and how hard they’ve been abused.
what all do you guy's make. or is this just a hobby tool collection.
Just wondering, are ground stones something newer, I never heard of them until the last year on Utube?
They have a lot to do with how much OCD the client has. I have a bit of that but not enough to purchase precision ground stones.
Maybe he could put the stone on 3 points (small bullets) before grinding the first surface? To prevent the stone from tilting...
Very good Kinematic observation and in absolute terms the best approach. Having said that the first 500 or so stones I ground were done that way. Now I have found it makes absolutely no difference in the final result. We make sure the stone is stable in the set up for the first side, don't care one bit about parallelism....
This Acra lathe looks a lot like a Precision Matthews lathe : same square styling and architecture.
they're rebadged Taiwanese lathe.
same as jet, grizzly, enco etc...
So what are these stones used for again?
They are used to remove light burs/dimples/etc from an otherwise flat surface, such as the bed of a mill, or the top of a magnetic chuck. You lightly run the stone over the surface to be "stoned". Any high spots will show up polished after stoning.
Here's the link to the RobRenz video on Precision Ground Toolroom Stones th-cam.com/video/DVLXsq7pi9Y/w-d-xo.html
There are quite some compression artefacts recently. Noticed it in your boating video earlier today and in this one too....
What the purpose of leveling a machine tool? The accuracy is based of the ways being flat . These machines are installed in ships.
What am I missing?
You level to eliminate twists and bends in the machines ways. You are correct that the machine doesn't actually have to be level to be straight, but leveling is easy and gets you most of the way there. If the machine is not straight after leveling that's when you need to start pulling out shims and whatnot.
@@kal5169
Aaah
Thank you!
@@kal5169 What they don't show in this, to your point, is verifying the "level" at multiple points to make sure that it is consistent across the entire table and ways. However, with only three feet on that particular grinder there really isn't a good way to get twist out in this setup without shimming the ways themselves. With this grinder though, since it only really matters that the bed is parallel with the spindle where the wheel makes contact with the work, leveling is really only important for coolant drainage.
24:10 Nooo not Adam!