Shoptalk #25 - 02-2022

[@StefanGotteswinter]

00:02:52 Mistake on my side, its of course only 1,2 microns. (0,0012mm) Things like that happen to slip trough during editing, when listening to the same lines 5 times.

[@jonathan1427]

In other words, it's a 3% or 4% difference. Nowhere near 20%!

[@iteerrex8166]

Yup only 3.6% no biggy

[@64pol64]

Nice as always, thanks for all Stefan!! Waiting for the Next video

[@AdityaMehendale]

You also say thirty-six instead of sixty-three, but we don't mind Stefan ;) Great video. I watched it till the end, no skipping, but don't need help as I watched at 3x speed ;)

[@emilgabor88]

Question, besides the deflection, how much does it effect the chatter? Because that is the real enemy… I also prefer the grind ones, for quick setup

[@braxtonec]

Perhaps folks don't realize we would learn nothing from buying all the solutions to our problems. Learning to solve problems is the basis for developing skills. If it weren't for skilled folks sharing their time making videos, we'd be learning only to the expand the bounds of our current skillsets. I learn so much from videos like this. Thanks for sharing your skill and experience with us.

[@StefanGotteswinter]

Yep! The fact that I did so many tool builds and rebuilds early on was a huge skill builder for me - I still to this whenever possible, but sometimes I will just buy myself out of a problem (surfacegrinder) :D I am fully aware that most hobbyists have not that huge of a budget to spend on their shop, so I try to show / talk about different ways of doing something too.

[@DavidHerscher]

Agreed completely. I sometimes wonder about the folks watching these vids if they don't understand the idea of making something simply for the exercise of learning something new.

[@HanstheTraffer]

Hear! Hear!

[@tonywilson4713]

Do you guys realise you're discussing one of the biggest issues in Western Society right now? What you are talking about is skills training. As in learning from people more skilled. I'm an engineer and started watching guys like Stefan and Robin Renzetti because I have a couple of pet projects and I need to re-learn and improve by basic maker skills. During COVID I have also been trying to learn about economics and why we all seem trapped in various economic models. If you have ever heard the management line "What's your business case for that" to any proposal then like me you already know part of the problem. I've mainly listened to a Scottish professor named Mark Blyth. He studies how economics and politics interact with the rest of society. About 2 weeks ago he interviewed a sociologist who's trying to explain why EDUCATION and other things like infrastructure and health care are struggling across America. I'm Australian and we have the same issues. What she worked out was starting back in the 1950s economists started creeping their way into EVERYTHING and by the 90s had become the loudest voice in the room for almost everything including EDUCATION and with it *SKILLS TRAINING.* It was an Ah-Ha moment for me she explained why these people do this "What's your business case for that?" It explains why countries like Australia, America, Britain, etc. have shortages of skilled tradesman because to train them was met with "What's your business case for that?" I encounter graduate engineers with no practical skills because our universities are also dominated by "What's your business case for that?" Don't get me wrong sound economics are important, but something like mining companies (where I work) need to be able to dig dirt, crush rock and sell ore. They can't make money if they can't sell ore. They can't do that if the machines break down because the engineers were ignored, maintenance wasn't done and there's nobody to fix things because there wasn't a "business case" for that. In Australia (like a few other places) we need to build a whole new generation of power stations because there wasn't a "business case" to replace them. That combined with our complete failure to keep training people means we have a shortage of people to build them. *We have an even greater shortage of people who can train them.* Sorry for the rant, but people like Stefan, Robin Renzetti, Tom Lipton, Joe Pieczynski and others who not only have great skills but can also TEACH them to others are so insanely important right now. I know most of the people in this community know how great these guys are for sharing their skills. But there is a much bigger problem and their ability to TEACH is going to be damn important.

[@DavidHerscher]

@@tonywilson4713 Hear Hear. I agree completely.

[@JamesChurchill3]

Thanks for the tips Stefan. I always prefer breaking my taps by hand rather than in a machine so this will be useful information.

[@Watchyn_Yarwood]

😅

[@samcoote9653]

Well, I loved every minute of that, especially the ultrasonic stuff, as theres lots of heresay about what to use in them, and how, but if you've had yours for 10 years and not killed it, I think I can trust how you use yours, especially with the quality of your work Stefan. The collet and collet nut tip is great!! Love the new surface grinder what a lovely machine. I don't think any of your viewers would ever think you would boast. You do super fine, precision work, you need machines you can trust, and you've never bought one to flex on other people that I've seen. I look forward to seeing all the cool stuff you make with it. Now, as for me, Im off to get psychiatric help after sitting through this whole video! Thanks for all the tips over the years Stefan and hope 2022 is really good to you and the business!

[@CHIPLOAD]

Right after a couple of minutes into the video i know that the hour i will spent is well worth it!

[@buildfromsketch8102]

Awesome, really looking forward to see some "reasonable good quality" work on the BEMA :)

[@macsmachine2609]

Excellent comment on negativity is not productive. Life is so much better with a positive attitude. 👍

[@johnyoungquist6540]

I watch all your videos all the way through. Once you are sufficiently crazy they don't even treat you any more. To preserve a small fragment of sanity I watch nearly all videos at 1.5 or 1.75 times speed. to save time. You get used to the speed after a while although some folks naturally talk fast so I have to run those a little slower. Of course your feed rates and material removal rates are impressive. When I try to achieve the same performance on my machines I can't. I tried to order 1.75X cutters and they don't know what I am talking about. I've tried to get 1.75X employees too. No luck. When I meet youtubers in person that I listen to a 1.75X they seem very laid back and relaxed. .

[@Mad-Duk_Machine_Werkes]

Here in the US we have a warehouse club thats owned by Walmart called "Sams Club" they sell a Degreaser concentrate for $6/gallon that is very similar to "Purple Power", it makes 32 gallons of cleaner if you mix it by the label, or if you mix it 1:1 it will strip paint- I use it in the Ultra-sonic on everything except Aluminum Carb bodies as it turns them DARK (For those I use Berrymans) My old, worn out 1946 Brown and Sharpe No2 worn out 6x18 Surface Grinder weighs 1,400 lbs.......

[@Aleksandar_Sladic]

Congrats on the grinder Stefan! 👏 Lovely little thing!

[@CraigsWorkshop]

Yeah, I need to seek help :-) Thanks Stefan, very interesting stuff.

[@vorlon123]

Yeah, we dont machine away the eccentric ring in the ER-collets, you hear that AvE? 😁

[@adamkenworthy2421]

I was literally just about to tap some m4 threads in 316 stainless when that tip dropped Stefan. Unbelievable timing and I think you just changed the way I tap holes on my machines. Fantastic content as always 👍

[@outputcoupler7819]

You know a machine is of exceptional quality when Stefan doesn't try to modify it at all.

[@mattmanyam]

Won't stay that way for more than a year...

[@robertwatsonbath]

Nice chat, thanks Stefan. Nice TNG calendar.

[@SamEEE12]

I am a simple man, I see a Stefan Gotteswinter video -- I smash the like button.

[@DavidKutzler]

29:05 *Gotteswinter's Law:* "Just like people--if they get too negative, they don't work any more."

[@jonathan1427]

The bubble on the tap handle is a genius idea.

[@BrunoWiebelt]

dishwasher tablets are good for the ultrasonic cleaner

[@paulrowntree2800]

An hour very well spent Stefan. Though in fairness, most of it was staring at the Star Trek calendar. I will have to watch the video again and concentrate this time.

[@FesixGermany]

"Aluminium magnets are quite rare" Yes indeed 😂

[@carlhitchon1009]

ALNICO

[@rodgrainger9487]

Stop justifying buying the surface grinder - you don't have to. Rather concentrate on helping me though my envy!!!

[@ViceChief]

Hey Stefan, another great alkaline cleaner for ultrasonics is "Alconox Powdered Precision Cleaner". It's a very pure detergent; I use it for cleaning both aluminum parts and optics. When I work on optics, I often rinse with deionized water instead of ispropyl alcohol.

[@sblack48]

So for years lots of people have dumped on you for using chinese machines. Now you have a great top of the line $$$ german best of the best machine. Who will be the first to dump on you for being an elitest snob hopelessly out of touch with the common home shop machinist?? No you can’t win on the internet. Don’t even try.

[@warrenjones744]

I should buy an Ultrasonic just to clean the gunk from my eye glasses! They get nasty. I could probably find other uses too!

[@joansparky4439]

I might need help, but I like that you got a 2022 Star Trek calendar in your 'office' ;-)

[@brandontscheschlog]

I hate to beat a dead horse but why don't you use a boring bar holder and make sleeves for each size bar? The rigidity gained is ridiculous, it costs no more than a little bit of time using scrap material to make, and they are easy to setup because the holder will typically be on center height within a few thou between bars that use the same insert. I think you would be surprised at the results if you redid your test with the sleeves vs standard tool holders.

[@iteerrex8166]

Congrats Stefan on the grinder. It could be a hobby machine in a few decades, as a restoration project 😂

[@robertdebusk6157]

Thank you for sharing your knowledge and tricks with the world. You can choose to educate, or entertain yourself. I will choose the education with entertainment every time. Take Care and Stay Safe. Bob

[@mrtnsnp]

And of course a strong enough alkaline solution will damage aluminium as well. Aluminium is weird stuff, chemically speaking.

[@StefanGotteswinter]

Oops, yes, thats true :D I ruined a fixture at work that way, by forgetting it over night in an alkaline cleaning bath.

[@mrtnsnp]

@@StefanGotteswinter I guess I'm not going to like that reply, too mean.

[@rexmundi8154]

I’m so pleased to have come up with the same solution for tiny hole spotting. I made the same tool from a broken PCB drill using a setup kind of like you’d use to cut facets in a gemstone. I needed to drill some 0.002" / 0.05mm holes in PEEK tubing and I needed to spot them first. Thanks for the video. I really appreciate your skills.

[@richardthomas842]

I must need help enjoyed the video all the way through, very nice your new grinder

[@MachiningandMicrowaves]

00:26:43 63.4 degrees - I guess you are testing whether we are paying attention!

[@sinisatrlin840]

Cool grinder. Expensive is relativ term, when it makes money and makes you happy in process, than it is not exspensive.

[@paulbadger6336]

Thank you Stefan, I am seeking help as you recommended, but the help , unfortunately, is as rare as you are. Your attention to even the subtlest details combined with your humor makes for an enjoyable experience.

[@alungiggs]

Hi from Amsterdam. Is it possible to use coolant with the new surface grinder? Which I really like by the way.

[@StefanGotteswinter]

Mist setup would work, flood cooleant not without adding a tray. I see a way for doing that, but I think I can live without. A lot of toolroom grinding is done dry and people find ways to deal with heat input, thermal growth and wheel behaviour. Sometimes I might use cutting oil or a wax spread on the part, if I grind something very soft or gummy like copper or soft steel (especially a magnet chuck)

[@dan4653]

"If you made it this far..." You might not be fully considering what details your viewers pick up, even when watching a shop talk video. There's a lot of learning done just understanding how any why certain decisions are made. Things you take for granted, are sometimes very meaningful to the rest of us.

[@dekleinebozewolf]

Love the Star Trek calender!

[@stevensmart8868]

This vid was a bit of a grind. But well worth it. Cheers and congratulations on the new machine.

[@andli461]

”You really need to seek help…” 🤣😅 LOL.

[@emiliog.4432]

Micro 100 boring bars have these flats, so if a manufacturer is using them, they must be ok. Their flats design is different with a repeatability feature on the end.

[@timhess3405]

New music, who dis? Bloody awesome Maschine!

[@diegovianavillegas3297]

I desperately need help, one hour of video went like 10 mins. Regarding the wheels for small grinders, I find very very difficult to find wheels in low hardness grades for my Saim e4 (very similar to your lip515). Where do you find this 46j orange wheel? Thank you Stefan!

[@StefanGotteswinter]

I buy 46grit J hardness from H.B. Schleifmittel here in germany. How do you like the Saim? I considered a hydraulic one, but the ones I looked at, did not have a manual table traverse.

[@diegovianavillegas3297]

@@StefanGotteswinter Thank you for the tip, I'll look for HB Schleifmittel. Il like my grinder, but it's in the same situation as your lip, it had a hard past life and after a ton of work I get good results out of it, it has an optional planetary stage for the X movement with a lever, that makes long grinding sessions less effort intensive.

[@sean.chiarot]

I guess I need to seek help, lol. Sure, I can buy pretty much any tool I need, but I learn so much more by making it, and it's so much more gratifying when I use it. And I've never taken any of your machine videos as you bragging.

[@donmittlestaedt1117]

With deep respect I say, sick minds stick together, and I would prefer to see your your videos or at lease 95% of each video. Thanks for the work you put into them.

[@fuzzy1dk]

I think clickspring has also shown the pyramid shape used for a custom reamer

[@bobengelhardt856]

Admit it, now - you've been thinking how you would put servos/steppers on the grinder axes, with an Arduino controller. Not CNC, that probably doesn't make sense, but parameters for stroke, side step, and down feed. Limit switches of course. Key it in and walk away. All that sitting & stroking is gonna get old.

[@StefanGotteswinter]

The grinding work I do does not lead to very long runtimes, so, no, havent thought about that. I have run automatic grinders in the past, its nice for large platework, but thats not what I am here for :)

[@WarGrade]

Stefan, don't be *ashamed (*to heavy a word tbh) of wanting something & having the ability to afford it, I (as I am sure everyone else) can see your personal work earns the money to pay for these things & the income you generate helps looks after you & yours (or I hope so). You are also the type who will look after that investment,. On top of that you take the trouble to film & enlighten/educate so many others (& I know just how much time that consumes). I do totally get why you humble yourself as you do, as much as I try and do the same on my wee channel, the equipment, the knowledge & skills are know where near that of yourself. I still feel privileged to have the equipment I have & the ability to share the things I do with to others & I remind myself I am lucky to have had the ability to earn that right. One person out there find this an encouragement to do the same then I am on a winner, I am sure you have earned that by encouraging many. So stick to it & carry on sharing the joy you have doing the things you do & using the things you can afford to. Andy

[@swanvalleymachineshop]

Nice grinder . Certainly a different but useful configuration . Both of my grinding machines are German as well , the WMW ID grinder & the Jung surface grinder that i have just bought . 👍

[@zxspectum]

I was using glass jars of cleaner in my ultrasonic for same reason to reduce the amount of wasted cleaning fluid. But I had assumed that the glass wall of the jar, was reducing the effectiveness of the ultrasonic wave passing through the jar. Thus reducing the cleaning action. Am I wrong and can go back to using the glass jar method? I might do the aluminium foil test. One in the jar the other outside and compare the hole rates as a gauge to see if there is any difference.

[@StefanGotteswinter]

The glass definetly weakens the effect a bit - But for me the waste-reduction is more worth than a few percent of less cleaning effect or a few seconds longer in the bath.

[@wrstew1272]

And about your final comment, who in their right mind would skip the end of the video? You are far too humble (if I may take the honors of calling you my friend even though we have not met in person). You provide incredible amounts of information and education for free in a profit driven world. I am constantly amazed by the wealth of experience that you pass along to those of us who didn’t have your skills and opportunities. You are the kind of person that I respect and would be honored to be associated with. Great stuff you are doing, please accept my thanks for doing so.

[@bobweiram6321]

It costs around $40K, since you said you could have purchased a Haas minimill for the same price.

[@StefanGotteswinter]

yep, thats pretty accurate :)

[@Engineerd3d]

One more thing. You may want to change the last part of the video in the future. It's 2022

[@StefanGotteswinter]

Already changed my template :D

[@tonypike5785]

Thanks

[@Max_Marz]

I typically tap small threads with a Jacobs 8.5N chuck clamped on the tap, the shank of the drill chuck in a drill bushing. "The ER collet has an eccentric boss that we DONT machine away" Oh god the nightmares that brought bad. Bema grinderrrrrr What an awesome machine. The aesthetics are so delicious.

[@lesmaybury793]

Good stuff and watched it all. The advise on using the ultrasonic cleaner is priceless. 👍

[@Koptokaf]

"If you made it this far - you need help". Stefan, my man, you are the help i've been needing all this time.

[@remcolangbroek656]

Just out of curiosity, since you mentioned it took a while to earn enough money. What is your philosophy on financing tools like these? If you put a piece of tube in the chuck or collet, you reduce the risk of accidental runout on the tap. That would be a bushing then...

[@StefanGotteswinter]

I buy when I have the money, not financing in general :)

[@remcolangbroek656]

@@StefanGotteswinter Thank you. But I would like to know why. What are your arguments against/in favour of financing. Maybe that is better suited for a video?

[@StefanGotteswinter]

Ah! Thats easy: I was raised that way. We never bought things that we could not pay right away and I keept that mentality. It's also supplemented by me beeing very risk averse. Paying the machine in one chunk has the topic off my table right away. May not be the best way for a business, but I feel very safe that way.

[@remcolangbroek656]

@@StefanGotteswinter Good old fashioned common sense. It's better to invest in yourself, than ending up working for the bank. Good things come to those who wait.

[@jothain]

Not a machinist, but that bema indeed looks really nice quality. Out of curiosity, are those grinding wheels expensive commodity (I hope that's the correct english word)? I assume they're way more better materials than used in normal bench grinders wheels? *edit* Oh it was actually mentioned in the video. Much cheaper than I anticipated. Thanks for mentioning it. *edit2* I'm bit surprised that table movement doesn't have any automation. Would be dirt cheap to have solution to it from the factory. Though easy to make self.

[@StefanGotteswinter]

On toolroom style grinders you will often find purely manual motions without any assist :) The nice thing: Those are machines that last forever.

[@jothain]

@@StefanGotteswinter Profession being packaging machine mechanic, I kinda see your point. Automation can at worst be the thing that can lead to devastation and I suppose the manual labor in this case isn't that bad thing as mechanics seem to function very effortlessly. I guess automation is more for stuff for ie. engine shops etc. that grind vastly larger objects :)

[@StefanGotteswinter]

yeah, also for larger toolroom grinders - All our surfacegrinders at work are hydraulic or cnc with servos, since we do a lot of plate-work for our tool/die/mold shop

[@jothain]

@@StefanGotteswinter Oh there are hydraulic controlled models too. I didn't have a clue. Sounds like equipment that would be interesting to see. Those businesses are pretty much always in the category of "No information to any outsiders" :)

[@joeldriver381]

Congratulations! That is a very cool machine. Your hard work and skills allowed that to happen, and you should be very proud of it.

[@skypatrol716]

I made it thru the entire video. Guess I need help😂 Good content👍

[@felixm.8910]

Maybe there is a chain tensioner down in the drive for the table traverse, just like a timing chain on an engine has.

[@StefanGotteswinter]

That could be a very likely option, yeah

[@establisha]

Wont the masonjar stop the ultrasonic waves?

[@StefanGotteswinter]

Nope, they transduct trough the glass without a problem :)

[@establisha]

@@StefanGotteswinter i guess the wave length must be longer than the walls of the jar then?

[@a320214]

As usual : Clever and very interresting !! THANK YOU STEFAN !!

[@IslandHermit]

Two questions: 1) With the "pyramidal" bit, why not make it a true pyramid with four flats? That would get rid of the added complexity of calculating compound angles when grinding the flats. 2) I have no experience at all with surface grinders but I've seen that they're normally dressed using a diamond tool. How long does that typically last before requiring replacement? And yes, I watched every minute. Always fun to watch a true afficionado geek out over a new tool.

[@littlejackalo5326]

2:52 much less... 1.2 microns. A 3.6% reduction in rigidity.

[@StefanGotteswinter]

correct, mistake on my side.

[@littlejackalo5326]

@@StefanGotteswinter no prob. Just mainly bringing it up for people who may not be familiar with metric units. Life your videos, Stefan. You're the man.

[@StefanGotteswinter]

Thanks :) I added a fixed post with the correction.

[@robertklein9190]

It's always an interesting hour long video on a grey dreary day. It's not always how much the machine cost, but how much enjoyment Stefan gets out of using it in his little factory. I'm sure he's got visions of future projects already, just have to wait for the warranty to expire. I'm impressed that he's got his own root cellar, so , he better get going in the garden soon.

[@gregeconomeier1476]

Another good and informative video. Well organized and presented. Thank you. OK, OK, I will seek help.

[@hoyospetrola]

Are you going to sell your old small grinder ???

[@StefanGotteswinter]

A friend is taking it off my hands :)

[@captaink118]

I thought it was a best practice to only turn the tap 1 turn then back half a turn. Is that not required?

[@StefanGotteswinter]

Not with decent taps - It can even cause problems like chipped cutting edges or snagging of chips if you chipbreak with them. The 1 turn forward, half turn back is from a time when taps where really shitty.

[@TheUncleRuckus]

Congrats on the new grinder Stefan! I'm excited to see it used in some upcoming projects. 👍👍

[@davidcolwill860]

Perfect timing I'd just sat down for a cup of tea!

[@Ryan-dz3jo]

Thanks Stefan, your work inspires and I love the grinder layout, very nice machine.

[@barrygerbracht5077]

You don't need to be embarrassed about buying toys or tools for your shop. A business expense is justifiable for any reason and if you have the cash to spend on your hobby that is just as OK. How many people have a $50,000+ sports car, RV, jetski, record collection etc. as a completely frivolous waste of money? Enjoy your life, you only get one shot at it.

[@adam19890911]

How do you like the 3d mouse? Do you use it occasionally, or all the time?

[@StefanGotteswinter]

I use it quite a bit, but I can do without, too. Its nice when you have to select a lot of edges/surfaces in Cam work - Paning/Spinning around the model with the 3d model and clicking the to be selected features at the same time.

[@youpattube1]

Thanks for that clarification. At the time I thought, hmmm... I need to brush up on what constitutes a micron. But I am retired, so it went on to the (eventual) to do list. Good shop talk video. I like your sense of humor, but sometimes I can't tell if what you are saying is in that vein. You mentioned aluminum magnetic hold downs (I forget what the correct term is) being rare. Are they real ? Do they pass the flux thru, or was that a little shop humor ?

[@TommiHonkonen]

I bought ultrasonic cleaner. Then I tried to clean my glasses. The next week I bought new glasses. Good thing the the glasses was very old already. Might have been too long in the bath, the coating started flaking off.

[@bigwave_dave8468]

It's true, we all need help :-)

[@frankward709]

Congratulations Is very gorgeous machine Many hours of fun Thank you I enjoyed the whole video Is Frank from Walla Walla Washington with FlecoTech

[@Maikshifter]

I watched the whole video, Stefan...but over 3 days...and I resorted to 1.5x speed at one stage...so does that count? 🙂 But seriously, I always enjoy your videos and I never feel like I have wasted my time. Thankyou.

[@glennstasse5698]

Congrats on that new machine. Business is looking up and I’m happy for you it is. What will you be able to do now that you couldn’t before? Bigger parts, clearly. More accuracy? Looking forward to seeing those jobs. So, no doubt, are your customers.

[@JayKayKay7]

:I'll be back" spoken in a English-German accent... Where I have I heard that before??

[@ydonl]

Aren't you reducing the stiffness of the tap 20% by grinding a flat on it? ;) Thanks for spending so much time on the grinder -- very nice machine! And thanks for ALL of your videos. It's not just the "things", it's your way of thinking that is so helpful. Instead of ignoring obvious issues that everyone just ignores, you notice them, think about them, fix them. I can learn from that.

[@FinnoUgricMachining]

Excellent content as always so thank You! One detergent that is alcalic and which is easily available is the dish washer detergent. Those are designed to remove fat and not to harm cutlery. However, alcalic solution will usually attack aluminium. That is especially true when the detergent contains lye (sodium hydroxide). Actually having aluminium shavings in a lye solution produces hydrogen. This is because lye and water react with aluminium creating sodium aluminate and the hydrogen will just bubble out. That reaction can be quite violent and the hydrogen gas is ... well ... it is what it is. Edit: I need to seek help 😊

[@htral]

Dude - you play hard!

[@artmckay6704]

Skip over 90% ? Are you mad? Your stuff is always pure gold! I'm not skipping over a single second! I am happy for you that you got the new grinder! It looks like a wonderful machine. Very precise and very well built! Thanks for doing these videos! Very much appreciated! :)

[@michaelcruz1434]

Excellent and informative video, I really appreciate the knowledge and experience you share. I’ve known about ultrasonic cleaners, but didn’t understand how and why they work. Now I have one on order for a carburetor and log splitter project I have. The tapping tips are excellent and I could have used your techniques many many times. Thanks so much.

[@TrPrecisionMachining]

very good video stefan..thanks for your time

[@ThAtGuY-u9d]

Ultrasonics are the best. I can’t say how awesome they are with the right cleaner. I have a large one and barely ever have to scrub anything anymore. Parts come out 100% clean. Using the jar is great for nasty parts.

[@MRCNC1967]

New solid carbide boring bar = $250. Being able to draw on your skills to make a boring bar in a pinch = PRICELESS

[@holgerlauer]

Hi Stefan, Perfect as usual :-) Thanks a lot. I´ve tested the small center (starter) drill by manufacturing a small sampel. It works great!!!

[@markdavies8037]

Hi Stefan, do you lightly oil the ER collets after cleaning, to stop rust occuring?

[@StefanGotteswinter]

Nope, I just blow them dry, never had issues that way.

[@markdavies8037]

Thanks stefan, nice and easy then. Thought they may start to corrode. I have a small ultrasonic cleaner that i have used on a few micrometers for a few mins at a time just to get grime off. They certainly do come in handy. Ive put a bit of clock oul on those and they are great.

[@thebotformalityknownasdale2564]

Out of all the Chanels I watch yours give me the most inspiration to create the tools and equipment I want. And I do watch 100% of your vids so you might be rite I do need help thanx man keep em comeing !

[@CRUZER1800]

I AM seeking help.. I am watching you... Great little machine. You have every right to be proud. Russ

[@johnmacdonald6201]

Stefan, totally enjoyed the video, especially with the new grinder, a very precise piece of equipment for the shop, regards from Auckland NZ.

[@kolbroshop884]

Awesome machine. So basically you could have bought yourself i nice BMW 3er reihe, instead, you bought a grinder. Respect !

[@StefanGotteswinter]

Yeah, but then I would have to drive a BMW :-\

[@kolbroshop884]

@@StefanGotteswinter whats wrong with the beemer, they say that every real german drives it.... 😄

[@johncarey9149]

I love your idea for using the machine for aligning the taps. Very simple, but very effective, thanks

[@outsidescrewball]

Enjoyed…great discussion/demonstration….awesome grinder

[@tinayoga8844]

For many channels I will set the speed to 1.25. It allows me to watch more with less time. At one point in this video I did check to see how much longer until the end, and found that it was almost done.

[@Margarinetaylorgrease]

Soap is vegetable oil and caustic soda (basically, sort of). So an alkaline cleaner make sense to me. I'd love to hear from someone if they know more.