Making a part: Stainless Steel Guide Frame

The student competition mentioned in the video is Drillbotics:
drillbotics.com/
Link for the Iso30 spindle:
www.kami-maschinen.de/werkzeu...
Visit my website for FAQ, a list of my machines, my products and some project documentations:
gtwr.de/
Consider supporting me on Patreon:
/ stefangtwr
I post very regular on Instagram:
/ stefan_gtwr
#practitioner_of_the_mechanical_arts

[@TandaMadison]

Really enjoyed hearing all of the, "why I chose this approach" and tips. Always some good information. Excellent work as always.

[@Watchyn_Yarwood]

👍

[@LabRatJason]

With all the floods in Germany, and with Stephan not posting anything in a while, I was getting worried he'd been washed away. Glad to see you are OK, and posting videos!

[@sblack48]

From the pictures on his Instagram it looks like is on high ground

[@MultiArrie]

Stefan lives 300 Km or so away from the floods.

[@cyrusramsey4741]

I wondered that too, even looked on maps etc

[@tonywilson4713]

Agreed on the sentiment. Even if he's away from those areas, the fact people care matters. I'm Australian and we've had our fare amount of similar issues with mother nature in recent years and those sentiments do matter.

[@thomasrappen5906]

@@sblack48 can confirm, beautiful hill...

[@cpsutcliffe]

I used to work in a maintenance / machine shop, there were 7 of us; Pipefitters, Electricians, Welders, Painters, a bunch of multi-skilled workers, helping to keep a Victorian era Mill running at the end of last Century - then there was Old Jim, a semi-retired, soft-spoken, apprentice-trained machinist, who had joined the company from school. He spent a couple of days a week fabricating and machining replacement parts for 100+ year old Jacquard looms and I can't tell you how many hours the other 6 of us used to waste just watching him work. The finished piece wasn't always a work of art, but the process was always a joy to watch, just like your videos.

[@ASP1NALL]

Machining is great; I would recommend it to any young men looking for a job. The more manual machines you get to use the better, even if it's harder and more dangerous, you just experience the joy of it more.

[@mhc6777]

Thanks again Stefan - I really appreciate grown-up machinists like you who share your thought process during the project rather than just showing what you've done.

[@gerritvisser]

So many small tips and hints that end up making a large contribution to my skill set, thank you.

[@Watchyn_Yarwood]

👍

[@gar50172]

Very rare to see another Gerrit spelled this way, cheers mate.

[@paulrowntree2800]

Woohoo, a new video!!!! I have only just discovered your channel and I have spent the last week binge watching all your videos. Thank you for hours of entertainment .

[@Watchyn_Yarwood]

He's the best!

[@bcbloc02]

Some machinists like to leave certain tool marks. Stefan likes no marks at all. The art is removing all the tool marks and not making your part go out of spec. :-)

[@StefanGotteswinter]

Yep :) That gives more of a "product"-look, i guess.

[@NarfBLAST]

@@StefanGotteswinter Speaking of "product" look, the plastic packaging at the end of the video is a very nice touch! I really love all the detail you put into your videos and can never get enough. Thanks for the longer video, thanks for taking the time to share.

[@Watchyn_Yarwood]

@@StefanGotteswinter 👍

[@bobvines00]

Stefan, please continue making these "Why I chose this approach" videos! You can't explain too much detail about what _you_ do and why _you_ do it. I learn a lot from this type of video. I worked as a Tool Designer when I started my Engineering career and spent a _lot_ of time working with our Toolmakers. Unfortunately I couldn't run the machines to make my own designs, but by watching closely and asking a _lot_ of questions *and* taking their advice when appropriate, I became a very good Tool Designer. Now that I'm retired, I have a few small manual machine tools and can use the "lessons learned" from videos like yours to improve my machining skills. I really wish that I had been able to go through a Machinist Apprenticeship program, but watching excellent Machinist-type videos is as close to that as I can get!

[@RRINTHESHOP]

Very nice work Stefan. enjoyed.

[@alhopper2480]

Wow - looks more like expensive jewellery rather than machined parts. Beautiful work Stefan!

[@googleuser859]

Excellent Stefan, the extra detail in explaining the process was great. thank you for taking the time to record, edit and upload.

[@outsidescrewball]

Excellent video production/discussion/demonstration/build/mentoring……enjoyed, tks for sharing

[@brianally1531]

Thank you for taking the time for the tips as well as the comprehensive steps. Never a dull moment, truly.

[@bradthayer6782]

Appreciate the thorough explanations. And this part was deceptively complex. Nice tip on the scotch brite.

[@tardusmerula6102]

The poetry of mechanical engineering and workmanship. I very much like to anticipate your future steps in the process... . Stay safe!

[@ActiveAtom]

Welcome back, we missed and flood wise worried about your wellbeing even though we do not know you we love your channel and your great detailed videos so very happy to see this video today nice ending grinds. Lance & Patrick.

[@robertburns2415]

Very thorough explanation of what you were doing. I've been Machining 40-plus years I can't add anything to your evaluation. However the photography was so good that I felt like I had to put on safety glasses. PostScript I just subscribed

[@captcarlos]

Another master class from the maestro. Thank you Stephan, many techniques to absorb.

[@bigwave_dave8468]

I spoke with a gentleman who ran a large shop and he told often times engineers will specify 304 stainless because that's what they know about - he would often recommend 303 if they didn't care as it is easier to machine.

[@Joelsfilmer]

Dammit, Stefan! Not the open pen in the Tabellenbuch again! My heart can't take it twice.

[@AmateurRedneckWorkshop]

Impressive work. Thanks for the video.

[@djizomdjinn]

That's a really nice finish for a milled radius! I did something similar recently, but my radius had a shoulder at one end, so I locked my x-axis and just used the a-axis... at which point I learned that endmills are not flat at the cutting end and i'd machined a tapered bulged cylindrical feature. Ah well, I managed to get it to work out in the end, so file that one under "learning experiences". Great video!

[@Kent-Media]

Really nice work Stefan, and thank you. There are always a few valuable takeaways from your videos.

[@MichaelMoranGearHead]

Thank you! That was a great collection of tips. I love that method for cutting the crown radius. I know I'm going to use that in the future.

[@mikemichelizzi2023]

I really appreciate your letting us look over your shoulder - always something new to learn. Thanks!

[@123232ism]

Loved the Scotchbrite tip. Thanks for the detailed production making the part.

[@FinnoUgricMachining]

It's all in details. I also have good relations with the SK30 tool holders. I didn't know about them until I purchased my Schaublin SV-51 milling machine that has this, back then exotic, spindle. Later it has proven that it is not that exotic after all. That arbor in the dividing head. I quess that it was made in the same dividing head as it was used. Probably never leaving between it was made and used. That fuzzy Scotchbrite had a habitus which made it impossible to identify the material. Self centering indeed. Thank You for Your time You have used to put this show on the road.

[@jonludwig8233]

Great job as always. Really appreciate all the detail in these, there are so many small tips and methods hidden in them. 🤘

[@shawnhuk]

Fantastic video, Stefan! Really enjoyed the thorough approach. I definitely learn more about how to attack tricky processes when very skilled individuals share their thoughts.

[@solverbox]

One of your best videos this year Stefan. Thanks for all the insight and entertainment!

[@mchiodox69]

Small, precise and on the numbers. Amazing as always. Loved the scotch pad tip too!

[@montagray3761]

Master craftsmanship, ISPO dimensioning lesson and a very nice rotating fixture setup all in one!

[@toddcumberland132]

Always a pleasure to what you work and think it through.

[@toddcumberland132]

oops Made a hash out of that...... "Always a pleasure to watch you work and think it through. "

[@zachaliles]

I have a feeling you know when you're subscribers are randomly binging your old videos. Because every time I'm on about day two or three of doing that you post a new video, hahaha! Can't wait to see what you've got in this one.

[@mole2410]

Very interesting. I've watched all of your videos over the years and have picked up many good points.

[@chrisoftceo]

So amazing to see all this manual excellence in such a level of detail. Always amazing to see a true master of it's craft!

[@patwicker1358]

Thank you for going over the details. You are the most efficient machinist I know I learn a lot from your details.

[@rayeaglenz]

Fantastic video, Stefan! Really enjoyed the thorough approach. 👍😊

[@johnnyryall1400]

I love how you make the explanations so easy to understand for a non machinist. Also, your English was never bad, but it’s gotten excellent.

[@shawnlund]

Always an absolute pleasure to watch and listen to a master at work. I have learned a ton from all your videos and really enjoyed them at the same time. Your matter of fact yet humble presentation is a pleasure to listen too.

[@howder1951]

Beautiful work Stefan, I always enjoy your knowledge of materials and procedures. Every video is a training session. Thanks and cheers!

[@HanstheTraffer]

Thanks for showing stuff like squaring and deburring...we novices appreciate it.

[@calvinjutila8270]

Clear and concise description. Great work

[@JB-ol4vz]

Thank you Stefan, so very informative and well explained. As always I do reelize how mutch more I have to practice to get even close to being a machinist.

[@wmc7870]

Thanks for sharing your process. It's great to see an economical order of operations, (I wasted days in the workshop just 'doing' when I could have been improving the process) Great to see a fine example of approaching a fairly finicky part. Really enjoy your videos, and despite many years in a machine shop I learn a lot from them. thanks Stefan. Wayne

[@joell439]

Truly appreciate the apprentice details. We have so much to learn from the master 👍😎👍

[@jdmccorful]

I wouldn't say "thorough", more like "Comprehensive". Enjoyed. Thanks!

[@TandaMadison]

There is always a bit of translation like this in Stefan's videos. For example when he says "serviceable" it can usually be translated to "very nearly perfect". :-)

[@the_hate_inside1085]

@@TandaMadison He actually said the run out on that tool holder was "spot on!", then he quickly recanted to, "good enough for what he did". xD

[@paulbuckberry7683]

Great video Stefan. You always make everything look so easy, never quite the same when I go out in my shop!

[@dougvanallen2212]

Stefan thank you so much for making your videos for us I’ve learned so much from you great job

[@samcoote9653]

Always love seeing your workflow Stefan, it's so very efficient, very German. Love it. I try to follow as many of your tips and tricks and good practices as I can when I'm machining.

[@samcoote9653]

love that you seal them all individually in self made self sealed bags too. The attention to the small details makes all the difference :)

[@killerguppy2988]

Fantastic craftsmanship and video, as always. You're truly a master machinist!

[@Smallathe]

Wonderful video. Fascinating and a great tip on the scotchbrite wheel at the end (I will put that to good use!). Thank you so much!

[@omarbrokeit]

Thanks for all the added detail Stefan, really helps

[@rpmunlimited397]

Thanks Stefan for the video, as a detail minded person I always learn from you

[@mpetersen6]

Whenever I was handed a new job from my boss the first thing I did was to make photocopies* of the drawings. One set stayed clean. The other set I used for all my math, job notes, program #s** etc. *does any one say Xerox any more? **I kept all my jobs on 3.5 floppies as I would never know which machine would by open. No USB ports for flash drives on our Trak or Anilam controls. The program #s were recorded along with the drawing #. I also used to do a bit of helical gear cutting on a Barber-Coleman Series 16 gear hobber. A normal gear hobber the work and feed ratios are easily set. The work ratio is simply the # of teeth decided by the base ration of the machine. We had gears for both banjo set-ups from 22T up to around 80T. When cutting helicals the Index and Feed ratios are calculated using a constant along with an offset depending on RH or LH helix and hob. Once calculated and factored I always wrote these down. Especially the feed gears. Of course now there are online gear train calculators that will do it for you. I was also responsible for rebuilding precision spindles for 4 years. I had one of those Sony digital cameras that used floppies. Any thing out of the ordinary got photographed and the floppy stored. I had a lot of floppies

[@russellhayward2359]

Thank you for another amazing video Stefan. Look forward to the video on the spindle upgrade also 😁

[@robertdebusk6157]

You Sir, never fail to impress me. Bravo! Take Care and Stay Safe. Bob

[@MattysWorkshop]

Gday Stefan, throughly enjoyed and thank you for explaining in detail, that’s how we all learn, much appreciated, take care, Cheers

[@jameslezak8179]

Another great, detailed video, Stefan! Some really great insights in the setting up and finishing of these parts, and also great filming and narration. As always, thanks for your time and sharing! 👍😎

[@gatekeeper84]

4th part would make a nice keychain! Thank you for providing these videos Stefan.

[@wash3141]

Thanks again for another fine presentation.

[@kevinrblodgett]

Love this level of explanation. Thanks!

[@TheMiniMachineShop]

Had to watch it 5 times to understand how you found center with a test indicator.... got it!

[@metalslingr]

Great show, Stefan. Thanks!

[@JPGuay]

Outstanding as usuel. Congratulations!

[@TheUncleRuckus]

Love the Scotch-Brite pad trick 👍👍

[@youpattube1]

Excellent. Interesting. Thanks for the detailed explanation as you went along.

[@shawndangerfield2451]

AWESOME JOB STEPHAN VERY INTERESTING SETUPS AND ATTENTION TO DETAIL THANKS

[@frithjofhudepohl5731]

I want to thank you for all the plethora of videos you offer to who ever is interested in learning. I especially enjoy your building of tools like the jaws for a chuck, or the offcentre chuck, and the likes. I want to ask you, though, if you could someday put up videos about things that didn't work. Like when you later found out that a particular tool was not a good idea and why. Or when you did an iteration over a tool to actually make it work or eliminate its flaws. And of course always with your superb narration and explications as to why it didn't work or what your thoughts were on the redesign... I realise that for you it wont be very exciting. So don't feel bad about dropping this whole request in the bin... Please keep up the fantastic work and effort, and thanks again.

[@RobertBrown-lf8yq]

Stefan, Thank you for putting the extra time and effort to video, and explain in detail, your super-quality work👏 Much appreciated …. I specially liked the tip on making the little polishing mops. Regards Robert ( Sydney, Australia)

[@TurboDog73TX]

Great stuff as usual Stefan, I always learn something from Your videos.

[@Engineerd3d]

Missed your videos. Lovely work as always Stefan.

[@aldenhoot9967]

So many great tips in here!

[@uberente]

the scotchbrite wheel is a fantastic idea, i'm going to be setting one of those up as soon as i need to finish something. my go-to for finishing bores is a 1/4" rod with a slot in one end, where sandpaper lives until it falls apart, but that's not so great for surfaces =D

[@tmurray1972]

Excellent precision work, and top of the line deburring.✅💯👏🏻👏🏻👏🏻👏🏻👌🏻

[@aleksandarvasilevski7410]

That fourth piece needs to be in show room in some museum. Would gladly visit museum or how it is called and enjoy in masterpieces like this. Now wonderig if there are other people like me that like the estetic of orecisely machined part.

[@donmittlestaedt1117]

Very, very satisfying. Thank you.

[@bfx8185]

Excellent step by step explanation a even better camera work. Thank you!

[@BorisLudwig]

Nice work Stefan. I'm learning plenty from your body of work. I'm going to teach myself how to make a small fly fishing trout reel to hold the flyline. Since I've not had much metalworking experience it's a steep learning curve indeed. Thanks again for the details.

[@peterhenning7330]

I so appreciate your work on such small parts. My work was always on much larger components. I often wonder if designers consider how much effort goes into the production of components.

[@bclare2544]

Excellent video Stefan.

[@MsBrouzouf]

Excellent as always. Thank you sir.

[@toolbox-gua]

Glad to know You are OK and safe from nature in Germany. I was expecting the mill of the large radius to be turned on the same arbor, not longitudinal and avoid the facets. But then I know nothing about machining and You are my master.

[@ROBRENZ]

Good stuff Stefan! ATB, Robin

[@lorenzor3618]

Your work is impressive !

[@leafs4626]

Great videos as alsways ! Scotch brite wheels are so good for finishing, i personally use a punch to make a whole lot at a time as they do get used rather quickly.

[@lawmate]

Nice video and great fixture

[@RookieLock]

Very interesting parts... Great machining, I love the approach for the radius, thanks for sharing buddy!

[@3dmakerzone75]

Great video, I loved all the detail.

[@CapeCodCNC]

Great video! When I saw the top of the part was convex I was sure the Emco was going to be in the video, but you gotta love the rotary table. Those scotchbrite Dremel you can get from China for pennies. I got 100 each of fine, medium and coarse for like 20 bucks....

[@StefanGotteswinter]

Thanks! I have to check ebay for those cheap scotch brite wheels.

[@TomMakeHere]

Great video. Lots of good tips

[@ParsMaker]

great piece of work

[@corypride5096]

Wow, Stefan. Very enjoyable, especially for someone who had to talk for a living.

[@Preso58]

I love the way you casually make deep cuts with small end mills. Ping, snap, crunch when I try it.

[@rodneykiemele4721]

Love this type of video, Thank You very much.

[@timhess3405]

Very interesting! Last week i saw a video from the Bayerischen Rundfunk about this Projekt ;-)

[@danielscheibe8694]

ah okay, mind to give some reference on how to find it? much appreciated.

[@timhess3405]

@@danielscheibe8694 of course, i think thats the one: kzbin.info/www/bejne/eqTCm5aAgqqDeZY

[@danielscheibe8694]

@@timhess3405 thanks tim! will check it out.

[@TomChame]

That was great, very very interesting. Well done, thanks.

[@wrstew1272]

Excellent example of a professional showing years of experience. You do wonderful work, and your explanations are spot on. Another winner Stefan!

[@macsmachine2609]

Very much enjoyed as usual.

[@64pol64]

Waiting for the quill change. Nice job Stephan!