Shoptalk #23 - 01-2021
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- Опубликовано: 13 сен 2024
- 00:00:30 Sorotec Alu-Line 0605 Cnc Router
00:10:45 Milling and drilling glass
00:23:20 Luer Taper adapter for Air Blow gun
NASA technical reports server:
ntrs.nasa.gov/
Method for milling and drilling glass:
ntrs.nasa.gov/...
Luer Lock model on Grabcad:
grabcad.com/li...
Visit my website for FAQ, a list of my machines, my products and some project documentations:
gtwr.de/
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#practitioner_of_the_mechanical_arts
happy new year Stefan! let's see more of the new machine!
More TOT this year we hope !
Thanks Tony - More on the machine is coming, indeed!
Yeah, we rely on having your videos to stay sane.
It's great to see you back Stefan. I've no doubt your Dad was super proud of you. Snarky comments are a sort of ultimate compliment that fathers pay to their sons.
Sometimes life can get you when you aren't expecting it. My heart goes out your way. We have not met, likely we never will, but everyone suffers and none of us want anyone else to go through what we have ourselves and that means on some level compassion makes us most human when we see another suffering. If you were here I would buy you a beer and a few moments of silence because sometimes that is all someone can do, share the burden. You are not alone, even when you don't see anyone in the room.
What that guy said. Stefan content is very much appreciated and is a rare excuse I give myself to stop working for half an hour every few weeks / months. Very sorry for whatever crappy thing happened. Hope that your excellent job/hobby gives you some small degree of distraction at a rubbish time.
Thanks Stefan, I was a bit surprised at the glass machining🤔😁👍
Milling glass. A bit like watching a bomb being defused, yes?
Good to see you back, you've been missed, Stefan. I hope the break was just what you needed. A new shop tour would be good to see one day. Let's hope 2021 is a better year!
Hope you're doing as well as can be, Stefan! Your content is always appreciated, no matter when it's published.
If you sit the piece of glass on top of another sacrificial piece (called a waster) the shelling / blowing out is restricted to the waster and not the workpiece. The waster provides support to the weak corner of the glass hole / edge. This is common practice in optical manufacturing, although we would normally use sintered or electro-plated diamond, non-fluted cutting tools. For best results, laminate the workpiece between wasters, bonded with a layers of beeswax/resin mixture.
Totaly makes sense to prevent blowout, thanks!
Nice new machine, love it. Never seen glass machined, interesting. Love the Luer lock idea. My sister in law is a vet. (animal doctor) she supplies me with all sizes of old stuff, I use it all the time. Thanks for sharing and your support.
If I haven't told you before, I appreciate your wondeful efforts to teach us the excellent things that can be manufactured in the world of machining and I love the few videos of your countryside. I don't think I will ever visit that area and am happy to see as much as I can.
All the best wishes to you for the rest of 2021.
Good on you for taking time for yourself; you owe us nothing. Appreciate yah!
Super cool, I had no idea you could machine glass! This is one of reasons I love this channel, I learn something every time. Now I can't say I'm not a little disappointed that you didn't film the building of the CNC but, I can understand and respect why you didn't. 👍👍
"No idea that you could machine glass" Who would have thunk it!. Next time you are in the city have a look at hinges and locks on the entry doors to those skyscrapes!
,
Happy new year, Stefan! I'm afraid that anything posted in a RUclips comment is liable to sound like hollow words but, for what it's worth, I'm sorry for your loss. A cruel end to a cruel year for us all. He sounded like a good man. I hope his legacy will continue to inspire your own. Stay strong and cherish the good times. All the best wishes to you and your loved ones from some stranger on the internet. :)
Great to see you back, Stefan. I had to hit your Instagram to find out about the devastation you mentioned. My sincere condolences - losing my father was very difficult, I understand the feeling. Thanks for putting this video up. Oh, now I'm following your instagram so I can see more of what you post also.
Happy new year Stefan! Glad to see you are starting to feel good enough to do some videos. New machine looks great and the glass was awesome.
ATB, Robin
Thank you Robin! Yes, I think I get back on track :-)
Hello from Florida USA. The glass machining is very interesting. Have not watched in a while. I have been very busy moving and building new shop, nearly finished.
Tolles video! I can't believe that you can mill and drill glass with carbide. Amazing
Happy New Year Stefan!! The new shop is as bright as the snow at the end..Your video's are among my favourite on YT. You and Abom79 were the reason I purchased a Lathe and Mill..I purchased a VDF Heidenreich & Harbeck 18 RO lathe last year, I have been using it for making tooling and odd parts in between slowly refurbishing it. Love your videos.
Andrew
Australia
Huge pleasure to see you back in front of the camera, and completely understand your alone time in the shop. Many thousands of people out there respect you and what you do, including me. It is our privilege that you choose to share. Sincere thanks.
I am so glad to have a Stefan video to brighten the gloom! Thank you and Happy New Year. All the best to you and everyone.
Hey Stefan, Thanks for helping out Alex with his CNC project. It was very nice of you!
Hallo Stefan - immer wieder sehr interessant Deinen Shop-Stories zu folgen !
Jahre können "Devastating" sein - manchmal gleich doppelt und man wünscht sich auch nach Jahren, man könnte nochmal reden.
Ich wünsche Dir weiterhin interessante Ideen und Aufträge für Deinen Shop und freue mich auf weitere Folgen - auch mit Deinem feinen Humor.
Thanks for making time for us folks during this difficult time. You are such an amazing and inspiring person Stefan, please take care of yourself!
First a video from Robin Renzetti, then one from you. An excellent start to 2021.
Dang bruddah! Haven't seen an upload from you in a while. Always learn something when I watch.
Great projects !!! Cutting glass with a carbide end mill and tap magic. To add steel to glass, a flexible isolators can used to mitigate thermal expansion differential. Thanks for sharing.
Another shoptalk! Always a pleasure to see one of your videos!
Happy 2021 and all the best in terms of your physical health and enjoying your machines, both as a serious professional and a spirited schoolboy at the same time! The glass cutting only exemplifies your admirable ethos to machining! Thanks for your videos that I always look forward to watching. Stay safe.
I have worked with glass for a good while. Glass can take very high compressive forces but will not tolerate tensile stress. Usually we drill glass with diamond coated drills but i quess its the same with tungsten. When making a hole in glass you push through only half way. Then you need to drill from the other side rest of the way. This way all cutting forces are compressive and glass wont brake. When dealing with glass the most important thing to keep in mind is that glass can take huge compressive stresses but will brake with little tensile stress. This is the way glass cutters work. You make imperfections on the surface and make tensile stress on that side and glass breaks along the line of imperfection.
Thanks Stefan for your content. Always brightens my day when i see that you have uploaded a video. Stay strong for a better year. And may he never be forgotten...
I'll be back -- that sounds ominous, in a German accent...
I always greatly enjoy your videos, especially your gründlichkeit and depth of knowledge.
All the best from the UK. Here's hoping a better 2021 is coming. Thanks for sharing your shop and I look forward to more!
Good to see you. I'm guaranteed to watch a shop talk whenever you feel like making one Stefan. I hope 2021 is better for everyone.
Nice to see you back Stefan. Condolences on your loss. Can’t wait to see more with the new machine.
The chip breaking abilities of those little carbide tools is most impressive. ;-)
Looking great! Any plans for dust covers? I've got similarly exposed rails and ballscrews and am thinking about HIWINs 'advanced wipers' vs months of work for real telescopic dust covers 🙈
just search in aliexpress for: "CNC gebrüll akkordeon" ;) BeiFute has good offers.
for the Y axis I think a simple aluminium angle bolted to the top of the table on each side so chips can't fall onto the rails would go a long way
There are some very good ones in aliexpress.
In alibaba they can make you cusom guards from wax cardboard for less than 100eur.
Back in the late 90's we were using standard PCB carbide drills and end mills to create 350 um (0.014") flat bottom holes in glass microfluidic chips - Even got a patent for the process. The machine-shop wouldn't let us use any of their equipment because they were certain that you couldn't "machine" glass and they were horrified by the idea of ground glass all over their machines. We ended-up working in the glass blowers shop on their drill press with about 100 um of runout and no way of centering the hole other than eye-balling it! We found that so long as you keep the cutting face cool and can remove the chips, carbide cuts/grinds through glass like a dream. When drilling through the face the blow-out can be minimized by bonding several layers of glass together with Crystalbond (commercially available, don't recall the product number) and putting a sacrificial layer on the bottom. If the glass is fully supported it won't break-out (too often). Very cool to see you do it with larger tooling!
You’re a legend Stefan.
Next week: TIG welding glass. ;-)
This is some great info. I just finished up some projects involving mirrored glass. I used several diamond impregnated Dremel bits (dry) and my Tormek slow wet sharpener. These work but took forever. I'll certainly remember this video! I do admit, the Tormek is extremely preferable to the Dremel bits (less dusty and violent). And yes, I wore a mask!
Wish you a better year too! I'm very glad you're back , it was a pleasure to watch your next shop talk on Saturday evening. My router is also waiting for an upgrade, new JGL 80 spindle for ISO20 holders is waiting in the box, hope I'll find some time to replace it this year...
I hope you have a good 2021 as well Stefan. Take care and take you time. The video's are still enjoyable and no pressure about releasing schedule. I'm still watching 4 year old video's from you so there's no hurry ;-). Take care.
Nice to see you back, 'we' missed you
Glass drilling/milling experiment was interesting.
About 15+ years ago I bought some 'glass drills' which were more like spear point spade bits.. Came with instructions .
Never thought about milling glass though, may have to try it.
Luer lock was something I didn't know was actually available unless you were 'medical, dental, hospital, etc' and needed them by the hundreds.
That adapter will be just what I've been looking for to blow out small air passages in carburettors I modify for 'vintage' (1960's-70's) motorcycles
I’m a tradesman in the US and have seen glass men use hand drills to drill holes in glass on site. They also use belt sanders to chamfer the edges.
I'm surprised you don't center punch the glass, as obviously you like living life on the edge- machining glass, driving on the wrong side of the road!!!!
nice to see you back. happy new year
Gday Stefan, all the very best for the new year, the new Cnc router looks a very nice machine, I never knew or seen glass machined before, I was expecting to see the glass break, very interesting, as always, throughly enjoyed watching, thank you. Cheers Matty
Stefan, words cannot express how much I look forward and learn from your videos! So much thanks, so many good wishes for the new year!!!
"We won't centre punch it"... That was a German joke, wasn't it?
Anyone who says Germans don’t have a sense of humor hasn’t been around many Germans. Admittedly, it’s frequently humor along the lines of falling into a cesspit or having fingers unexpectedly removed, but it is humor.
@@briansmithwins I suspect my sense of comes from the Germans side.
Yes, it was a German joke, German jokes are no laughing matter!
When Germanic tribes, Angles and Saxons invaded what we call ING_land today, they have had scoured their motherland from the most valuable resource... a sense of humour. So, to these days, ING_lish have the excess of it but many of those who were left behind work hard to replenish this treasure. Stefan is a good example of a successful devotee in this area. Still, a germanic sense of humour has been very challenging over centuries for many.
Glass. With a milling cutter. I'll be darned! Happy New Year from our wee island in Virginia USA, hope 2021 is better or at least more entertainingly weird for all of us. Nice looking router too!
Looking forward to seeing the new machine in action. Love the tee shirt.
Very interesting! Maybe the chipping on the top edge of the glass could be prevented with a straight flute or down cut endmill
Very glad to see you back. Hope 2021 is better.
Happy New Year to you and family. The part about machining glass was very cool! Thanks for sharing and good luck with the new machine
Happy New Year Stefan. My heart to you and your family. Just know that it gets easier over time & it's totally OK to sit alone and still have those chats with him.
I have some of my father's tools & when I pick them up, I say "C'mon Dad, let's go to work". Stay safe and well, all the best for 2021 :)
Beautiful.
Very interesting. The break out on the top surface of the glass was due to the helix angle of the tool. As others have said a downcut spiral would solve that so long as the cut does not go right through.
Great to see a new video Stefan. Nice machine - looking forward to seeing you accurize it - we all know you'll want to make improvements!! Thanks for sharing your time and expertize.
I cover the base side of glass with self adhesive vinyl sheet or masking tape to prevent blowout or fracture. Seems to work ok provided feed speed is quite slow and no air pockets in the substrate. Great vid as usual.
Happy new year.
Congrats on the new machine and thanks for sharing a mind blowing (but not glass blowing) video on milling glass.
It's always good to know - even if I don't plan on doing that right now... or ever :)
Happy New Year, Stefan. Interesting and instructional as always.
Thank you. I was very happy to see a new video from you this morning. I saw the new machine on the Instagram and was looking forward to seeing it on RUclips.
By the way, I was taught [many, many years ago] that the preferred coolant for cutting glass using typical spear type widia drills was [lamp] kerosene. And to prevent blowout I usually put the glass on a small piece of rubber located directly under the planned hole (with corners supported by something soft, like a soft foam).
A good start to the new year is a new posting from Stefan. Thanks.
Happy New Year to you and the rest of the viewers.
Thank you for the glass work. Not sure where I would use it but another page in the notebook, tool in the toolbox, etc.
Enjoyed...thanks for your time in sharing
Love the new machine and all of the
information on glass work (amazing)
Great video and thank you
Stay safe!!!!!
Happy New year.
Fantastic information on glass machining thank you so much! I get asked to do this quite often at the day job and never got tight sizes with diamond abrasive jewelry type tooling. 👍👍👍
Totally understand the silence, and if you ever need more, take it. We'll be here when you get back. Also, learned something (multiple things actually) from this so big thumbs up.
Vacations are needed as well. Glad to here you took some time for you, we all do, love the vids
Great to see you back at video making. The glass milling was awesome. Great idea on the luer lock tips for the blow gun.
I understand the need for the alone time to work and get your mind off of certain things. Been a rough year for many people for many reasons. Thank you for the video.
Love your content! I agree 2020 was a mixed bag of emotions, I personally missed the regular videos but I caught hp with some of your older content. May you have a prosperous 2021.
Thanks for the nice little chat, very interesting outcome on the glass machining. I have had luck with some small diamond coated drills, but did not thoroughly check the exit side like you did. Anyways, Happy new year Stefan, peace and good health to you and your family, cheers!
And thank you too Stefan for such a good content. All the information generosity is much appreciated as much as enjoyed.
Keep up the good work. 👍
May I wish you a healthy and prosperous 2021.
Excellent addition to the shop Stefan, lovely looking Machine.
Thanks for sharing and stay safe all.
Best regards from the UK.
John.
Happy New Year to you Stefan. Love your Shoptalks. Looking forward to more. Stay safe everyone.
Long time sub, I don’t say much, but I really enjoy this channel/content. Thank you. And machining glass who would’ve thought, awesome 👏!!!!
Thank you!
Thanks for the video. I never thought you could drill / mill glass like this. I’ve done grinding with diamond coated pins with good results. I hope 2021 is better for all of us.
Thank you for working on these videos, at all, in these sick times.
Happy New Year Stefan. Thank you for sharing your time and many talents! All the Best... Chuck
Fantastic scenery at the end.
Normal drilbits can be used to .
Back in the day , we used a round silicon bead to make a puddle .
Fill puddle with petrolium .
And start drilling..oh ja not in hammering mode offcourse..lol
Had big seawater reeftanks , and DIY them myself.
Even filing glass is possible , well done like your calm narration .
Greets from the Netherlands Johny geerts
Glad to see you back and with new machines and techniques. Plus a ride through the countryside! What’s not to like? Stay safe and we’ll, Stefan, and Happy New Year.
Kovar is used for tight mechanical contact with glass. It has the same thermal expansion behavior.
Stefan, it is always a joyous occasion to see that you have been busy filming (?videoing?) and editing to educate me / us with your knowledge and experience. ALWAYS appreciate your time and work, you graciously and grammatically show how an educated enthusiastic person shares with fellow enthusiasts. Bravo, and 2021 is here, the vaccine seems to be working for those able to be early in line, and you are making content. I can sleep restfully now! Greetings from the States.
Happy new year, Stefan. I am glad to see you posting again on here. Wishing you well sir.
Thanks Tom!
Congrats on the machine.... glass machining 😳, wow did not see that coming... need to try that one out ones
Hope you have a good year Stefan!
Don't worry about your upload schedule. We're very lucky with the videos that you do upload and I've benifitted many times from them as a instrument maker myself.
Many thanks
Great to see another video. The shop, the machine and even the T-shirt is a switch.
Perhaps you sould make your enclosure out of hardwood and glass as you now have a way to drill and mill glass. Tempered glass would be easier to clean and far more scratch resistant than Lexan. Would another solution to keeping the Luerlok adaptor attached to the air gun is to thread the adaptor and the air gun and use thread locker to keep everything in place. Stay safe.
Stefan, life has a habit of slapping us all in the face sometimes. I do hope you are ok.
But, if you never have problem's, the good times will never feel as bright & joyous.
Hoping things get better in 2021, last year was a strain for anyone who wished to do the best they could for them self & the ones they love.
Things here in the UK are worrying, for many reason's, but lets not dwell on it any more.
Over the holidays I have been messing with an old (and basic) belt driven CNC router, now up and running I will see how this takes my fancy before moving up!
Keep, doing what you love & make the videos you want.
Andy
Stefan, again you do the VERY difficult,, and make it look easy. i bought diamond drills, diamond coated twist drills, and diamond core drills. just to do basic glass "working". but they are abrasive tools. the endmill you used is just carbide,drill too! wow wow WOW!!! poppy's workshop says HI
Schön das Du wieder zurück bist.
Endlich wieder Shoptalk, habe ich schon richtig vermisst.
Schöne grüße aus der Nachbarschaft
Happy new year. Thanks for all you have time to share. Always incredibly interesting and inspiring. 👍👍😎👍👍
Happy new year good to see you back.very interesting idea of milling glass ! Keep well look forward to more as you get time. THANK YOU
Thanks for sharing Stefan. Great stuff that you let us watch. I wish you a healthy and the best wishes for year 2021. Stay Safe.
Your router is very nice, I am so jealous. Having an enclosure is a must, I machine a lot of HDPE and the chips go everywhere even with the enclosure. My router operates much the same as yours with the tool height set after each tool change. When first built accuracy was on the order of 70micron, I suspect yours is much better. Some day I would like to build a new router with higher quality everything. It would be nice to see the photos of how you established tram and other assembly detail. The tooling plate looks solid and functional. Thanks, happy new year.
A little late Stefan, but happy new year! Absolutely can relate to what you're saying, I have at times no energy spending time on my hobbies! Watching what you share on this channel is a delight and helps me coping better with the circumstances. Thanks a bunch for the info and making me feel better! Kind regards, Donald
Hi Stefan, love your video's, take care for 2021 will I hope be a great year for us all. 👍
I always wondered what those tips were called. Excellent, excellent work as always. Really surprised standard 2flt endmills cut glass that easily- would never have guessed this. I'd have used diamond burrs. The precision blowgun tip thing has long been a need of mine for similar reasons. Well done!
in most cases grinding is probabably the better way of cutting glass :)
When you are ready, a walk through the new machine would be great.
Planned! (In fact I am already filming segments for it)
Quarz-Glasstäbe haben wir Mal mit PKD Platten gedreht, geht ganz gut. Im Vergleich zum einfachen Glass, der Quarzglass hat keine innere Spannungen, sehr stabil in der mechanische Bearbeitung
Best wishes for a Happy New Year. As always I appreciate you sharing your knowledge. I’ll be looking for Luer Lock fittings Monday. Cheers, Will