happy new year Stefan! let's see more of the new machine!

Milling glass. A bit like watching a bomb being defused, yes?

Thanks Stefan, I was a bit surprised at the glass machining🤔😁👍

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.

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.

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.

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!

Next week: TIG welding glass. ;-)

Hope you're doing as well as can be, Stefan! Your content is always appreciated, no matter when it's published.

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!

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.

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!!!

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 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.

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 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.

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 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.

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!

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.

Hey Stefan, Thanks for helping out Alex with his CNC project. It was very nice of you!

Another shoptalk! Always a pleasure to see one of your videos!

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!

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.

The chip breaking abilities of those little carbide tools is most impressive. ;-)

Good on you for taking time for yourself; you owe us nothing. Appreciate yah!

First a video from Robin Renzetti, then one from you. An excellent start to 2021.

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

Tolles video! I can't believe that you can mill and drill glass with carbide. Amazing

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...

Nice to see you back Stefan. Condolences on your loss. Can’t wait to see more with the new machine.

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.

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.

Vacations are needed as well. Glad to here you took some time for you, we all do, love the vids

Happy New Year to you Stefan. Love your Shoptalks. Looking forward to more. Stay safe everyone.

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.

Dang bruddah! Haven't seen an upload from you in a while. Always learn something when I watch.

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.

Thanks for all last year’s awesome content, Stefan and am looking forward to the rest of this year. From my family to yours all the best. Play Safe From Elliot Lake Ontario Canada.

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.

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.

Very glad to see you back. Hope 2021 is better.

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. 👍👍

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

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!

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 KZfaq. 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).

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. 👍👍👍

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 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.

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.

Happy new year Stefan! Great content as usual, I always learn something new in your videos.

A good start to the new year is a new posting from Stefan. Thanks.

Thank you Stefan. Your videos are always fascinating and I always learn something. I never would have thought of machining glass with ordinary carbide endmills and drills. Happy New Year.

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

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.

Love the new machine and all of the information on glass work (amazing) Great video and thank you Stay safe!!!!!

Happy new year Stefan. I’m new to your channel but have enjoyed every video I have seen so far. Thank you very much for all of your insight, and videos.

Thank you for working on these videos, at all, in these sick times.

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.

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!

I always look forward to your videos! All the best in the new year to you and yours. It takes time, but it does improve. I've been there.

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.

All the best for the New Year toyou and your loved ones. may 2021 be a better year for one and all. Love all your content Stefan. Keep up the great work

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. 👍👍😎👍👍

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

Happy New Year Stefan. Thank you for sharing your time and many talents! All the Best... Chuck

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

Looking forward to seeing the new machine in action. Love the tee shirt.

Yes, I really appreciate the content.

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.

Happy New Year Sir. Your content is always appreciated. I love your curiosity and desire to learn and then share with us. Thank you!

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

Happy New year Stefan. Nice router, looking forward to seeing it in operation. So glass can be milled, who knew (other than NASA)! Great to see you back in the shop. Cheers, Jon

with many thanks and good wishes for the new year, Danke Stefan.

All interesting topics. Totally understand about wanting to get some good, solid work in without needing to worry about the camera, lighting, etc. Happy New Year to you, and let's hope for a better 2021!

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. 👍

Happy New Year Stefan. You always have interesting videos for all your watchers. Keep up the great work during the New Year.

It's good to see that you are doing well.Thanks for the tip on the Luer tips, I new that they exist but didn't know who made them.

Fantastic scenery at the end.

Happy New Year Stefan 😊 Thank you very much for all the wonderful content-Always interesting and educational, thank you 👍😊🎁

Thanks Stefan! As usual you make my day! Love you channel and content. Thanks and Happy New Year!

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

Great to see another video. The shop, the machine and even the T-shirt is a switch.

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

You’re a legend Stefan.

I'll be back -- that sounds ominous, in a German accent... I always greatly enjoy your videos, especially your gründlichkeit and depth of knowledge.

Very much enjoyed the video, have missed your uploads since the end of 2020. Glad to see you are doing well. Take care and stay safe. I will be watching for new material from you. Bob

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 🙈

Great video as usual Stefan, thank you for posting these informative and at times eye opening pieces. Happy 2021 !

Happy New Year Stefan! Wish you all the best in 2021.

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 :)

Good to see you again Stefan, and Happy New year. I understand you are going through some hardship, and I really hope things work out in the end. Life has a tendency to through surprises when least expected. 2020 has been a year to forget in many places of the world, maybe something good will come out of it eventually. Good luck, and thanks for taking the time to post a video again with good content. Best wishes.

Happy and prosperous New Year 2021. Thank you for sharing your knowledge.

Nice work on the glass. As someone that has "drilled aquarium" (to allow an overflow pipe though the side or bottom), that was very interesting. I used diamond-grit hole-saw and water for lube/cooling. Hope 2021 is a better year than 2020!

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.

"We won't centre punch it"... That was a German joke, wasn't it?

Happy new year, Stefan! I'm afraid that anything posted in a KZfaq 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. :)

Nice to see you again, Wir alle hoffen auf ein besseres 2021!

At some point I'm going to have to try working some glass. That was quite interesting. I never new the name of those Luer Taper connectors although I have used many of them over the years. Thanks for that bit of info! Finally, that is a beautiful road you were driving on. It makes me wish it snowed here.