Dbit grinder modifications - Part 1
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- Опубліковано 12 вер 2024
- Robin Renzetti - Deckel Clone Modifications:
• DECKEL CLONE MODIFICAT...
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nice work Stefan!
(except for 29:00, let's hope it still runs when you're done)
looking forward to part 2!
Hi Tony , well said !☆☆☆☆☆
I love your video's also very alot.
And you incorperating Stefan , into your video´s is geniusly funny !!
But also showing alot of respect for him ♡☆..
Is very nice to see .
Greets from the Netherlands
Johny geerts
Very nicely done Stefan! Thanks for the kind words on the design. Waiting for part 2.
ATB Robin
I really enjoy your long form videos too Robin. I have a harder time organizing the IG stuff but all of it is so much appreciated. You and Stefan are kindred spirits. Thanks for sharing your knowledge I use it every day in the machine shop.
Thank you Robin! Waiting for your part 2 video on it too ;-)
@@StefanGotteswinter no paint shot, you tease! :-p . *orders RAL6011*
Really interesting and entertaining! 👍
I work with epoxy and can give you a couple of tips;
1. Always *decant* the epoxy; mix for half the time in container 1, then pour/scrape into clean container 2 for the second half of fhe mixing time. This guarantees no unmixed components get into the final result.
2. Buy some 10ml and 20ml nurse syringes from the pharmacist. The type that dont have rubber plunger but are entirely plastic. The larger syringes have large nozzles and can suck up and inject epoxy and is a good way to get the moglice into a hole without air.
3. Never trust mold release! Rub it into the sliding parts multiple times, the rubbing/ burnishing is as important as the layer of release agent. Also, you should have rotated the main shaft once the epoxy set into a solid, but long before it reached full hardness. It becomes a solid long before its adhesive properties become full strength, so you loosen it once solid but before it is totally stuck! 😁
Love the long videos Stefan. More time for you to share the attention to details which is why we watch
It's refreshing to hear such an expert giving credit to someone they admire so much! Both of you hold the high ground in your fields! I would love to see you both work on a joint project one day.
Thank you!
I have watched the video of Robin making this modification (multiple times). I enjoyed this and did not feel it was redundant because you both give different perspectives. It is also nice to watch skilled people solve problems. Thanks for sharing!
I hope you do a part II to see the rest of the build and painting. I am so excited about seeing your shop videos again.
Ah, the very best. Thanks for this fantastic video Stefan, I love these machine rebuild/improvement videos.
58:40 "Hehe!" Machinist joy coming out in its purest, unfiltered form. It's always a treat to see the amazing care and precision you put into your work. Thank you!
Thanks for sharing your knowledge and skills Stefan. I've learn a lot of the finer details of machining and tool making from your videos.
Am currently re-watching the videos from the begining for the third time and it's just wonderful how much you can learn every time. Fantastic channel
Mostly here to give the algo a bump, These are my favorite Stefan vids. Problem/solution and, making tools so much better than they were. You sir may be second to Robin but, I think it is a very close second. Truth be known, you are my favorite high precision tool maker. Thank you for taking the time to educate us.
Beautiful work Stefan. Love the details and reasoning process. Also love the thought process which is simplify wherever possible so form follows function.
Stefan….
Watching you work is an inspiration. Thank you for putting in the humungous amount of work to make these very detailed, and VERY entertaining vids.
You and Robin are like ‘book ends’ to the body of ‘precision’.
Thank you,
Robert
Sydney, Australia.
Awesome.. A while back I was wondering if you would make more mods to your d-bit grinder.. Thanks for sharing with us Stefan! Take care, hope you have a great week..
I always love the sound of glee in your voice accompanying a job well done.
Und wenn der Dbit Grinder fertig ist, ist sein Wert ungefähr 30000 Euro, abhängig von dem Stundetarif 😋 Schönes Projekt in Präzision! Danke für das lange Video!
Und ich hab dabei unbezahlbar viel gelernt ;)
Freut mich wenns gefallen hat.
So well engineered and thought through. It's always tough to go down to my own shop and fight my humongous tolerances, you are a very good role model. Thanks for sharing man. Cheers from Sweden.
1.22 excessive play? I really like your videos and your demand of high accuracy (must be a german thing) i sometimes work as a mecanic with a german supervisor when rebuilding metal manufacturing machines (GROB, Burkhart+Weber Liebherr etc) and i really admire their strive for precision. The biggest problem was to find the right tecnical terms in a language in english so it was a wierd miscung of english swedish and german. But it worked out good anyway
"It is still good to do as good a job as we can"
That little statement shows your nationality even more than your accent does.
Loved watching over your shoulder, thanks!
I very much enjoyed this video.
Mr. Renzetti may have all the credit but you did a beautiful job of filming the process. That in itself is a lot of effort.
Beautiful work, as always.
Thank you.
It's looking great Stefan, hoping for a part 2 to see the final push. 👍👍
That Moglice is really cool, I had no idea stuff like that existed. I always learn something new from your videos, so thank you!
Absolutely brilliant design and execution of the repair! You and Robin are really exceptional
Thank you!
I can not say I have watched all of your video's, and I have watched many. I play blacksmith on the weekends and still always amazed at what and how you do your craft.
Keep doing you! And thank you.
You anticipate my questions with effectiveness. Thanks for this -- both videos together make a complete set!
I enjoy watching your videos , knowing I'll never reach your level of precision.
Finally someone who isn’t scared to tap a hole with a handheld drill motor. I’ve done it many times with no problems. UA-cam had me believing this process always had to be fixtured and used with a tap follower.
Stefan, your channel is a pure joy to watch, Thank you so very much for all that you do !
Wow; just wow! That stupendous video was over an hour long but it flew by in what seemed like a few minutes. Love the thought process for the lead screw and sleeved shaft and it’s fixing method to the extended shaft. Then it got better. Brilliant 🤩
When you pulled out the skewer for the Loctite 648, I really felt that haha. Also I had never heard of the Moglice slideway epoxy before, I was quite surprised at how smooth the bearing surface came out. Cheers and thanks Stefan!
Excellent as always. That Moglice has an amazing finish. Love when you take a tool and modify it Stefan, you take what seems at first to be some major, overwhelming modifications, and break it down into simple steps and most of us could perform, albeit at a much higher standard ;) love the work as always, thank you for showing us all!
I absolutely love these modifications Stefan. Thank you for sharing your awesome work!
I don't think I'm ready to modify my new D bit grinder, must learn how to use it first. However, I really appreciate the rationale and detail you and Robin (and you, too, Tony!) provide. I'll be back!
BTW, That epoxy bearing stuff looks interesting. I think it's an 100% solids epoxy pulled towards rigidity and toughness with a graphite filler; the modern Babbitt.
I mixed a lot of epoxy in a prior life as a boat builder. When adding the hardener try to get proportions exact, if anything slight the hardener, too much hardener tends to yield a weaker, and stickier (i.e. will lift some mold releases, causing issues) result, especially with small volumes.
This is the way I mixed it using a nice sized, squared tip stirring stick:
25 full stirs clockwise
insure that the corners are involved with a couple of swings along the bottom edge
25 full stirs counterclockwise
Again the bottom edge, clockwise
25 full stirs clockwise
If you need to add fillers, do it now, and stir 25 to 50 more, depending on the filler.
Keep batch size down if possible, too big a batch left too long will smoke and may catch fire. Ask me about Olaf...
If kept cool and dry epoxy has pretty long shelf life.
I thought I heard you mention a syringe, a good idea if the tip is large enough to easily pass a viscous fluid.
Great to see you using gloves, which you might have dipped in the epoxy and smeared in the bearing hole...
Don't count on the release agent being perfect, two coats burnished is usually enough, though.
Tape off everything you can, despite the mold release.
Enjoyed…Excellent video production/discussion/demonstration/build….I just purchased a Dbit grinder and starting my education of using the machine
Thank you Stefan!
It is always a privilege to watch you work. Your thought processes are admirable.
Thanks again! :)
I have had excellent success with 3D printing laps. Very handy to just quickly print one, and makes it easy to keep laps clean as you move to finer and finer grits. It’s also easy to control flex and add slurry channels.
Interesting point; what material do you print them out of?
So enjoyable to watch you work as you narrate your thought processes. Very educational and at times highly entertaining too. Fabulous project, looking forward to seeing it progress to completion. 👏👏👍😀
I am a simple man, I see a Stefan Gotteswinter video; I smash the like button.
Yess happy seeying a new SGW video .
Always a piece of video and mechanical beauty to see!☆☆☆☆☆
Since watching Robin's video about his D bit grinder upgrade and watching how much you use yours, I finally purchased one but have not done any mods to it yet. After watching this fine video I know why I have been waiting to upgrade my grinder. f I do all of the upgrades at once I won't suffer from upgrade envy. Thanks for adding more items to my queued workload of shop upgrade projects. I can't die before I finish my list so essentially I am immortal.
God put me on earth to do a few things-I am so far behind I will never die!
Sehr schöne Arbeit! Das hat mir ausgesprochen gut gefallen und ich habe noch was dazugelernt! - Danke! 👍👍👍
10:18...lol my dad named the sandpaper drawer in his old work truck after a particularly abrasive co-worker. "The DJ memorial abrasives drawer"
The shot of the cast surface was eyecandy.
This was the best hour on UA-cam so far. Looking forward to part 2!
hello from spain stefan..very good job..thanks for your time
Nice job, as always. I learn something new every time I watch one of your videos.
Absoluter Genuss deine langen Videos, ich freue mich jedesmal wenn ein solches von Dir gepostet wird.
Ich kenne diese Tage nur zu gut, wenn jede Schraube erst kurz von den Fingerspitzen berührt werden darf, sich dann aber sofort anders entscheidet und definitiv den Weg zum Boden findet. Egal was man versucht! Ois Guade nach Oberbayern aus Sydney!
More videos please! Thank you! It was excellent!
51:12 The technical term for this is the martensite start temperature, in case you want to sound fancy in the future. Nice demonstration of decarburisation when austenitising in an uncontrolled atmosphere.
Thank you very much indeed for documenting the how and the why. I will take this as necessary improvements to the imported clone I might be able to afford some time in the future.
I would always recommend to use the machines as they are from factory and then decide what you need for your purposes.
@@StefanGotteswinter Wise words of course, and fortunately I have time to think it through before I go off Mach 3 no guidance.
Precision, Precision, Precision-love it. Greetings from Tasmania Australia 👍😁🇦🇺🦘
Awesome video Stefan, thanks for sharing! I love that loctite retaining compound, and the new grinder sure is slick!
OK Stefan, I need 2 of these by Friday!
After actualy seeying the video .
I like to point out , that the one bearing that was not filled completly.
Probably was an airpocket.
As most moldings also need a bleed channel , to push the air out.
Preferably at the 12 o clock position .
Greetings from the Netherlands
Johny geerts
@34:30 half expecting Stefan to pull out a kitchen sink at this point!
I learn so much from these rebuilding & modification videos. Thank you so much!
The hour went by way to fast. Really enjoyed the demonstrated work on this project. Thanks for the look!
Loosativity! Sehr geil! Weeblewobble sagt AvE!
Ditto, loved it, to the point!
Fascinating stuff, Stefan. Great video.
Hey Stefan are you going to do a video on your new surface grinder?? It looks really cool!
I dont think I will do a seperate video on the grinder - I have shown most details in the last shoptalk video.
@@StefanGotteswinter Ah ok I didn't see that. I will watch now. Thanks!
I love watching the crème de la crème of precision machining.
Sehr schöne Arbeit, Stefan. Beim Austreiben der Welle aus dem Gehäuse hatte ich schon eine Blutdruckspitze, zum Glück gings noch glatt. TOP.
THANK YOU STEFAN, REALY LIKE THE MOD'S . LOOKING FORWARD TO SEE IN USE.. REGARDS RICHARD.
Another interesting and informative video. Thanks. The life of a bearing on a grinding machine must be hard. There are no seals to keep the grit out?
You, Sir, just made me buy a second D-bit grinder. One to use while the second one gets Renzetti-Gotteswinter'ed :) PS, I sent you a message on Facebook a while back about something, just checking you saw it...
OK, now I am ashamed of my minor tear down and cleaning of a Alexander 2CGD. I worked 23 years doing CNC R&D for orthopedics and I am impressed with your work, well done. I got this grinder just for something to putz with at home all well knowing I didn't have the tooling to do it right so all I did was clean it up a bit. I dont even have a use for it. It was hardly even used as all axis are still tight. Would you have any interest in this unit or can you point me in a direction of a buyer?
Excellent video Stefan! Pleasure to watch! Now I want to buy this debut grinder just to rebuild it... 😅
Arbeit vom Feinsten, Danke fürs zeigen, wie alle Videos von Dir
Very good video. Excellent explanation of all the why's and how's.
Offsets are a great tool, 321 blocks or just a few cm , its knowing how to use them. just made a radius tool for m300, , to make ends on boxwood tools for beating lead sheet. tools for tools. . love the work.
Awesome stuff man. I needed this to get my mind functioning again.
I thought for sure you were going to modify the zerk fitting to accept a syringe and then pump it in there.
I considered it - Or making an M8x1 adapter that fits a syringe. And then my lazyness prevailed.
@@StefanGotteswinter Yeah. You so lazy. 🤣
Fantastic job. Beautiful. Thanks!
Thanks Stefan - appreciate the content... miss the old intro music though...
Superb work and narration as always.
Another interesting and informative video. Thanks. The environment must be extreme for any sort of bearings.
long time no see!! super excited to watch your new video!
Amazing amount of information.Thank you.
Ral 6011 ftw! Every other color for this machine would be blasphemy!
Love your new grinder!
I love the shop crocs. 🤟
best shoes for light duty shop work. I have regular steel toed shoes if i do heavy work or machine moving.
Great to see a video. Does the swivel part that you show near the end of the video have some sort of seal to keep out grinding dust because when you took it apart it sure looked like a lot came out?
Beautiful work as always. Thank you for sharing.
Loosetivity is now in my dialect. Completely legitimate linguistic development sir😉
You mention there is 30 microns of play on the left end and less on the right end. Wondering how you made sure the shaft was concentric as you cast the bearing surface. With that play on each side, couldn’t it end up at an angle relative to the axis of grinding? Thanks for your videos and sharing your knowledge and experience!
I didnt do anything special to ensure that. Beeing mildly off axis is not a issue for this kind of kinematic.
Moglice Epoxy. A modern day version of babbitt!
Beautiful, way better than the factory original (naturally, it's you.) I'm sort of surprised that you continue with this machine given all the rest of the sophisticated equipment you have acquired.
Thanks for your video, I learnt a lot again.👍👍 But I am interested your purpose why you started to restore this grinder, because you have a Deckel S1, and a surface grinder. With these two grinder you can grind everything. Is it easyer to use, or faster the set up on the D bit grinder?
Thanks!
Yes - The reason is quickness of setups. The DBit grinder is the fastest of the machines for quick lathe-formtools.
Nice job, should look great in RAL 6011 My favourite Reseda Green as favoured by Deckel :)
Nicely done very impressive work
Very very neat project. Well done and thanks!
Beautiful work Stefan👍
Made my week, some Renzetti-inspired Gotteswinter, like listening to Liszt versions of Paganini tunes. P.s. was that the first time we've seen your new swanky grinder in action? Looks very smart. Oh, and I can't imagine how nervous you were trying to free up the shaft from the epoxy bearing-liner stuff! That crack noise... "what was that!?!?"
Yes, that is the first on-video action of the grinder :-D
And it beeing a surfacegrinder, I am doing of course round work.
The freeing of the shaft was nervewrecking. I knew what to expect, but it was worse :D
Outstanding Stefan.
That's a nice *HNNNNGGGG* sliding fit.
wonderful and entertaining video !... thankyou Stefan!
Bei ca. 50:20 konnte ich mir das Grinsen nicht verkneifen, wie der x-y-z Controller (?) an seinen Anschlußdrähten von der Maschine baumelt, umringt von Hochpräzisionsarbeit. I Love it ! 🙊🙈
Danke für all die spannenden Videos !
:D Das ist ein Yuri-Touch DRO, das ich zum testen da dran hängen hab, sieht unmöglich aus, aber bis ich sicher bin, dass ichs mag, lass ichs einfach so an den Strippen Hängen :D
@@StefanGotteswinter Oh, voll cool.. Ist sogar ein DIY Controller ! .. auf Thingyverse gibts verschiedene Gehäuse dafür zum selberdrucken, ich könnt mir aber auch ein stücl Delron auf der CNC vorstellen .. der controller der sich sein eigenes Gehäuse fräst ;)
I have an old Induma milling machine. The Y screw and handle are way off to the side of the Center line of the saddle. That creates a lot of stress on the brass nut and screw. It wore out the nut and screw almost to the point you could pull the screw out. I replaced the lead screw but couldn’t get brass/bronze stock big enough to remake the nut at the time (thanks Covid). So I mogliced the nut to the new lead screw to form new threads. My take-away from the experience, injecting the moglice with a syringe was SUUUUPER difficult. Went through a number of syringes. Maybe too much hardener? Too small of syringe, who knows. But there’s a pile of moglice still on my shop floor where I spilled most of it… but, the job worked. The Y axis on that mill turns fine. I just need to do a better job scraping the dovetails because the Y screw still jacks the table back and forth….
And ya, trying to break the screw loose after the moglice hardened was nerve raking.
Moral of the story - it worked, but I don’t want to do it again.
Another kit project that is found in need of a finicky machinist to solve the inherent problems. You are having too much fun doing this, and you know that it will last forever, so the paint must be as close to perfection as the enginerding and machining. Now the major question is….grey? Green? Red was already used so that would be too easy. White would be perfect! Any debris immediately observed! Can we have a Group Vote? Great video as expected, the only way you operate.
Haha, it will just be a rattlecan paintjob :D
Ral6011 green, like my lathe and the tool&cutter grinder.
Sadly I can only like this once! Maybe try 3d printing some TPU grit guards / seals!
Or like Stefan says it normally: „I‘ve done no big modifications to it“ 😂