I'm pretty mind blown of all these machines, but as electronics engineer my jaw dropped when you pulled vector network analyzer. You're truly expert of all.
@dgelbart12 сағат бұрын
I used to be a respectable electronics engineer (telecom, signal processing) before I got into all this high-precision obsession.
@pytebyte3 күн бұрын
The oven is still on 😳 :) Impressive work space. Build my first CNC two years ago made out of wood. Had to move it into a basement which has a lot of moisture in the air. Having a proper space like this is definitely a goal to achieve.
@kylelaw72104 күн бұрын
You should really consider letting someone come in your shop and take detailed pictures and measurements of some of the things you have made so that people can more easily build their own. Also thanks for sharing. Your videos have become legendary.
@isaiahjanzen382213 күн бұрын
How does the carriage move? How difficult would it be to take these fundamentals and use them to make a mill?
@Karma-fp7ho19 күн бұрын
Absolutely wonderful.
@tc871424 күн бұрын
scoutcrafter said this video was great
@reverendtfg680223 күн бұрын
*It's not.*
@gutsngorrrr28 күн бұрын
HI Dan, It's been such a long time since you posted an videos on KZbin and i really enjoyed the work you did and even the workshop machinery walk throughs, it would be great to see what you've been up to in the last 2 years. Fingers crossed we get another video one day.
@user-my2me3db1nАй бұрын
The depth of your insights and the power of your delivery held me spellbound. I could have remained your eager audience indefinitely.
@Hawki007Ай бұрын
Can you tell me more about the cross sled and how that was made? Also, the T blocks of the bed; are the parallels just epoxied on? No bolts?
@dgelbartАй бұрын
The cross slide rides on two granite parallels, using air bearing similar to the main saddle. The tops of the T-bars are just glued on.
@S0K0N0MIАй бұрын
That workshop is every engineers wet dream. Self engineering your tools is impressive.
@137bob3dАй бұрын
7 21 24 that demo of the cylinder / piston and on-off air valve was an ingenious idea to aid understanding. it was just this month reading t. clancy's novel " the sum of all fears " that i became aware of machine tools using air bearings. and their ability to grind metal on the inside or outside surface to a mirror smooth finish. and that led to searching u-tube for a video on the a-b subject. a curiousity is how much of a layer of metal , millimeters or microns , an a-b lathe can remove at a time. my thought is too much will cause the rotating shaft to tilt off-center. and possibly lead to vibration. also curious if hi - precision microgram scales rest on some sort of an air cushion . to damp out ground vibrations. and that it is this air - damping engineering that makes them so costly
@nickporter9706Ай бұрын
Hello! Awesome shop! Is there a chance you might explain in detail the the weiler's chuck. I've been trying to figure it out and feel I can guess at some parts like how the stack of plates interface. The part that has me stumped is the drive mechanism for the adjustment. I can't imagine a way based on the location and angel of the adjustment from the video, at least not without gearing or similar to turn it 90° but the sensitivity of itbmakes me struggle to believe that's the case. Possible a wedge system?
@nickporter9706Ай бұрын
If you'd prefer not to say publicly I understand🤫 Maybe I could reach out another way
@dgelbartАй бұрын
The 4 jaw self-centering chuck is mounted to a lapped steel plate held between two other fixed steel plates. One of those steel plates is fixed to the spindle. The plate holding the chuck can be moved in two directions, X and Y. In each direction it is clamped between two opposing eccenters with a travel of about 1mm. Each eccenter is rotated by a worm gear. Each opposing pair of worm gears is coupled by a flexible shaft which is twisted to provide a high preload between the eccenters. The preload in each axis is about 1 to 2 tons. When you turn the X axis worm, it also turns the opposing worm by the same angle, but the preload is maintained by the twisted flexible shaft. In order to prevent cross-coupling between X and Y (X setting should not move when you change Y) the center plate is guided by linear roller bearing (ground into the plate) to be able to move in X and Y but not to rotate. All the parts of the chuck are made from A2 tool steel hardened to Rc60, ground and lapped. The huge preload is needed in order not to lose stiffness compared to a chuck mounted to the spindle. I even build such a chuck with motors inside that takes out the runout at a push of a button, but that one was even more complicated. To build such a chuck you need pretty good equipment and skills.
@nickporter9706Ай бұрын
@@dgelbart wow!😅😅 I feel better about having not figured it out on my own, there is alot going into it for sure. And in such a relatively small space. Fantastic! Would love to see the motorised version in action one day. I don't think I could make an approximation now, but what a goal to work towards
@nickporter9706Ай бұрын
@@dgelbart thankyou for sharing
@alelasantillan2 ай бұрын
Your work is amazing!
@Transmission4less3 ай бұрын
Very impressive. Optics to thermal imaging to Kodak to UBC. Great stories i read about you. Got me confused, spending time if you can afford around basic instruments and machines. if you can express your thoughts in advanced math with videos in KZbin so we can enjoy more from you
@marklagana27693 ай бұрын
are you saying you cast an LP using a silicone mold and it worked? I'm not saying it's impossible but i feel you would need such low viscocity silicone to flow into the grooves that the silicone would not be able to withstand the heat of thermoplastics. Thermoset resins maybe but the low viscocity silicone is so weak it wouldn't be very repeatable and something like polyurethane resin would probably shrink to much to be reliable. (i love your videos by the way you're my hero) i was lucky enough to work with some vintage vinyl presses, the EMI 1400 incase anyone is interested, EMI headquarters would use a special lathe to cut the grooves into either aluminum covered in acetate laquer, or copper. I believe the lathe cuts with sapphire. From this, industrial magic, not really sure but after some process negatives were created in Nickel using electroplating. These thin Nickel negatives were sent to us, protected in peelable plastic then a spray with compressed air (dust) and put onto the top and bottom stampers which were giant harderned steel flat surfaces (record shaped). The nickel would get bolted in the center and tightened around the circumference with a large threaded ring. PVC pellets would get vacuum sucked into a auger and extruded into a handful-sized plastic puck. The machine then pushed the oven dried paper labels into the top and bottom of the puck whilst also picking it up and placing it in the center between the two stampers. The stampers had low pressure steam running through internal pipes very hot, they would close together (i think also using steam power), and pause to allow the PVC to re-melt at this hotter temp, i think then the stampers closed together slowly to the final position and paused to allow the pvc to flow into the grooves. The steam in the stampers was replaced with cold water, they would open and the solidified record would be stuck to the bottom stamper, where a hot knife would slide in to the edge and the stamper would rotate, cutting the trim. It would pop up and a linear axis would transport it to a rotational axis that gave it a guided drop into the inner sleeve then another guided fall onto the stack. All the axes were pneumatics with compressed air, the 'end stop' was to smash into the end of the axis and remain smashed And before anyone corrects me, I know the nickel negatives were actually called stampers and the giant heavy flat surfaces they bolted to were called moulds but i hate that terminology
@dgelbart3 ай бұрын
The reason you can reproduce nanometer size details in silicone rubber of fairly high viscosity is the wetting and capillary action. Silicones in general have very low surface tension, so they "pull themselves" into the grooves. When you press records you don't have this mechanism to help you, as the polymer does not wet the nickel, and you have to force it in. Just think how this mechanism lifts water to the top of the tallest trees. Without surface energy release (wetting in a capillary) you would need an enormous pressure to pump the water to the top of the tree. Unfortunately, the subject of surface energy, critical to so many processes, is not taught in engineering school. You are not the only one who was surprised by this process.
@marklagana27693 ай бұрын
@@dgelbart thanks for the reply, fascinating.
@maigurens3 ай бұрын
I want one
@pipimontana3 ай бұрын
+++ never operate a drill press with gloves (close to the drill) +++
@ltsky3113 ай бұрын
@dgelbart Is that the bed of your air bearing lathe in the background, it looks like the granite T blocks you made for yours with those white bolts (would love to know what those are or where to find them. Id like to try my hand at making one myself. It would be awesome if you would do a more thorough breakdown and overview of your beautiful lathe.
@peterwiles12993 ай бұрын
Excellent presentation. Working at micron precision is probably the envy of tool makers. However, this is far from the finest precision in commercial use. The likes of ASML - Zeiss make components at the nanometer or better levels of precision on a routine basis.
@dgelbart3 ай бұрын
You are correct, parts are routinely made to the nanometer level, even without lapping. I fabricated nanometer-level optical parts myself. This video was about machine tools, and the machines shown are as accurate as you'll ever need in a machine shop. When you get into optical parts the machines and techniques are very different.
@Transmission4less3 ай бұрын
Will you share the mechanism used to achieve this accuracy in X direction , the encoders implemented, and the servo/stepper drivers ?
@dgelbart3 ай бұрын
The accuracy is based on a high grade (grade C0) ball screw with a preloaded nut. It is driven from a microstepped stepper motor which is geared down via a timing belt. The amount of gearing is selected by the pitch of the lead screw. To get 1um error on a 5mm pitch the angular error has to be 360 degree/5000=0.072 deg. A 200 steps/revolution stepper motor is accurate to 5% of a step, or 5% of 1.8 deg=0.09 deg (at no load) so a 2:1 reduction is sufficient. Note that a rotary encoder does not increase the accuracy. The leadscrew can be error-mapper as the basic accuracy of the lead screw is not quite 1um, or a linear encoder can be used. A high torque motor is selected to limit the angular errors caused by torque variations (what is known as "power angle"). For better performance you can use a servo-motor with a built-in encoder such as teknic.com/products/clearpath-brushless-dc-servo-motors/. The couplings between the ballscre nut and the slide are critical as they should not transmit any side or tilt forces. Best type of coupling is as used here: www.universal-thread.com/downloads/Universal-Lead-Screw-Assemblies-Catalog.pdf.
@Transmission4less3 ай бұрын
@@dgelbart Thank you so much for answering the parts that were taking my thoughts on how to achieve this accuracy without needing a high-precision glass absolute encoder. The info you provide about the high accuracy of the lead screw is very helpful over the ball screws.
@Transmission4less3 ай бұрын
kzbin.info/www/bejne/b4WulWOFjbGcn6s
@lubos46394 ай бұрын
I wish I could have worked for one of your companies Dan. Fantastic to have you as a master at least like this at a distance. Nothing can replace experience in the learning process, and I can only thank you for sharing this experience with all of us !
@adrianram55244 ай бұрын
I so love listening to this guy
@cjdougherty27284 ай бұрын
Out of curiosity,what is the square foot of your shop?
@dgelbart4 ай бұрын
1600 sq. ft.
@Lhyliphian4 ай бұрын
We would love to use this footage for our feature film! Do you have an email address we could refer to for a collaboration?
Actually tape worms works well for loosing weight. A lot of side effects might put You of slightly.
@niksto4 ай бұрын
The scientific community is not always nice. Ask Lize Meitner.
@dgelbart4 ай бұрын
Also ask Ted Maiman, who built the first working laser but was denied the Nobel prize because of the jealousy of the scientists who failed to build one.
@niksto4 ай бұрын
@@dgelbart Also Nobes testamente stated that the invention that had benefited the humanity most should have the prize. Later it have developed to be a prize for basic research. Not bad but its also nice to actually construct a gadget.
@thomapapa40064 ай бұрын
Hello, I just came across this channel and am amazed with your precision workshop and your knowledge. You remind me of Q from Q Branch in James Bond 007 Amazing!!! I will definately be checking out all your other videos. Best Regards Sir
@veteracastra73144 ай бұрын
There are now two much better (and much cheaper) ways to 3d print metal than sintering. You can cast, or print metal directly
@veteracastra73144 ай бұрын
kzbin.info/www/bejne/g6DbfGWejLNngqs
@veteracastra73144 ай бұрын
kzbin.info/www/bejne/a4GxiZVrmdWnqJo
@veteracastra73144 ай бұрын
kzbin.info/www/bejne/rqqch6WhjJ6eas0
@veteracastra73144 ай бұрын
kzbin.info/www/bejne/a4GxiZVrmdWnqJo
@veteracastra73144 ай бұрын
It is german but you can chooose english subtiteles.It says basicly you can use a normal fdm printer but you better use there patetend filament feed because the filament is too brittle.You can print carbide,ceramics, copper, titanium and stainless steel It must be sintered afterwards. For example: I will build a small but precise CNC lathe with this method and a housing made from carbide
@robertpeters94385 ай бұрын
I think a rotary deburring tool might work great for press tooling.
@Rollmops945 ай бұрын
Thank you Mr. Gelbart. You are the best teacher one could wish for!
@robertpeters94385 ай бұрын
WOULD IT WORK TO CALIBRATE WAYS ON A LATHE TO USE A LASER AND A FOLLOWER THAT RIDES THE WAYS AND GRINDS THEM TO FOLLOW THE LASER. OR WOULD IT WORK TO GRIND A REFERENCE SURFACE ON THE WAYS TO USE THROUGHOUT THE MACHINE'S LIFE FOR A FOLLOWER TO REGRIND THE WAYS?
@dgelbart5 ай бұрын
It is easier to grind the ways on a conventional surface grinder, the way they are made in first place.
@robertpeters94385 ай бұрын
This is the best series of videos anywhere on building anything!!!
@Rollmops945 ай бұрын
I wish you explained the aluminium-alloy casting a little more in depth. Obviously you can't suck the molten metal in using the vacuum. At least it seems dangerous to me. So would you pour it in and then degas the package afterwards? I really wonder if there are any benefits to the vacuum suction method anyways. I don't really want to drill a hole into my chamber to test it though.
@dgelbart5 ай бұрын
The vacuum suction method eliminates the large foaming happening in vacuum degassing, but is not essential. Molten metals, like aluminum, have very low viscosity so they can be vacuum degassed quickly without the suction feed method.
@dgelbart3 ай бұрын
When you cast low-melting point metals into silicone molds you just pour the metal in, no vacuum used. Molten metals have very low viscosity and high density, so all the air bubbles are pushed to the surface instantly.
@rolandjollivet385 ай бұрын
Hi Dan. When is your next video coming out? Every few months I check, but nothing for a while... But I see you are still active, replying to comments.
@dgelbart5 ай бұрын
This year I'm still busy, more videos next year.
@registerfor325 ай бұрын
@dgelbart Hi Dan. I am very interested in the cylinder and piston self-starting air bearing you demonstrated at @1:00. I would like to purchase one if possible. Please let me know if you can help. I am located in Northern California! Thanks so much for your helpful videos! I realize this video was almost 10 yrs ago, hopefully you can still help!
@dgelbart5 ай бұрын
They show up on Ebay from time to time
@registerfor325 ай бұрын
Is it possible purchase and get Qty 1 made directly from your shop? I am willing to pay for the parts and shipment@@dgelbart. I am looking to order more in the future as this would be for a prototype project I am working on. I am an inventor and engineer.
@dgelbart5 ай бұрын
Unfortunately not. @@registerfor32
@claytoncoward71165 ай бұрын
I am indeed impressed by your workshop. Moreover, Im awestruck by your knowledge. We should all take adopt your commitment to excellence. Thank you. Please continue with the videos as they are educational and inspirational.
@karansingh11545 ай бұрын
can i just use a big granite surface plate as bed?
@dgelbart5 ай бұрын
you need side guidance as well.
@karansingh11545 ай бұрын
@@dgelbart well I was thinking of taking a granite surface plate & mounting some linear rails on top of it for the carriage. I don't need maximum accuracy. Is this a decent idea?
@dgelbart5 ай бұрын
yes. @@karansingh1154
@karansingh11545 ай бұрын
@@dgelbart thank you
@nighthawk64685 ай бұрын
I am speechless, this is possibly the best personal shop I've ever seen, just the sheer precision thoughtfully placed into every object in there speaks magnitudes of you as a person! You are like the final evolution of the little demon sitting on my shoulder during every project, pleading with me to make my part just that much more precise and hunt down a few more zeros, however... you actually got there, everything in there allows you to actually get to that level of precision reliably. Hats off to you sir, for you have built the home shop that every engineer and machinist around the world has wet dreams about! Thanks for this fantastic tour Dan! I am now going to go sit in my shop and ponder a few of my life choices... and potentially invest in a bit more granite.
@dgelbart5 ай бұрын
Everything worthwhile starts with a dream.
@jjscalifornia50866 ай бұрын
You have a beautiful shop.
@bosten00186 ай бұрын
Hi Dan, greeting from Australia. I’m in the process of mounting my bench top mini mill in my small garage workshop. I’ve been overthinking bench tops as one does. Just wondering about your timber bench tops - what timber did you use? I’m assuming everything was thought about carefully, having the timber’s laminated running horizontally etc. Thanks in advance
@dgelbart6 ай бұрын
All benchtops are structural laminated beams that were rejected for structural reasons. The wood is Douglas fir. At the time rejected beams were cheaper than any other wood. If you can't get those in Australia I recommend two plywood sheets glued together to get a few cm thickness, covered with hardwood wood flooring, maple being the best.
@bosten00186 ай бұрын
@@dgelbart Thank you for the quick response! Appreciate your channel and knowledge.
@lakhvindersinghdhanjal98176 ай бұрын
I m interested what is price nd place
@williamogilvie69096 ай бұрын
A bit too slow for me. That's why I didn't attend UBC
@capncharlie78946 ай бұрын
18:33 4' atek bantam air brake with the Apocalypse Now sound effects.
@neojohn93356 ай бұрын
you are awesome Dan, you helped me learn with your videos. thank you
@quinto39696 ай бұрын
There seems to be a lot of Semitic backbiting in the sciences since time began! It's in their biblical propaganda. In their dna.
@mikedfgfj6 ай бұрын
What I am missing in this video a bit is what this workshop was built for? Looks like a zoo to me.
@dgelbart6 ай бұрын
The official reason is a workshop to develop new products and start companies based on these products (three companies already started and are shipping products). The real reason is that I love workshops. As Getty once said: For every action of man there are two reasons: a good reason and the true reason".
@mikedfgfj6 ай бұрын
@@dgelbart This makes perfect sense. Thank you.
@bin_chicken807 ай бұрын
This is very interesting Dan. Thanks for sharing it with us.
@aquilifergroup7 ай бұрын
Wow, thank you
@damienmiller7 ай бұрын
Thanks from another appreciative viewer of your videos. I hope you get the time to make more in the future. Apologies if this has been answered previously, but how did you establish trueness of the spindle axis with the ways? Did you bore the headstock using the ways, do some really finicky alignment or something else?
@dgelbart7 ай бұрын
By indicating a rotating mandrel using a capacitance gage moving with the carriage. The fact the mandrel was rotating eliminates the run-out error. The gage averages the run-out.