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Creative Engineering
Ukraine
เข้าร่วมเมื่อ 11 มิ.ย. 2023
Hello. I'm from Ukraine. On this channel there will be different experiments, as well as the construction of various machines and devices with an unusual approach. My English skills do not allow me to record videos with voice acting. But you can always ask questions in the comments.
Very simple low profile vise for CNC milling machine
If you need to process the upper plane of the part, then you need to fasten it from the sides
มุมมอง: 384
วีดีโอ
Homemade muffle furnace.
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I needed a muffle furnace for melting non-ferrous metals, mainly aluminum. I decided to make it myself.
Сan I make a homemade bldс motor? Part 2/
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In this video I will try to make a bldc motor using my cnc machine. In this series I will make a motor housing, windings and try to start it.
Сan I make a homemade bldс motor?
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In this video I will try to make a bldc motor using my cnc machine. In this series I will make a rotor with neodymium magnets and a stator from iron powder mixed with epoxy resin.
Wooden propeller on a CNC machine.
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In this video I will show you how to make a propeller from modeling to milling.
The Stirling engine and steam engine are practically made of garbage.
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I recently found these videos on an old hard drive. These models were made from scrap materials. Instead of pistons and cylinders, fabric bellows are used. Although such bellows do not seem reliable, they can withstand up to 5 bar of pressure. In addition, such engines do not leak steam and can operate at very low speeds.
Aerostatic bearing model made of wood.
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Some types of aerostatic bearings use porous materials, such as graphite, to ensure a uniform supply of air. I decided to try using the internal structure of wood to make a bearing shell.
I make the cutters myself. And I save my money.
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For surface processing, it is better to use cutters with replaceable inserts. But I have a high-speed spindle. Large diameter cutters are not suitable for me. I'll have to make the cutters myself.
DIY power bank as a gift.
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A short video on how to make a power bank with a wooden body.
How to convert a rotary axis to a turning axis.Part2 and finale.
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The stepper motor turned out to be weak. Let's try to use a BLDC motor.
How to convert a rotary axis to a turning axis.
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How to convert a rotary axis to a turning axis? You just need to place turning tools on the Z axis.
A short video about the operation of a homemade rotary axis.
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In this video we will try, for training, to mill a model of a turbine.
Homemade rotary axis.
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Video about making the fourth rotary axis. The second part.
Homemade rotary axis.
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Video about making the fourth rotary axis. First part.
How small can a CNC machine process?
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We will use two cutters to process the relief and see what results we achieve.
Homemade BLDC motor for blowing the cutting zone.
มุมมอง 84ปีที่แล้ว
Homemade BLDC motor for blowing the cutting zone.
Very awesome work bro... I have a question that What is the tool with the spindle which you used for machine metal inlays for guide way etc.
Spindle 2.2 kW, air cooling, 24000rpm. More suitable for wood and aluminum. Four-flute cutters 6 and 8 mm. Spindle speed - 4800 rpm. Feed 500-600mm/min.
Hello. Is it possible to share cad file of your cnc? Thanks
I didn't make a cad model. Too simple details. I just carried out calculations for deflection due to loads to find out the required thickness. The length of the rails and ball screws along all axes is 550 mm. The working stroke on all axes is 300 mm.
The world diy best channel, this all is organic and usable. Every u do on this channel is exactly what I want to do for my proyects.
Thanks
Wood is cheap. But graphite can is commonly used on air bearings.
Yes. I know about it. With a wooden liner, it's just an experiment.
@@CreativeEngineering-er4rk it might be interesting to turn wood into charcoal and then make an air bearing.
Pretty cool. I have the idea of converting two shock absorbers into an alpha stirling heat pump. 1) Empty the fluids. 2) Seal up the piston valves . 3) at the botom of each piston cylinder drill holes for tube with a regenerator in-between. 4) make 2 piston arms that fit the shock absorber's upper mounting joint and connect to a to two crank 90 degrees out of phase, and a flywheel 5) use a 1/2 hp electric motor to turn the flywheel. Observation: shock absorber piston may travel a good distance and that might mean a large crank throw and long piston arms. Hopfully the seals on the pistons are good enough for pressurizing the air inside the alpha stirling.
Good idea. But keep in mind that in shock absorbers the seal is made with a rubber ring, which is lubricated with oil. In a hot cylinder, the rubber sealing ring may melt. You may have to replace it with fluoroplastic.
@@CreativeEngineering-er4rkif ran as an engine the heat would be problematic as you point out. and Teflon might make a good seal. But I think the heat moved as a heat pump might be more tolerable.
An axial flux motor seems like a good fit for a centrifugal blower because of the impeller diameter. But using round coils does not. That's because while segments of coils perpendicular to the direction of motion contribute torque, segments of coils aligned more with the direction of motion contribute little to nothing to torque. Serpentine coils have better ratio of length of copper contributing to providing torque, and faulhaber coils are even better. If interested, one can view an axial flux faulhaber coil I made for the motor on my channel. Alternately, faulhaber coils are even better on radial flux motor. There's a company called thingap motors Inc that uses faulhaber coils on their radial flux stators. Google image search the terms thingap motors stators. They are high speed and have very high torque density. And, oddly for radial flux motors, they trade depth of motor for diameter to get torque, some what like axial flux motors do, just with a different flux direction. I think this is perfect for a centrifugal blower Ps less length of copper means less internal resistance and less internal heating, and less chance of melting plastic.
Thanks for the useful information.
I am building a CNC milling machine for a personal project, and I would know ur opinion about using a 4 bearings 2.2 kw spindle considering that the machine is gonna be used to mill mostly steel. I really hope u to answer❤. Great job!
I have exactly the same spindle. 2.2 kW, air cooled, 24000 rpm. Its problem is that it has low torque at low revs. When milling steel, I use 6 mm cutters for this spindle. Spindle speed 4800 rpm, feed 700-800mm/min, removal 0.2-0.3 mm. This is an easy mode that allows you to cut steel with such a spindle. But if you use trochoidal trajectories, high-speed milling and air blowing, you can increase the parameters by 3-4 times. I tried milling at 15000rpm, feed 2000mm/min and removal 0.3mm and everything worked fine. (In the video about homemade cutters there is a piece of the video at the beginning) If you want to mill only steel, then there are such spindles 2.2 kW at 12000 rpm, they have more torque.
Is the stator steel? it almost looks nonmetallic in the video
You can watch the first part. (Previous video on the channel). In general, the stator is made of a mixture of powdered iron 80% and epoxy resin 20%. Such a material does not conduct electric current and therefore can operate at high frequencies, but its saturation induction is less than that of electrical steel. Such a stator is very easy to make at home. This is better than no magnetic circuit at all.
Я рад, что к тебя дома есть токарный станок с фрезерной бошкой, фрезер с чпу, который грызет алюминий, но это не homemade блдс мотор
As much as it's en vogue to criticise the algorithm, I absolutely adore that it's constantly throwing me all of these fresh channels. Down here in the mines is where the real gold is. Good video my friend!
Thanks
Amazing!
I used to design servo motors at my job. You've got the basics right and I like your approach. I'd love to see you do more like this.
Thank you. I will still be finishing this engine. I think I used too thin magnets in the rotor. I want to remake the rotor.
Great❤
Thanks!
Thanks!
super awesome
That is such an amazing method for making a stator!!! Well done! If this motor works can you try to make a stepper motor as well please? That would be so cool!!
Thanks for the comment. It will be more difficult to make a stepper motor. There should be a lot of small teeth on the rotor and stator. And, to be honest, I’m not interested in making a stepper motor.
Я тоже делал миниатюры))
Interesting experiment!
oh yes, you can
Either you should use cast iron frame for reinforcing or not use any (except in the seats for linear rails ofcourse), because Mild steel tends to stretch if force is apllied. That's what i got conclusion till now for concrete machine basse, no Glass fibre is going to work nor carbon fibre strends due to adhesion problem with concret.
By the way, the propeller diameter is 50 cm, and the propeller thrust in the screwdriver is 1 kg.
What is the green plate on the back of the bldc ?
There are cooling holes on the engine. The engine is powerful, the load on it is small and it does not heat up. So I covered the holes with this green lid so that the chips wouldn't get in.
@@CreativeEngineering-er4rk I see. Thanks for the explanation 👍
Hi a love your build. Keep up the awesome work. What is that other machine that you used to mill steel flat? Is that some other CNC. It seems to handle steel well enough.
Hello. I processed the parts on my other machine. This is a large homemade CNC machine. I made it for woodworking. The working field is 2.7 by 1.7 meters. The X and Y axes are driven by a rack.
Awesome, I would love to see a video with more details on the construction of the bellows
That was a long time ago. These engines no longer exist. I took a piece of fabric. Then I spread silicone on it. Then I sewed the fabric into a sleeve and coated the seam with silicone. Three plywood disks were inserted inside the sleeve and compressed with clamps. The lower disk and middle disk had holes for gas passage. A connecting rod was attached to the upper disk. The advantage of the bellows is complete tightness and low energy losses.
Really loved it. Though about doing this, but haven't due to knowing concrete shrinks for many months, and even cracks on vibration. I was thinking on adding fiber reinforcement, but haven't yet. Do you have videos of it machining steel?
I waited six months before starting to process the concrete part. Now the machine is more than two years old. He's fine. I process steel in the first series about the rotary axis and in the video about homemade cutters.
Now all you got to do is convince the auto industry invest into supply air pressured bearings to do the same thing, And maybe we won't need oil changes ! Probably not, because of the pounding they take Good luck for your next project
Thanks for the comment! Such bearings are advantageous to use at low loads and high rotation speeds. Turbines, spindles. In a car engine, on the contrary, there are large loads, but low speeds.
I use those cheap braised carbide lathe cutters in a fly cutter all the time. After you’ve machined for awhile, they somehow are everywhere. I don’t think I’ve ever bought one new but every machinists toolbox I pick up used has a fistful in them. You can greatly improve their performance with a little work on the diamond stones
Cool idea to use wood!
Thanks
That's pretty good
Next job: a camera stand.
😂🤣👍
It's like a Chinese stone sphere on water, isn't it?
Yes. That's right. The principle is the same. If we use air, then it is an aerostatic bearing, if we use liquid, then it is a hydrostatic bearing. For a full-fledged radial bearing you need at least three such segments as in the video.
Wow nice work.
Thank you.
Be careful not to overload the spindle bearings... they were not meant for the extra cutting forces (or were they ?)... "no such thing as a free lunch ""!! 😂 😎👍☘️🍺
Thanks for your comment. These are small diameter cutters. 10mm and 17mm. And for cutters with one or two cutting edges, the feed is less. Therefore, the load on the machine mechanics and spindle bearings is small.
@@CreativeEngineering-er4rk😎👍☘🍺
If you "save money" doing this... you can "sell it for profit" also... looks like a lot of time used. But... "save a lot" = "make a lot".
Your music is well done but I'd rather hear machine noises during the machining ops.
Ok.
Good one, congrats
Thanks
The cutters look very good! Why buy when you can DIY? Right?😂
What controller that you use for this cnc? Is it mach3
Yes. Mach3.
EXCELENTE PROCESO , MIS RESPETOS PARA TI . FELICIDADES
Concrete bromlem is. It dry forever, and it shrinks
Before processing, the concrete parts were left to stand for six months and covered with paint. This machine is already three years old and there are no problems with it.
hello. i do printed pulley but with hex center. i think its better. great job.
hello. i have the same BLDC and i want to do the same. but i have not a power supply too much big. what power supply do you use? greetings, sorry my english
I have two 48V 10A power supplies in my machine. There is enough power for all stepper motors and the bldc motor.
@@CreativeEngineering-er4rk thanks you very much
Hello. What is your XYZ travel and what rails/guides (size and length) did you use?
Axial travel 300*300*300. Rails size 20. Rail length 550 mm.
I like what you are doing in your videos, thank you for sharing. I think even bad English and subtitles would go a long way to helping build your channel. Best to you and your efforts.
I also made mine with structural concrete 😊 Subscribed
Great! This is probably the most accessible material.
Ты что, за украину, дурачок?))
Cool, good job!
Thank you.
really nice, dude. Kudos on your build.
the concrete is very economic and it 's similar to epoxy ! very amazing idea!
Перейшов з іншого каналу, хотілось би почути рідну мову.
Oh great, another mutetuber.