- Видео 48
- Просмотров 771 292
Chris Long
Великобритания
Добавлен 11 дек 2010
Videos about making things - Sketchup, woodwork, maybe some Arduino/electronics in the future. I have three children so you can expect to see a lot of kids' toys being made and/or repaired.
A sphere trapped in a cube #3dprinting #onshape #cad #printables
A fun 3D-printed toy where the truncated sphere in the middle spins feely inside the cube cage. Just a quick design-and-print project as I'm learning my way around the processes.
You can get the STL files from Printables: www.printables.com/model/1112990-captive-sphere
And the OnShape model is here: cad.onshape.com/documents/0ce5679b54a54d67e927282a/w/b93025279a20b0d5bbda6f98/e/633744981db981c6dc3eb224
You can get the STL files from Printables: www.printables.com/model/1112990-captive-sphere
And the OnShape model is here: cad.onshape.com/documents/0ce5679b54a54d67e927282a/w/b93025279a20b0d5bbda6f98/e/633744981db981c6dc3eb224
Просмотров: 39
Видео
Hole Measuring Gauges for Digital Calipers
Просмотров 4,8 тыс.14 дней назад
A quick demo of some hole-measuring jaw extensions I made for my digital calipers. I've been learning CAD and needed to get accurate measurements of the distances between the hole centres on a small circuit board, and came up with this idea to make it easier, which also gave me another project to practice my CAD skills on. Let me know what you think - have I re-invented the wheel? The STL file ...
Magnetic Corn Flakes
Просмотров 113Месяц назад
Corn flakes, like many breakfast cereals, are 'fortified with iron'. This video shows how you can extract some of that iron using a magnet. Other breakfast cereal brands are available #notsponsored
Diverging sun rays do not mean the Sun must be close #science #globe #flatearth
Просмотров 125Месяц назад
A short video you can use to educate anyone who claims that diverging 'crepuscular' rays from the Sun prove that the Sun must be close to Earth. In fact even perfectly parallel rays will appear to diverge, as anyone who has seen railway tracks should already know, but this is a nice simple demonstration using Blender, the free 3D modelling app.
An easy way to find major scales on a piano keyboard
Просмотров 319Месяц назад
If you've always wonderd why piano keyboards have some white notes and some black notes, and why they're laid out the way they are, then maybe this video will help to make everything a little bit clearer. These are just the idle musings of a computer nerd with an interest in music, I'm not a musician in any sense of the word. Music is extremely mathematical, though, which I guess is why it appe...
3D Printing from Below #3dprinting
Просмотров 1786 месяцев назад
Messing about with my 3D printer... what does the extrusion process look like from underneath? Printing on to glass (actually clear acrylic) to find out...
The best 3D printer I've ever used
Просмотров 4687 месяцев назад
My experiences with the Creality Ender-3 S1 Plus 3D printer - the first and therefore the best 3D printer I've ever used. This is more a review of my experiences getting started in 3D printing than a review of the printer itself.
Weird POV Effect - trying out OKLab, hidden line removal, blurring and IRL
Просмотров 4,2 тыс.8 месяцев назад
More explorations of the weird POV effect (which really needs a better name) prompted by comments on earlier videos. This one looks at: - how different colours affect the effect if the lightness is held constant according to the OKLab colour model, - how hidden line removal affects the ease of seeing complex 3D shapes, - how blurring the image affects the effect, - and whether the effect still ...
More Weird POV Effect Experiments
Просмотров 38 тыс.9 месяцев назад
More experiments inspired by comments on earlier videos, this time looking at: - the effect of mixing pure red, green, blue and white with each other - how the complexity of the wire-frame shape affects the effect - how the maths involved in rotating the shape can lead to it erasing itself. You can download the software and play with it yourself - visit my GitHub at github.com/ChrisBLong/POV an...
Weird POV Effect - Follow Up
Просмотров 38 тыс.9 месяцев назад
A much longer video digging in to some of the more popular comments on the original Weird POV Effect video, covering dinosaur vision, migraines, various screen resolutions, text and colour effects. There's also a ten-minute demo of how the XOR operation works with colours in computer graphics systems. See the playlist for the earlier videos in this series. The custom-written/hacked-together sof...
Bad Apple!! but it's not there when you pause, version 2 #badapple
Просмотров 4,8 тыс.10 месяцев назад
My version of Bad Apple based on the 'weird POV effect' technique. I've made two versions, this one is based on the full black-and-white frames of the Bad Apple original, which results in severe strobing - DO NOT WATCH if you are photosensitive. Although you can clearly see the animation when the video is playing, when you pause you just see random(-ish) noise. How it's done: starting with a bl...
Bad Apple!! but it disappears when you pause, version 1 #badapple
Просмотров 6 тыс.10 месяцев назад
Bad Apple!! but it disappears when you pause, version 1 #badapple
Weird POV effect 2 - What's my password?
Просмотров 48 тыс.10 месяцев назад
Weird POV effect 2 - What's my password?
Seiko Kinetic Capacitor/Battery Swap
Просмотров 1,7 тыс.Год назад
Seiko Kinetic Capacitor/Battery Swap
A look inside an £85 Honeywell HR92 wireless radiator valve.
Просмотров 1,3 тыс.Год назад
A look inside an £85 Honeywell HR92 wireless radiator valve.
Seiko Dancing Hands repair and demo
Просмотров 4,4 тыс.3 года назад
Seiko Dancing Hands repair and demo
Lava Lamp - How It Works and Time Lapse
Просмотров 2,3 тыс.6 лет назад
Lava Lamp - How It Works and Time Lapse
Thank you for the information
for some reason looking at this stuff relaxes me greatly, it sooo cool, i could watch this for a long time, it even gives me tingles lol so weird
It would be great if you could post an STL or STEP file to Thingiverse or Printables.
@kenwhite6739 The STL is now available from Printables, link in the description.
@ChrisBLong Excellent! Thanks, Chris!
Brilliant mate! As other haves suggested you can do this without these, however this method only needs 1 measurement. Making 2 measures for one distance introduces more error? Maybe a scientist can run an experiment on a couple thousand measurements on various samples and see which is more accurate on average.
Merci !! Tres bonne idée !!! merci du partage !!
Can you host the STL somewhere? I've not had any luck trying to get it from onshape. I agree with Printables or MakerWorld. Or even Thingiverse. Whereever is fine. :)
The funny thing is that calipers are used to measure dimensions and brake cars. Just like spring is a thing to squeeze together and at the same time a season of the year.
This is a cool idea. It's nice to have different methods to achieve the same outcome because it gives us the option to pick the best method for the situation. It might make sense to upload the STL to Printables and MakerWorld.
Thanks for the feedback! The STL is now available from Printables, link in the description.
How do I print a pair of these from that onshape link?
You should be able to right click on 'Part 1' in the parts list at the bottom left of the screen, then choose 'Export...' to save it as an STL file. Then run that through your normal slicing software etc. just print two of the exact same part, the jaws on your calipers should be symmetrical. I found printing them with the points facing up worked best for me.
@@ChrisBLong In the parts list in the bottom left I see one part "Caliper hole gauge" and if I right click it, the options are Hide, Isolate, Make transparent and Zoom to selection.
@@AHaensel Same, doesn't work for me either.
@@AHaensel ok, I didn't realise the 'View' feature in OnShape removes 'Export'. You'd have to copy the document to your own OnShape account first, in that case. I'll upload an STL somewhere as soon as I get a chance, weekends are busy 😉
@AHaensel The STL is now available from Printables, link in the description.
gimick
Couple of questions here. Won't the attachment introduce a measuring error? How repeatable is attaching the device to the extend of getting the same measurement twice? Is the 3d printed attachment better calibrated than the caliper itself, from the point of view of the yaws? I understand the idea, but fail to get why it'd be better than just using the regular technic of measuring one of the holes and zeroing the calibers on that. From my lab and machine shop experience, adding attachments to a measuring device just introduces additional measuring errors.
I guess they must be an additional source of error, but it's small and quantifiable. Adding and removing these gadgets, even swapping side-to-side, the calipers always read 7.31mm +/- 0.01mm each time, so their location on the jaws is quite repeatable (you'll note the 'hump' on the inside face of the socket to ensure a single point of contact on that side). That's certainly good enough for me as a 3D printing hobbyist; this was just a fun video to demo an idea, I'm not suggesting that these gadgets should be adopted by high-precision machinists, and certainly not in 3D printed form. It's not necessarily better that the regular technique in terms of precision; it cuts out one step, if you already know or don't need to know the diameter of the holes, and measuring the holes is quite fiddly and subject to a small error depending on the radius of the 'sharp' edge of the caliper jaw relative to the radius of the hole. Thanks for taking the time to comment, I appreciate the feedback.
Measure one hole and zero on it. Measure distance. Done.
Or with the gadgets, it's just 'Measure distance. Done.' That's one step quicker :-) I understand there are ways to measure the distance without needing extra gadgets, I specifically talk about that in the video.
Measure the smallest distance (inner edge) and add the hole diameter, or the outer edge and subtract the hole diameter. The center of the hole is the radius, as you have two holes you have two times the radious, so the diameter. You need that hole diameter anyway ¯\_(ツ)_/¯
Love it - genius idea! Esp as I hate digital calipers (battery always fails when I need them most). Measuring the dia of a small hole is also notoriously inaccurate anyway. So I (personally) love it - and the cones are very clever - thanks for showing it!
Very Good!
ok. old dude here. Pay attention. Measure the diameter of 1 hole, while still in that hole and at that diameter, RESET to zero. pull out the caliper and measure between the 2 holes. What you see is the distance between the holes. Don't forget to reset to zero with the calipers closed. And I should pay more attention to the comments 😀
...., measure near Edge to near Edge. If the holes are the same size, then that's how far apart the centers are.
You mean, left edge to left edge? The trouble with that is that there's nothing for one of the jaws to reference against.
Just learn to use your tools. If you discover the Zero function you will notice, that there is no need for inacurate printed parts.
Sorry, but it is really easy to get an accurate measurement of hole centres using a caliper. Just use outward facing tips to get the diameter of one of the holes, pull the caliper out of the hole, press INC/ZERO to reset the caliper to 0.00mm (without moving its position), and then just measure between the outer-most edge of one of the holes to the outer-most edage of the other hole (again using the ouward facing tips). Now your caliper shows you a very accurate, repeatable, mesurement between the centers. Don't forget to reset your calipers back to normal afterwards.
I have tried this method, and it definitely works, but I found it a bit fiddly to do and a bit less repeatable than the jaw extensions. I think there's a skill to using the calipers accurately that you probably have and I don't 🙂
@@ChrisBLong No more skill needed than using your jaws. The method mentioned above is still more accurate and repeatable. Not saying your method sucks, its another solution to the same problem. While is good, i just want others reading to know that is less effective on the use case above. Now, if you were measuring holes deep inside an assemble that couldn't be reached with the caliper jaws, by all means this will be better for sure.
I like the option of being able to use both methods. So I think this is neat.
Great suggestion - but requires digital calipers. I have my dad's older analogue ones, so I'm doing the double measure of hole diameter and inner distance - and while the error is minimal, it can get more cumbersome if the holes are different diameters.
this is the correct use of the tool.
Really cool idea. Thanks for sharing.
niiiiiiiiiiiiiiiiiiiiiice!
I measure the biggest distance first, then rotate the calipers upside down and measure the smallest distance. The average = center distance …
Clever! That would also give you the diameter of the holes. I'll try it. Thanks for the tip!
If the holes are same size as in this example, just measure smallest distance and add 1 hole diameter = center to center. You can also measure biggest distance and minus 1 hole diameter = also center to center. But yes, these jaw extensions are excellent idea, especially if you have lots of measurements to do.
At risk of sounding a bit dumb, is the cad model somehow locked against downloading? The context menu on the part only allows hide, isolate, zoom and make transparent, but I find it really weird to have such a restriction :|
If you view my copy of the model, it's locked - you can't edit it or change anything. If you have an OnShape account, you can copy it to your own account and then you'll have full edit access on the copy.
I think this is already a commercial product? Also what's the distance between the zero point where the caliper jaws are together and the centers of the hole guides? Did you build that into the construction?
Yes, the extensions are designed so that the caliper jaw is exactly* in line with the central axis of the cone that fits in to the hole. The cone self-centres in any size hole (from 1mm up to about 6mm) and then you know that the caliper jaw is exactly* above the centre of the hole (*within the accuracy limits of a 3D printed part, at least).
Nice!
Thank you!
I think you’d love the Positron printer 😀
If you can afford it try getting a prusa or Bambu labs. Prusa just came out with there new core one which is actually a good price.
Just a quick comment - there is a TSB on these watches about how to tighten the mode selector on the shaft it mounts on. Apparently this is a common issue with them if they are mishandled a bit - enough so that Seiko did the TSB. Mine was working fine a few days ago, and then it came to a halt. I replaced the battery and it started working again. For some stupid reason I decided to tidy up some curd on the movement near the one battery retainer screw - and used a little tiny very soft watch brush. Apparently that was too much for that coil - the hour hand no longer works. Looking at it under high magnification I can't see any sign of a break - but the way the wires connecting the coil to the terminal just sort of dangle in mid-air on their way to the terminal is rather frightening. I've been looking for hours for either a used movement for parts, or for replacements for the coils.. zilch so far. I wonder if coils for other Seiko watches are the same? I do have a parts listing which carefully gives PN's for everything BUT the coils. The service manual for it does have resistance spec's so I guess that's the next thing to do if I can do it without completely destroying the coil. An issue is there is no circuit diagram available that I've been able to find, so it's a bit iffy even trying to do a resistance test with the coils in place.
That is actually quite interesting. Cheers Chris.
Can you do this with color? Have the noise in 3 channels of color, but have colored objects only invert a corresponding channel
It definitely works in colour, many of my later videos in this series use colour and explore how the XOR operation works on 24-bit colour values. I haven't tried it with just red/blue/green being on or off though, that might be interesting. You'd just get eight different possible colours for each pixel like an old 8-bit machine :-)
Why do you even waste your time on this? Flat Earthers should simply be ignored.
I know, you're right. Some of their nonsense gets under my skin a bit, thinking that some 'on the fence' people might get fooled by it.
I can read the text when its filled
can you run doom on this?
Not yet... :-)
My username is CrappyDude?
Not quite...
Chris, what you've presented here is quite correct and helpful and will work in any key. I'm a classically trained musician, and this is not routinely taught in classical circles - it's hidden in plain sight - but I came across a similar observation recently on another channel (can't find it right now). They showed that all the keys, black and white, at the back edge are roughly equally spaced, so the pattern for any scale can be setup there too. But your innovation and animation with perfectly evenly spaced notes is pretty neat! Kudos for original thinking and taking time and effort to share it.
Thanks Ian, it's good to hear from a proper musician that I wasn't too far off base. I think it's helpful, at least for some types of brain, to understand this as early as possible... I went through the usual 'learn C major, then learn G major, then learn this, then learn that' without any explanation of the underlying patterns. Thanks for the feedback!
yooo man thas super cool
omg, i paused the video to comment and it dissapeared, THIS IS AWESOME
It's a cool effect, isn't it?!
@@ChrisBLong it is!!!! LOVE IT!!
Short simple and too the point good quick debunk. Sadly most flat earthers still won't understand.
Wow!! That was great!!! Thanks!!!
Glad you liked it!
I love how I do feel I got a more sense of how the cube was rotating whilst it was green with the same luminance with OKLab, very cool, and kinda feels like it's the it's one of the best ways to showcase how we're more sensitive to the color green :)
HELLO ..WELL DONE ! ! . 😉👍🙋🏻♂️
Thank you 👍
Interesting video. I have had a system installed for about 12 years. Up to now, no problems. However noticed today, radiator in one room was cold. Although receiving signals from the controller, the motor was not activating. So it looks like I need a new valve. Fortunately they are now available for £47 if you shop around.
How did you deal with the gray pixels in the video?
This is very interseting. I came across this on "The Useless Web" and it facinated the heck out of me. They linked this video on the website so here I am. Great video by the way!
Very informs video. Well detailed. Thanks
i was literally just thinking about this
Definitely frustrating.
Where is the repair part? You sent it away and you call it "repair" when you only remount the hands...?
its so weird when i try to pause it and try to imagine the moving animation in noise just to be super off when i unpause it. its like when i try to close my eyes and try to imagine where certain things are and what the general image looks like before i open my eyes again