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Sorry you only have 36 thumbs up at this point, if it helps this is a really useful video and I really appreciate your efforts in recording it.

Hej du köpte nya larvband till din minigrävare och vart köpte du dom ifrån?

vacume stick to pick up chip...

For anyone coming across this, there are multiple different kinds of "dust" that you can use: Fine powdered silicon carbide is going to give the most stiffness, but less damping. It's also expensive. A cheaper alternative is aluminum oxide which is also strong and hard, but not as stiff as silicon carbide, but provides slightly more damping. Another alternative if you can find it for cheap is iron oxide powder, which has a lower stiffness than both silicon carbide and aluminum oxide, but it's denser and offers more damping. For all of these, you want to search for a fine grit (#220 or above = very fine), and mix it with larger particles such as the sand. Sand is a very cheap filler by weight, but is not very stiff, and not very dense. An alternative for higher stiffness and density than sand is steel grit that you can buy from sandblasting supply stores. One thing to remember: If you are looking for strength/stiffness as your primary criteria, then use metal to fill in as large of a space as possible. I.e. If you have a cylinder that you want to reinforce for strength/stiffness, it's better to stick rebar down the cylinder with the epoxy granite mix surrounding it than it would be to fill the whole cylinder with epoxy granite only. The purely epoxy granite fill may offer greater damping and resonance control though if you don't need the extra stiffness.

Next time you need to pull out a Tapered Bearing Race, try using a metal cutting disc on a Dremel or similar. Cut a groove in the race across the thickness, and split it with a hammer and chisel. The metal is hard so it will give in to this. We did this all the time for bearings and racing in the rebuild shop.

Magyar vagy?

Hi. How can I contact you? Could you give me your email?

The problem was the size of the bubbles. The bubbles must be less than 3 mm. This has to do with surface area. Also your pressure was way to high. Apparently you run 1 1/2 LPH on the argon. I just watched a video made by an Australian guy. It's the best video every made explaining degassing in my opinion. I will incl a link here but not sure if I can attach it to your video. The poster is called: Olfoundryman Here is the video link: ruclips.net/video/9J4Y_7GCmYg/видео.html By the way your video is good but there are issues that need fixing.

Hi Hakan, I would like to contact you personally

Hey @MetalMusings, Thanks for your wonderful video. I saw it many times to understand how command lines worked. In my case, I want to use Raspberry Pi 4 B as an EtherCAT slave with Beckhoff IPC for an Injection Molding Machine. I followed the same steps but unfortunately it didn't work in my case. So, please assist me with how I can use Pi as an EtherCat slave and if there is any Kernel or add-on needed, please share it with me. Additionally, please let me know how to approach you for any specific query such as how to test latency in this EtherCAT communication and to read and store this real-time data of the molding machine on Pi (with the help of CodeSys whose runtime application is running on my Raspberry Pi 4 B) ?

In the middle of the video, your laughter can feel very satisfying emotions, and you can also imagine a very happy expression.

I am gearing up to make a cnc mill using ethercat drivers. Examples I've seen are using velocity command instead of position in LCNC. I guess that way the drives don't accelerate and decelerate to each position but rather small changes in velocity. I don't know much about this stuff just to be sure and I and very impressed by what you've done so far.

very nice , but can we add 4 encoders for the 4 stepgens?

Great work mate, those hybrid steppers sound pretty nice, was interesting that you clicked on to the noise of "a poor tune" and solved it! I didn't realize that the stm32 have such a low clock rate, I heard you say that you had tried different crystals which I must say Is seriously under the bonnet. From my cheap seat have you looked into ESP32 by Espressif, they have an adjustable clock rate between 80-240Mhz and as you may already know incorporate wireless. I imagine there are other variables which will make for a good or bad motion controller like onboard cache, but that is getting above my pay grade. Respect your work and thanks for the upload

Really appreciate your work, for a while I keep thinking on controlling my lathe with ethercat, its just that beckhoff seemed a bit too expensive for experimenting and I was not sure how stable the ethercat master is

8:16 LAN9252 is problematic like this with these inconsistent PDI delays that can reach hundreds us. I did some benchmarks on it and seeing results I had not even attepmted motion contiol with this ESC. AX58100 is going to be be much better

How did you write sd card with linuxcnc-2.8.1, I have used rpi imager to write sd card but its not booting. Also I have tried other images but they don't have same kernal as shown in notes (linux-headers-4.19.71-rt24-v7l). Is there any alternate solution for this ?

Great video. Just subbed! What do you think of using steel shot ( steel blasting media ) instead of sand. It steel shot is more dense! Thanks

I don’t suppose you could tell me where the standard filter is on this? Thanks Daniel

Just found your channel and subscribed. Very nice work

Great work, I came across your project as I'm doing almost the exact same thing. I have it under control hardware wise but it's luck I came across this for the work you've done on the software. I did want to mention your issue with the index pin as if I'm understanding what you did by creating the index-enable latch as a HAL component I don't think that's actually what you want to do. The index-enable is supposed to be implemented in the controller firmware. Reason being the LinuxCNC side cannot reliably catch an index pulse, that's why the index-enable exists. It's the same way on Mesa cards but index enable is done on the FPGA as the hardware will catch the index pulse and trigger the latch far better than you can on the PC side.

Hello, I am developer behind ecat_servo and EEPROM_generator, good to see it is useful. Code generation tool was recently updated with some bugs fixed, you probably want use latest version. I also had a look at your sources, you might want to save/commit application .json so you can edit your EtherCAT application in the future - that JSON is 'save project' file for the web tool

Do you have a video that explains what each component and part does? New to cnc and really want to learn I don't know where the forums are so I can learn

Will the EaserCAT 3000 code part be open source? I also want to make one

Наоборот надо ставить подшипники!!! А так - неправильно

Great work. I would like to convert the KiCad files into gerber and drill files that Jlcpcb will accept if I can. Will see if I can work it out. Thanks

hi Sir, you buy the excavator to use or to sell please? 😊

Merci !!

CNC Motion Control over Ethernet Cable! Leadshine, LinuxCNC & EtherCAT Marco Reps ruclips.net/video/FEPfznStd0s/видео.html

Utmärkt arbete Metalmusings :)

What are you day job ?

Well done, I have really been enjoying this series. Thanks for sharing.

very nice! What are you doing for mounting however? no screw holes :(

Good job!

Very cool

5:19 It's more like four spring passes :) Thanks for the video - it's cool.

very nice, thanks a lot! it is a very cool project

this a joke? hope u don’t sell that machine to anyone…..

An elegantly simple fix.

Great to see a practical use of a PC rather than just gaming - well done on the upgrade

ok. why 4 encoders but only 2 stepgens?

very greate! thanks alot

tipp topp!

Den minst centrerade stålbiten i historien.. snyggt gjort dock. :)

I've been looking at upgrading my 15 year old Linuxcnc computers with mini PC n100 type. I have similar mesa configs. What drove your decision?

Great video!

Just don't forget to take off the tape from the cooler heatsink thermal paste. If it was there... Not clearly seen it.

can you share more details about software part please

Nice to see.😃

Impressive what you have achieved. Are you still using the RPi4 as EtherCAT master?