eBay impact tester vs DIY impact testing machine

[@romainmuller-rs5yi]

Hi Igor! Just a comment to say that this kind of video is very interesting for me. As a mechanical engineer by training and currently working as a stress analysis engineer, this is the kind of content that I love! Thanks for all the hard work!

[@eltorro]

Every time I watch one of your videos I can't help but think of all the time that went into everything; preparing tests/prints, testing, commentary, recording/presenting results and editing everything together in a way that flows well. Not to mention keeping things organized when filming multiple videos at once! Always very much appreciated!

[@MyTechFun]

Thank you. Yes, that's the hardest part, working on 4-5 videos at once. I want to reduce number of my videos, but they are just comming..

[@Chris623]

i would like to see more of these videos and please make one if you modify the cheaper version

[@riba2233]

Don't worry, I love vide0s like these new testing machinery is very exciting 😊

[@GeekDetour]

14:45 Yeigh! I would love to see you using that magnetic encoder and turn this analog into a fully digital measuring machine ❤️

[@MyTechFun]

I can show it to you, when it will be finished. But for the video.. not sure. The machine itself is not too popular. Upgrade of it will get even less views.

[@danielrioux54]

A few weeks ago, I commented on the importance of thoroughness when presenting scientific content, especially for professionals holding both a Ph.D. and an engineering title. I'm pleased to say that today's presentation met that standard and was very well done. The explanations were clear and precise, the tests were sound, and the choice of equipment-especially the final one featured-was excellent. This time, the video truly passed the test (no pun intended). Kudos for delivering a high-quality and informative video. Keep up the great work!

[@hotfix7387]

I subscribed to you over a 1/2 a year ago because of all of your great 3D printing content, but I really appreciate videos like these that explain how your testing works and the amount of effort and k knowledge you put into it. I hope you do a video on the conversion of the other tester because that would be cool to see. I'm only an IT engineer, but I'm a true engineer at heart and enjoy learning all about your testing process, such as why you moved away from your home grown system. The best learning comes from the failures and not the successes.

[@MyTechFun]

I wouldn't say "only" IT engineer :-) Thank you for kind words.

[@timhoover1416]

Great explanations. This took me back to a few of my engineering classes. That's been a couple of decades at this point for me.

[@Tom_makes]

Hi Igor, I just wanna say I love those type of videos, even though I’m here because I love 3D printing. Keep it up. 😊

[@Andre_M_3D]

Great work as always. And glad you eventually got your order.

[@mikejackson9585]

The 3D printing videos are great but definitely, definitely expand to projects as well. This is a cool break from your norm, but still stays true to your channel.

[@letoxique]

absolutely in favor to see a bit more about those machines and how you calibrate and modify them for better accuracy etc. Also, this was the first time i remember where you didn't wich "happy 3D printing" in the end. You could instead have wished for "happy destructing 3D prints" ;)

[@flashforum939]

I love how you present your process and how you continuously strive to perfect the tools in pursue of greater accuracy and repeatability. Also a huge thanks for testing all the filaments - I am only a tinkerer and layman, but I am also a fellow nerd who appreciate the knowledge you share. Actually signed up for your Patreon to see the content and get the spreadsheet data you have produced. Love to see the actual tests and the BTS content. Thanks!

[@SeanCMonahan]

"I thought I got scammed... It wasn't funny two months ago, but it is funny now." 😂 I'm glad it seems to have worked out alright. Love your videos, btw.

[@JanTecEngineering]

Thank you so much for this video! I'm currently trying to build a better, modular impact tester (like the digital one you showed in the end). Your videos help a lot!

[@jaro6985]

Good video and ideas. Digikey has some 14 bit cui encoders as well but cost increases to $50. 12-bit are reasonably priced.

[@gloriousapplebees]

Good on you for making sure to pay that first company when you got the machine. I understand why they're doing what they're doing but there has to be a better way, if someone decides to trust it they could very easily lose out on everything if something happened in shipping

[@anon-means-anon]

Great work! Very interesting

[@ericmary1338]

Great video. I wish I could afford the testing equipment myself!

[@darthtater]

Great video and a great looking machine.

[@nihiltube]

Great video!

[@wavyseahill]

Very interesting video!

[@Khoomn]

Great to see that you are getting upgrades you want for these types of videos. Will you be redoing most of your previous videos on filaments with regard to the impact test or just going forward?

[@MyTechFun]

Probably I will, the most important ones, but not with this machine. I hope the other (I mentioned it in this video) will work correctly with both IZOD and Charpy.

[@kimmotoivanen]

I think that with 2 small modifications, the DIY tester would be better and more accurate (and approved for scientific reports) than bought ones: - hammer head milled to correct shape and weight - lightweight shaft, maybe carbon fibre rod, to idealise center of mass Even if the problem doesn't look like a nail, hammer might be the correct solution :D

[@MyTechFun]

The problem was it is DIY, not industrial machine, designed by some company.

[@ImolaS3]

I would like to see a video of the conversion and testing of the digital version

[@AwestrikeFearofGods]

3:44 However, the distance from the hammer's white dot to the scale is far greater than 5mm.

[@MyTechFun]

Hm, correct. But if the distance from zero is below 100 mm (like it is in most cases), then that parallax error is again much smaller. If distance is big, then that error doesn't matter too much. But, yes, correct note. Thx.

[@peterhopkins1503]

I would be interested to see the conversion of the machine to an electronic version

[@MyTechFun]

It will be converted, but my problem with creating the video is the low interest for the machine itself. The upgrade would get even less views.

[@KaloyanDobrev]

Please do a video about the rotary encoder

[@MyTechFun]

Eh. Hard decision. Even the video about the unit itself is not too popular. I will get much lower views about the upgrade of the same machine :-(

[@andyburns]

Maybe they'd approve of your homemade tester if you used a spherical hammer with an infinitely thin handle?

[@MyTechFun]

No, their problem was DIY. Not the geometry. Probably the reviewers are not even familiar with correct geometry of the ISO impact tester.

[@ZappyOh]

Nice gear :)

[@AlexanderA80]

I think if you add digital angle meter to your DIY model you will get same with Chinese model results :)

[@tinkeringpoko]

Even $800 seems too much to me considering its BOM cost and our European folks demand 30-40k euros😅.

[@gebebbebebebr]

Can you test the new eSun ABS+HS? I saw some comments of people saying that it has better layer adhesion than the regular eSun ABS+

[@HomoSapiensMember]

would be nice if you add patreon to acknowledgements section as thanks for the funding

[@MyTechFun]

What do you mean exactly? Somewhere in the video? (I thanked them in this video too, but also separately, directly to patreon post)

[@HomoSapiensMember]

​@@MyTechFun in the article when resubmitted, its an idea and entirely optional pushed it nonetheless since acknowledging can add extra credibility sidenote i think the encoder mod would absolutely warrant an MTF video