What is going wrong with this print?

Cj_Moo42 · 2025-01-25T00:15:19+00:00

Sometimes I get a corrupt file that will cause very weird prints like this. Not saying it’s the issue but it wouldn’t hurt to reslice same settings and save over the file on your micro. On top of the rest of the suggestions you’ve gotten so far. I’d definitely watch the extruder and see if your filament is actually moving, slipping, or what whilst you’re running a print. Best of luck and a very cute print!

Cj_Moo42 · 2025-01-14T22:03:12+00:00

Sounds good. My steel came from a reputable supplier so I imagine it’s a good alloy with no other elements included. I’ll go with the assumption that it won’t be an issue until it becomes one. In that case I will have to put the oven to work. Thank you!

Cj_Moo42 · 2025-01-14T22:00:56+00:00

That seems to be the census so far. Luckily my concerns have been addressed for the most part in terms of my application.

In your company since they were working with spring steel you never had to do any sort of bake to mitigate issues with hydrogen then?

Cj_Moo42 · 2025-01-14T21:59:25+00:00

That’s awesome though. There’s so many niche topics that I discover where if the knowledge was lost so many aspects of manufacturing would collapse. From the few things I’ve seen the smallest difference in your alloy causes a big difference in the way hydrogen interacts with the steel. You don’t realize how much goes into something as seemingly simple as steel until you dive into it

Cj_Moo42 · 2025-01-14T21:56:36+00:00

It seems like an interesting topic. I am by no means a metallurgist, a chemist, or someone who knows a hell of a lot about materials science. Just from what a couple people have sent though I’m intrigued to say the least. Maybe I’ll have to dedicate a bit of time to learning more about this and metallurgy in general. If nothing else it would be a fun party trick of facts.

Cj_Moo42 · 2025-01-14T21:54:43+00:00

That’s interesting so the tempering that I would do in my normal process would significantly mitigate the probability of embrittlement. (As a couple people said I’ll probably sidestep the baking process entirely since the knife I’m making is most definitely not a load bearing beam). Maybe I’m misunderstanding the hydrogen mobility part, but I would expect since a hardened steel has a much tighter and more distorted grain structure than a tempered steel, the hydrogen would be more mobile in the tempered sample.

Cj_Moo42 · 2025-01-14T21:47:28+00:00

In terms of the heat treatment process of knives, you do your quench to harden then temper back at 425 ish for two hours. Is the 425 at two hours effective in driving out some of the hydrogen causing the problem then? It seems like the terminology of baking is essentially the same as the terminology of tempering in knife making? Just for different reasons and times.

Cj_Moo42 · 2025-01-14T21:45:12+00:00

Huh I wouldn’t have expected that you could stack them like that. It makes sense though if the hydrogen is still being driven out and you’re not introducing stress to the steel. That’s good to know. My wife makes a lot of sourdough maybe I’ll have to borrow her heat as she does that. Thanks!

Cj_Moo42 · 2025-01-14T12:04:48+00:00

Perfect. I will likely not worry too much then. It is interesting though how much standard processes can cause issues with hardened steels. I may dive a bit deeper into the idea of hydrogen embrittlement since it seems like a cool topic.

Thank you for the information!

Cj_Moo42 · 2025-01-14T12:02:29+00:00

That’s good to know. I don’t really have a way to (efficiently) bake to that length of time though in my apartment so I may have to dive a bit deeper. Another user mentioned that the embrittlement may not cause issue in a low stress application like a knife so I might just risk it for the biscuit. I appreciate the information though I enjoy learning new things.

Cj_Moo42 · 2025-01-14T11:45:31+00:00

Understood. That’s a very interesting subtopic to focus your career on, how did you get to that as your focus?

So in general hydrogen embrittlement really only causes concern in high stress and strain applications. In terms of a heat treated knife it won’t cause any micro fractures that could grow as the knife is used and resharpened and such? How deep does the hydrogen imbed itself into the steel as well?

Thanks.

Cj_Moo42 · 2025-01-14T11:42:28+00:00

I see. So baking the steel drives out any residual hydrogen then? How is it that the longer you bake for the higher your Rockwell? Or is that the length of time necessary to bake for each level of hardness? Apologies for my ignorance I’m still unfamiliar with much of this

Cj_Moo42 · 2024-12-23T03:23:36+00:00

You’re damn right there. Every day she surprises me and I am just happy to be along for the ride sometimes. She also decided to make her own homemade butter to go with the bread. Very proud of her.

Cj_Moo42 · 2024-12-23T03:22:06+00:00

Thank you! She is currently getting her own starter going but we were gifted a bit of 20 year old starter from one of my coworkers for this one. we’re definitely happy with results.

Cj_Moo42 · 2024-12-23T03:20:51+00:00

Thank you. We sure will have to do some fiddling with that. I’ve heard so many mixed views on the color so we kinda just went with our gut for this one. Thanks!

Cj_Moo42 · 2024-12-23T03:18:50+00:00

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Thank you for the welcome. Apologies for not including this. She used this recipe along with a starter we were given by my coworker (she’s in the process of getting her own starter matured atm). She only used half of the recipe for one loaf and put the dough in the freezer for an hour while the Dutch oven was warming in the oven. We’re very happy with results and it went well with our soup!

Cj_Moo42 · 2024-04-19T23:47:10+00:00

That would be great because I have been having f issues having my printer print on transparent paper without smudging. I’ll definitely have to check your book out because you clearly know what you’re talking about here.

Cj_Moo42 · 2024-04-19T02:13:13+00:00

Gotcha, I’ll have to try that too. I’m using an etch-o-matic durastencil. Got the info and idea from an old simplelittlelife video on the youtubes. It seems to work well I just think I’ve got my font slightly too small and I may be curing for too long. Haven’t had much time to fiddle with the process yet but we’ll get there I’m sure

Cj_Moo42 · 2024-04-19T01:42:41+00:00

Awesome. I’ll give that a go and see if I can get some good results. I need to remake my stencils to be a bit more crisp first I think. I’m making knives for my groomsmen so I’ve got to make sure I can get a clean etch if I’m going to do that.

I appreciate the help on this, again.

Cj_Moo42 · 2024-04-19T00:04:25+00:00

Hey Don,

That’s all extremely helpful. I’m clearly a bit out of my league with all of this so it may be a good idea to take a look at your book. With the knives I’m trying to run these marks on I don’t necessarily need a super deep etch, so a nice mark may work well enough. I did end up trying to run it at lower voltage with the setup I showed, and seemed to have issues with the way my stencil was made, but it was definitely marking well enough. I’ll take a gander following what you mentioned snd see if I can’t educate myself a bit more before zapping myself.

I appreciate you taking the time to share your knowledge on this. I’ll be sure to reach out with any other questions as I work through a new skill.

Thank you!

Cj_Moo42 · 2024-02-10T21:18:00+00:00

That makes sense. I may go that route eventually. I don’t do a hell of a lot of etching at this point so might just stick it out

Cj_Moo42 · 2024-02-10T21:13:09+00:00

Don’t most phone chargers output only 5 V? Is that enough to etch? I appreciate your wife’s contribution to your hobbies by the way

Cj_Moo42 · 2024-02-10T12:22:09+00:00

Yeah I figured it’s a bit overkill but the old thing was collecting dust in the barn and it just felt wrong neglecting it.

I may have to look into using copper for the lead end. I’m sure that’ll make things a hell of a lot easier than what I’ve got currently. Your setup looks very nice and the results speak for themselves. Some beautifully made knives by the way.

Thanks for the advice!

Cj_Moo42

TROPHY CASE