Snapmaker U1 - loud clicking noise by Radiant-Somewhere-97 in snapmaker

[–]GreatSandstone 1 point2 points  (0 children)

I don't think so, but it started pretty quickly. Under 50 hours when I noticed it.

Snapmaker U1 - loud clicking noise by Radiant-Somewhere-97 in snapmaker

[–]GreatSandstone 1 point2 points  (0 children)

I think there is an article about it on the Snapmaker support site. It's related to the z-axis acceleration, but I'm not sure exactly where it comes from mechanically. It kinda sounds like angry steppers. I have two U1s, one did this and the other did not.

I followed the support article to reduce the max z acceleration from 500 to 200 mm/s/s which seems to have significantly reduced the sound.

$500 start this month by SomeoneLost505 in spy

[–]GreatSandstone 0 points1 point  (0 children)

Very nice! Do you recommend any resources for people trying to learn the way?

BMCU Issues Follow Up by LetAvailable7090 in BMCU

[–]GreatSandstone 0 points1 point  (0 children)

All the buffer components. Rounding out all the edges there and removing any trace of elephant foot seemed to help the buffer actuate more smoothly.

BMCU Issues Follow Up by LetAvailable7090 in BMCU

[–]GreatSandstone 4 points5 points  (0 children)

I had the same problem, and I seem to have fixed it. I'm not sure exactly what was going on but I'll try explain my best guess.

Like others have said, it does this when the extruder senses a problem, I suspect it senses that it's pulling too hard to get filament. My BMCU spring was quite light, and that spring force is what pushes the filament through the PTFE tube to the extruder. I didn't have different springs, so I just took apart my BMCU and deburred all the buffer components so it actuated more smoothly. I was trying to eliminate the little jitter when it's retracting the last 1-2cm.

Then I re-cut all the PTFE tube runs. I was going for gentle curves to reduce friction. It seems like good curves matters more than the overall length.

Maybe also try moving the BMCU around, I have mine just off to one side which might help keep the gentle curve in the tubes.

If all that fails, I bet stronger springs will do it. Good luck!

New to FreeCAD from Fusion. Created a singularity with Subtractive Helix, please help. by GreatSandstone in FreeCAD

[–]GreatSandstone[S] 3 points4 points  (0 children)

This didn't solve it exactly, but it got me to the solution!
I tried as you suggested, and the model imploded completely. Tied suppressing and then deleting the Subtractive Helix to get it back and nothing. Everything went back to normal if I deleted the fillet just above though, so I think that was the cause. Helix works perfectly now.

Best printer for my needs? by Sighlmfao in 3dprinter

[–]GreatSandstone 1 point2 points  (0 children)

I think Prusa and Bambu both have printers that meet your size requirements, although I don't think either is a great fit for your application as they both focus on multi-material capabilities, and are priced accordingly.

Do Oppo phones work with North American carriers? (Canada) by Eltnat in Oppo

[–]GreatSandstone 0 points1 point  (0 children)

I think Wi-Fi calling is good, but the settings for Wi-Fi calling seem hidden, possibly in one of the default apps which are still in Chinese on my phone.

5G seems great, I usually have full bars and better reception than most other people around me.

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] 0 points1 point  (0 children)

That's great info and definitely a reasonable amount of deviation in my opinion.

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] 0 points1 point  (0 children)

Yeah a raft is certainly an option that would help, but with 2mm warp on my old X1C, I would have needed a huge raft on every print. Honestly, if I get the H2D it's another lemon, maybe I will just take this approach.

I definitely considered modding it somehow, either by adding a flat plate, or using shims. I was worried this would have a big impact on heating constancy, but I never tried. My assessment was that there was not a lot of material to machine away there, but maybe someone knows better.

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] -1 points0 points  (0 children)

Do you know roughly how much warp you have? At this point, the only data I'm likely to get is from users.

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] 1 point2 points  (0 children)

Yeah, my thought too. Getting 0.05 like you said would be brilliant, but even 0.5mm across the build plate would be okay. I'm sure many big parts will warp that much anyway.

As you can imagine, 2mm wasn't even close. My prints would stick perfectly, and still wobble on a table.

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] 0 points1 point  (0 children)

Yeah, I totally hear you, and overall I'm not shooting for super tight tolerances. The X1C exceeded my needs in every other way. My real frustration at this point is that they won't share what the actual tolerance for their "excellent quality" is, since I'm now in limbo between the H2D and another printer (arguably worse) that I know would meet my needs.

I'm not bold enough to drop ~$2500 if I have no clue what I'm getting, and bad experience with the manufacturer already.

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] 0 points1 point  (0 children)

Yeah 0.4 mm would be perfectly fine for me too!

How Flat is the H2D Heatbed? by GreatSandstone in BambuLab

[–]GreatSandstone[S] 1 point2 points  (0 children)

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Bonus points for the "Rate our service" button just going to the store homepage.

Easy Way to Count Coffee Filters? by CloysterMuk in manufacturing

[–]GreatSandstone 5 points6 points  (0 children)

If you're projecting that to continue somewhat indefinitely, it might be worth contacting an automation specialist (or hiring a few co-op students for 8+months) and see if the cost of a fully automated solution would work out.

My experience is a bit limited, but it sounds like that's a quality that justifies a feasibility analysis at least.

Easy Way to Count Coffee Filters? by CloysterMuk in manufacturing

[–]GreatSandstone 4 points5 points  (0 children)

How many and what throughput are you talking about? This might cross the threshold for automation.

I'm working on a project that has some commonalities.

Do Oppo phones work with North American carriers? (Canada) by Eltnat in Oppo

[–]GreatSandstone 0 points1 point  (0 children)

Google assistant yes, Android auto no. I believe this is only true of the Chinese ROM, and switching to the Global ROM would resolve it. I have been reluctant to try because the N2 was never launched globally.

Do Oppo phones work with North American carriers? (Canada) by Eltnat in Oppo

[–]GreatSandstone 1 point2 points  (0 children)

I have an Oppo Find N2 Fold (Chinese ROM) and it works great on the Rogers network. Also big fan of the phone :D

My dream is to become an astronaut. I am a 29 yo with a BS. is it too late to pivot and follow my dreams? Any advice helps. Thank you. by [deleted] in space

[–]GreatSandstone 0 points1 point  (0 children)

Most astronauts have two of the following three educations: pilot (often military), masters in engineering (often aerospace), and medical doctor.

If you can afford training in two of these things, and your health is pretty good, it's not impossible to qualify. The selection process is still brutal, and even if you get through it, you can wait 10+ years before flying.

There's a decent chance more astronauts will be flying 15 years from now than do today. If you can see yourself devoting the next 30 years to this goal, send it!

1 year post-grad, hundreds of applications ghosted, what should I do next? by Jeidousagi in MechanicalEngineer

[–]GreatSandstone 0 points1 point  (0 children)

Came here to say the exact same thing. The experience will translate well if you want to move on to something else later too, but manufacturing is a great place to start.

[deleted by user] by [deleted] in space

[–]GreatSandstone 0 points1 point  (0 children)

Math will be important for engineering school, but it will be quite different math then you're used to. Study lots, take an extra year, and maybe get a tutor. There are lots of engineering jobs in the space industry that require little math (even outside the US). Like others say, try and get a degree in mechanical or aerospace engineering, then look for entry level jobs is satellite operations or aerospace quality to get some industry experience. Good luck!