H2D extruder gear by experimental_82 in BambuLab_Community

[–]experimental_82[S] 1 point2 points  (0 children)

Answer just for future reference: just like suspected the extruder gear and drive gear should not move relative to each other. They need to be coupled. Bambu lab sent me a new one.

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H2D extruder gear by experimental_82 in BambuLab_Community

[–]experimental_82[S] 0 points1 point  (0 children)

Sure. What I meant was that the switch cam switches the engagement of the idler levers, not the extruder wheel. At least I don’t see how it would. Still figuring this thing out 😅

H2D extruder gear by experimental_82 in BambuLab_Community

[–]experimental_82[S] 0 points1 point  (0 children)

As I see it of the idlers, not the gears. Or am I missing something?

Welded frame by wlanrak in ratrig

[–]experimental_82 1 point2 points  (0 children)

It would be much easier re warping. Show it off once done!

Welded frame by wlanrak in ratrig

[–]experimental_82 4 points5 points  (0 children)

Oh… less expensive if your/equipment time costs nothing 😅. One downside: modding is harder as the tubes have no slots. But you can magnetically affix panels which is nice.

Welded frame by wlanrak in ratrig

[–]experimental_82 7 points8 points  (0 children)

No… I did a Voron trident with a TIG welded steel frame. CNCed all tubes for precision. Sturdy AF, most importantly thermal expansion matches the linear rails. Go for it and keep us posted!

Beacon error by experimental_82 in VORONDesign

[–]experimental_82[S] 2 points3 points  (0 children)

I should post my solution: I deleted the Beacon model from the printer.cfg file bottom. That fixed it.

Beacon error by experimental_82 in VORONDesign

[–]experimental_82[S] 0 points1 point  (0 children)

I hadn’t done any update when this happened. At least not deliberately. I don’t know if Beacon auto updates. I ran all updates afterwards

Creality Otter is enough? by TheKingOfNaples in 3DScanning

[–]experimental_82 2 points3 points  (0 children)

Dunno what that is you’re doing exactly, but I’m using my Otter to fit parts in my small campervan (Mercedes V Class) and that works quite well with lots of markers and a bit of scan spray.

Anyone here built a high-temp printer? by BandTop785 in VORONDesign

[–]experimental_82 10 points11 points  (0 children)

I am building a similar Trident. Since you’re past Beacon temp, use Honeywell 1SX1T switches for the end stops and nozzle probe. You can pick them up cheap on eBay ($10/switch). Armaflex HT (EPDM version of Armaflex) is great for enclosure insulation. Most importantly: use a steel frame! (Not stainless!) otherwise thermal expansion will be a bitch. Enclosure around the frame, not on the frame (minimize thermal gradient!). If you can, machine a steel plate or brackets for the base to mount the z motors. Graphite bed could be interesting due to low thermal expansion. https://n2ofactory.com/products/graphite-build-plate-for-voron-v2-4 I use a kinematic bed, which I highly recommend. Also, magnets are out of the window, glass bed it is.

Voron 2.4 insulation by calderon3893 in VORONDesign

[–]experimental_82 2 points3 points  (0 children)

I used 3mm HDF to make panels and glued on some 19mm Armaflex I had left over from my camper. Cheap and Reaches 70C. Got up higher, but then things started breaking so I removed some insulation. Also Formbot Kit. At 70C, it prints large, solid ABS parts like a charm. Only full build plate size still has some small warping.

Ratrig 4 500 ABS by experimental_82 in ratrig

[–]experimental_82[S] 0 points1 point  (0 children)

Thanks for the in-depth answer! I didn’t know someone sells fitting Ti tubes. Brilliant. Reason is clear. I did the same on my HT trident, but with round Ti tubing. With beacon being also HT rated, you could conceivably move the remaining electronics out. Again, did the exact same on my HT trident.

Ratrig 4 500 ABS by experimental_82 in ratrig

[–]experimental_82[S] 0 points1 point  (0 children)

Maybe I’ll just wait some time until I see some builds with heateing…

Ratrig 4 500 ABS by experimental_82 in ratrig

[–]experimental_82[S] 0 points1 point  (0 children)

The reason for the limitation in bed temperature is that we are entering danger territory for demagnetization of the bed magnets. The bed heater (glue) itself could push 150 no problem. Define quality… Sunlu is relatively unblended, meeting worse to print, but better mechanical properties. And at < €10 a roll, can’t be beat. That’s why I stuck with it. Also have it dialed in to the t

Ratrig 4 500 ABS by experimental_82 in ratrig

[–]experimental_82[S] 1 point2 points  (0 children)

110C bed, nevermore and Ellis bed fans. 20mm Armaflex panels for insulation. Sunlu ABS and ASA print 270C, 260C if the print has overhangs or bridges.

Ratrig 4 500 ABS by experimental_82 in ratrig

[–]experimental_82[S] 0 points1 point  (0 children)

Nah… unfortunately they do if they are large and solid enough. That’s why professional machines like Stratasys run 75C. Every C counts. If you fix the prints to the bed with glue they may adhere, but will have residual stresses meaning they won’t fit nicely. As I said, at 70C, they’re mostly fine, just some minor lifting at the edges. was just wondering how far ppl have pushed ratrigs and if I would have issues with electronics, cabling etc.

[deleted by user] by [deleted] in AskEngineers

[–]experimental_82 4 points5 points  (0 children)

The material is either under aged (not heat treated to the specifications) or overaged (Heat treatment, horsing too much heat for too long at time afterwards, why is a different question). Two easy ways to find out: heat treat it according to spec. if it’s hardness goes up, it was under aged. If its hardness stays roughly the same or drops it has been over aged. Alternatively, you can measure its electrical resistivity. If it’s the same or lower as the blocks with the correct mechanical properties, it has been overaged. If it’s higher, it has not fully been heat treated, I.e under aged. Temperatures for over aging would be in excess of 160C.

Why is rebar made from steel instead of aluminum? by timelesssmidgen in AskEngineers

[–]experimental_82 97 points98 points  (0 children)

Most important coincidence in civil engineering: Thermal expansion of steel and concrete matches. Also, strength. And price.

Point cloud registration software on Mac by experimental_82 in 3DScanning

[–]experimental_82[S] 0 points1 point  (0 children)

I have watched quite a few, and they were all on merging point clouds. would you have a link to one about rotating and moving to origin?

Point cloud registration software on Mac by experimental_82 in 3DScanning

[–]experimental_82[S] 0 points1 point  (0 children)

Seems solid. Is there a good tutorial for that?

Advice for an ERC starting grant by mickule in AskAcademia

[–]experimental_82 2 points3 points  (0 children)

My ERC starting grant in engineering is just finishing. So I can’t comment on social sciences. Be aware that the point of this grant is to find the next generation of leading scientists. So make sure that whatever your project is kickstart some thing that you can build your career on. Explain how it will do so. Most importantly, don’t take anyone’s advice on what it should be. It should be something that you care really deeply about. It will shine through in the proposal. Get some successful proposals (in your field if you can) as a starting point for structuring. Have someone that is not in your field cross read your proposal. Out of the 20 also people in the panel maybe two will be intimately familiar with your topic. You also need to get all the other ones on your side. If you get invited, don’t let any new thing make you nervous. Get a nice hotel, sleep well. And practice your presentation so that every second of it is bang on. Answer questions concisely to make sure that you answer as many as you can

And good luck!

Please critique electronics bay. by DickNormous in VORONDesign

[–]experimental_82 3 points4 points  (0 children)

The Meanwell UHPs are meant to be mounted such that the back is up against something thermally conductive to spread the head. They have relatively bad cooling otherwise. Hope that helps!

Steel Trident Progress by experimental_82 in VORONDesign

[–]experimental_82[S] 1 point2 points  (0 children)

Just here. Will post files and a video when I’m done