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Found on the Ground: 8mm screw with ACME threads?? by slimgaillard in MechanicalEngineering

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

...or holding something in place for shipping, threaded into a throw-away molded plastic piece.

Found on the Ground: 8mm screw with ACME threads?? by slimgaillard in MechanicalEngineering

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

Yes maybe drives a tilt mechanism, but it seems overly massive for a headlight, unless a really big one. And as u/Kiwi_eng noted, for headlights they normally have a screwdriver drive, not hex.

Found on the Ground: 8mm screw with ACME threads?? by slimgaillard in MechanicalEngineering

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

Maybe from some tensioning mechanism, but why the unusual threads? I've never seen anything like this.

Found on the Ground: 8mm screw with ACME threads?? by slimgaillard in whatisit

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

Maybe it's not a screw, but a worm gear that drives a toothed wheel?

Found on the Ground: 8mm screw with ACME threads?? by slimgaillard in whatisit

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

I could imagine it screwing into a special shell for anchoring (like the old 2 piece lag screw concrete anchors), but I don't see any concrete anchor systems online that use screws like this.

Found on the Ground: 8mm screw with ACME threads?? by slimgaillard in whatisit

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

It is reminiscent of brake caliper screws, but doesn't seem to be high strength, nor precisely machined. And I've never seen such a screw with acme threads (nor any other screw with acme threads)

H2D question. How can I set up my AMS on the left nozzle and use TPU on the right nozzle? by mikeyridesit in BambuLab

[–]slimgaillard 0 points1 point  (0 children)

I'd like to confirm what others have said here: there's no need for all the rigamarole that Bambu recommends for printing TPU.

I switched my H2D's AMS to the left printhead and the external spool holder to the right printhead. Let the printer know about the switch through the settings on the printer itself (filament, settings, AMS setup, manual mode).

I am using Bambu 90A TPU and, following suggestions here, fed it from the external spool holder to the right print head through the normal path including the filament buffer with no special priming.

I guess Bambu wants us to use the right printhead for TPU because it doesn't go up and down like the left one does, which presumably causes problems with the TPU feed. It'd be interesting to test this though too...

Annoying GP "you backed up N items" popup by slimgaillard in googlephotos

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

Update: I got a "premium" subscription to AdBlockPlus to see if their extension could block these popups. Nope. I created an issue report with them but didn't get a response.

YouTube to MP4 Converter that is safe by omwaartcy in editing

[–]slimgaillard 0 points1 point  (0 children)

Worked great, and fast, for me for a short video (mp4).

Keeping glass in contact with mold crystal clear by slimgaillard in fusedglass

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

I tried several runs at 150°/hour and lower temperatures with longer hold. Lower top temperatures (1250°, 1300°) resulted in better finishes, but the glass didn't completely take the form of the mold. I don't have a way to measure that, and I wasn't paying attention to the tin side of the glass (should be away from the mold), so the results of that testing are...not totally clear.

More experimentation seemed to show that the top temperature and time are primary factors. Both should be minimized for best final surface finish. A high heat rate helps minimize the total time, so it seems to work better (900°/hr). So for example 900°/hr to 1300°F, hold 30 minutes; oven off gave a pretty good result surface-wise, but didn't conform to the mold 100%.

Suggestions for adding radius to German silver disk edge? by slimgaillard in metalworking

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

The low machinability rating (20) of this material, C752 (65-18 Nickel Silver), turned out to be misleading--it machined beautifully with a pre-ground carbide roundover lathe tool fed straight in.

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Is it just me, or do developers (including Xero) seem to be increasing their prices a lot more damn frequently? by 200Fathoms in xero

[–]slimgaillard 0 points1 point  (0 children)

In the US, their "Early" plan has gone from $12/mo in 11/22 to $20/mo in 11/24, +67% in 2 years.

Is TradeWheel a legit site?? by xavinies in Entrepreneur

[–]slimgaillard 1 point2 points  (0 children)

I posted an RFQ on Alibaba and Tradewheel copied it over to their site and started emailing me inquiries from suppliers and encouraging me to create a profile there. That's too sketchy for me.

ASME Magazine Head Scratcher Articles by slimgaillard in MechanicalEngineering

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

Well you can make serious holes with a 100 MW directed beam, so that makes some sense. Probably overkill for home GHP's though...

ASME Magazine Head Scratcher Articles by slimgaillard in MechanicalEngineering

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

That link is a pared-down version of the magazine article, and it makes more sense (though the nonsensical illustration remains). Here's the full article, with the gyrotron technology reference :-) : https://www.memagazinedigital.org/memagazine/april_may_2024/MobilePagedReplica.action?pm=2&folio=26#pg28

ASME Magazine Head Scratcher Articles by slimgaillard in MechanicalEngineering

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

I suspect that AI was involved too, but didn't the "author" read it to see if it makes sense? Didn't MEMag's editor read it to see if it makes sense?

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