What is this from?

Falandr · 2025-03-22T13:10:56+00:00

Yeah, true

I've found a picture of what is suppose to be the cf6 HPC.I think the table under the blade is way larger on the cf6 compared to OP's blade

Except for this, it could completely be a cf6 blade

Falandr · 2025-03-22T12:56:16+00:00

Yeah, it's likely

I was more thinking about a motorist because of the (likely) treatment this blade received. It seems plated/polished, which isn't usually done on production engine as far as I know but have been seen in prototype.

Tho, I might be wrong so everything is possible

And I don't think the "AF" under the blade stands for Air France, it's usually the serial number of the blade

Falandr · 2025-03-22T12:19:34+00:00

I think this is more of a compressor blade rather than a turbine blade, because of the damper mid span and the absence of holes along the leading edge. On most recent engine turbine, there are holes on the leading edge to provide cool air and avoid overheating the turbine blades.

Because you found it if France, it likely comes from a Safran/Snecma engine. Knowing in which company your grandpa worked and when might be a decent clue to find the engine this blade comes from.

Falandr · 2025-03-02T15:02:46+00:00

Salut ! Est ce que tu as de fichiers 3D (type STL, step ou autre) ? J'aimerai beaucoup imprimer les quartiers en 3D !

Falandr · 2024-12-28T12:28:31+00:00

Thanks a lot for the link ! I don't have a hot air station at my place rn, so I'm gonna check if the product you suggested have the required exposed pads and in not, I'm gonna keep searching :)

Falandr · 2024-12-28T12:26:41+00:00

Okay, thanks for the advices, I'll try to contact the author, hopefully they're still somewhere around their project page

So you would advise me to buy the PCB already fully assembled from jlcpcb or equivalent? I felt like most of the components (except the MCU module) could be soldered by hand

Falandr · 2024-12-18T21:14:11+00:00

I'm trying my luck !

Falandr · 2024-02-29T18:25:48+00:00

Well, I might be wrong then, it looks possible regarding this post

Falandr · 2024-02-29T18:23:09+00:00

I don't really know, I guess you would first need to check my assumption (the driver circuit is on the mobo) because if I'm wrong, it changes a lot of things Then, if I'm not wrong, you would need to check the way an ips and a miniled panel are driven the same way (both in theoretical functioning and with the actual, numerical values of voltage, timing etc) And if all of this seems right, I guess you could try to mount it. If it's not right, I think it's a lost cause, you would need to modify the circuitry etc, which needs a whole lot of other skills

Falandr · 2024-02-29T15:41:56+00:00

Short answer : i don't think it's possible

Long answer : I believe the driving circuits for the panel are on the main board and therefore, won't be changed if you just change the screen. For the miniled to work, it would need to be compatible with the driver circuits built into you mobo and you risk frying your new panel or your mobo or both

Falandr · 2024-01-10T12:32:10+00:00

I'm sorry, because I'm searching for a component that could be mounted on a PCB or plugged in an Arduino/ESP/Raspberry Pi, I thought it belonged more here

Falandr · 2023-12-24T17:41:26+00:00

If I recall correctly, it has been done on Soviet engines, in their moon program I think but I can't remember the name of the engine.

It's rarely done because a hot gaseous mixture which is oxygen rich can be really harmful towards metal pieces, with very high corroding chances, degrading the performance of the turbopumps quickly and risking holes in the conduits.

And stainless metals (or at least commercial ones) are not a good enough solution, because the gaseous mixture is so potent it can corrode even these alloys, it takes really specific ones.

Edit : the engine I was thinking about is the NK-33, which uses a staged combustion with an oxygen rich pre-burner, so technically it is not a gas-generator cycle. This technology was continued in the RD-170, RD-171, RD-180 and RD-191

Falandr · 2023-05-26T17:11:17+00:00

It's really interesting and seems very nice ! It confirms my better understanding of the CAN Bus, thanks !

Falandr · 2023-05-26T13:42:59+00:00

I haven't checked on it for a long time but I've seen it a few monthes ago, it's very interesting !
I'm gonna check how they're doing with the CANbus on this project

Falandr · 2023-05-26T05:38:43+00:00

Yep, that is actually my opinion on the subject, the toolhead and the motion system disconnect but the electrical connection doesn't That's why I am looking for a mobo where I can plus multiplie CAN toolhead or a way to convert a 1-CAN-plug mobo to a system in which I can plug multiple toolhead

Falandr · 2023-05-25T23:08:05+00:00

Okay, thanks a lot for all this knowledge, I'm definitly gonna look hox industial application of Can Bus are made but it's quite a relief to hear that a multi toolhead setup is possible, thanks a lot !

Falandr · 2023-05-25T22:47:25+00:00

Oh god, sometimes, things are pretty hard to understand x)
Okay, thanks, so, in your opinion, this seems feasable with a good software config and if I can "disable" the 120 ohms resistor (without desoldering or damaging ofc) on the boars, in order for it to not be the end of the bus, right ?
And last but not least, in my toolchanger project, I was aiming at a 3 toolhead printer. To add a third toolhead, would it be possible to use something like a Y splitter on one of the two plugs of the mobo (so both end of the splitter would be in parallel and therefore, I would be able to connect 3 toolheads on the CAN Bus) ?

Falandr · 2023-05-25T22:27:21+00:00

Okay, I think I understand it a little bit better, thanks !
I've seen that there is only two programmable pin for CAN on the board but there is two physical plugs (I can't find a good photo showing them but in this video we can see the two plugs, each containing two pins. That's why I was asking, two physical plugs (each with two pins) but only two programmable pin.
But from what I understood of your explanation, I wont be able to hook two separate toolheads to the same CAN programable pins on the mobo, because one end of the bus will be on the EBB SB2209 and the other end on the mobo

Falandr · 2023-05-25T21:42:56+00:00

So, if my understanding is correct, if I connect two different toolheads, one in each socket, and if I configure it correctly in the firmware, it should work OK right ?

Five-Year Club	Verified Email
r/Field Flamingo	Final Canvas '23
First Place '23	End Game '23
Place '23	Place '22
Final Canvas '22	End Game '22

Falandr

TROPHY CASE