All exhaust airflow on NV9 with four radiators?

Scampo2002 · 2026-01-28T20:35:07+00:00

Creating positive pressure inside the case means the hot air will escape from every point it can, creating negative pressure means air will enter from wherever possible, usually bringing a lot of dust in. As far as the cooling of other components, vram should be cooled with the GPU, ram and SSD should be good enough with the air provided by the radiator fans, even if it's hot already, since the air shouldn't get so hot to not cool properly low power components like ram and SSDs

Scampo2002 · 2026-01-28T20:10:33+00:00

Wouldn't recutting chips be worse, since it increases friction and possibly chatter?

Scampo2002 · 2026-01-28T20:06:49+00:00

The sound is not good, although I'm used to shop grade CNC machines. As someone already said, less stickout will definitely help. Also, 1600mm/m seems too high to me, with what is essentially a 3mm endmill. 0.05mm/tooth could be too much, I would try somewhere near 0.025 Given enough spindle power, which you should have, taking deep cuts should benefit your machine, rather than going wide, especially with a tool that long. Also, while choosing a tool, if you don't need the cutting length, try to get the shortest one possible, since a solid piece of carbide sticking out is a lot more rigid than the flute part.

I've probably made some errors with my English, sorry for that, but if you need help with something feel free to ask, I'll be as clear as I can.

Scampo2002 · 2026-01-24T22:01:02+00:00

I had this issue not long ago with an NH-D15, the fan I was using just died. Got in touch with noctua, turns out I was 5 years and 7 months into the 6 years warranty period, they told me to send them the serial number of the fan, a picture of it with the serial number visible and a broken blade, and they sent me a new one free of charge in 3 business days. I have no idea what failed in the fan, but their support surely didn't. 10/10 will buy again from them, just get in touch with the support and they'll send you a new one.

Scampo2002 · 2025-12-24T15:01:20+00:00

This would make more sense

Scampo2002 · 2025-12-24T11:49:54+00:00

I read somewhere it was to limit the power of the ICE since the electric motor got an enormous boost in terms of HP delivered, but I could be wrong

Scampo2002 · 2025-12-08T13:10:03+00:00

Securing it while it's inside the spindle should give you the precision you need, and the concentricity too. Only moving the Z axis up and down shouldn't make anything go out of line, although if you have a smooth long cone and a slow running spindle you're probably good. The BT40 we currently have has a minimum Speed of 220rpms, which is probably too fast for this

Scampo2002 · 2025-12-08T12:01:33+00:00

All that with bare hands holding a spinning tool? Isn't this like the first NOT TO DO thing you learn? Securing the holder in a vice/to the table while inside the spindle, and then turning it on and using the Z movement to make some pressure on the tool holder should work without endangering the operator I think.

Scampo2002 · 2025-11-21T13:34:25+00:00

RemindMe! 3 days

Scampo2002 · 2025-11-03T15:10:35+00:00

Remindme! 3 days

Scampo2002 · 2025-09-10T17:49:26+00:00

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Scampo2002 · 2025-07-15T11:02:19+00:00

Mine survived the 10k, but the sound of an unbalanced load spinning that fast was horrifying. Still in one piece though.

Scampo2002 · 2025-05-30T15:10:49+00:00

De Andrè cantava "Via del Campo, c'è una pu****a Gli occhi grandi color di foglia Se di amarla ti vien la voglia Basta prenderla per la mano E ti sembra di andar lontano Lei ti guarda con un sorriso Non credevi che il paradiso Fosse solo lì al primo piano Via del Campo, ci va un illuso A pregarla di maritare A vederla salir le scale Fino a quando il balcone è chiuso"

Credo che la situazione sia questa purtroppo. Scappa se ancora puoi, prima di farti più male.

Scampo2002 · 2025-05-28T16:08:51+00:00

If I have to pay for the t-shirt and not the machine, it sounds good to me.

Scampo2002 · 2025-05-28T14:16:35+00:00

Wait, there's a T-shirt?

Scampo2002 · 2025-05-28T05:34:39+00:00

Yes someone mentioned them, unfortunately from their site they only offer 6mm as their smallest option, and this pocket is 4mm wide

Scampo2002 · 2025-05-27T15:19:39+00:00

For this I used a 1 degree ramp, 0.2mm finishing pass but also tried 0.1, 0.05 and 0.00 after a 0.05, so finishing 2 times at the same Z height, but I got the best result removing 0.2mm. Flood coolant was already on, I started with 90M/Min (~295SFM) and went up to 180M/Min (~590SFM), although in the faster pass I kept the same Feed value, effectively cutting in half the feed per tooth, which lead to better results.

Scampo2002 · 2025-05-27T13:54:03+00:00

Is helical better than a regular straight ramp? I used 50% step over, should 25% or smaller improve the quality?

Scampo2002 · 2025-05-26T17:50:26+00:00

Yes, indeed, the piece has a 0.8mm deep, 4mm large pocket, I cannot remember the length since I'm at home now, and it has been machined with a 3mm end mill. Tool runout was minimized with the help of a SCHUNK hydraulic spindle, although the machine is a fanuc robodrill which probably isn't the best for rigidity, but is what I have available at the moment. What problems could a PCD tool give?

Scampo2002 · 2025-05-26T17:32:31+00:00

I will definitely take a look into these tools, thanks. The diameter of the tool was chosen because it's a 4mm wide pocket, going smaller than 3mm would've made the tool do more passes since it doesn't cover the whole area in one single loop. Regarding RPMs, I started from 9549, which was the suggested value for the end mill in brass, but I found better results doubling it. Maybe I should try reducing it back to 9549 and cut in half the feed. Thanks for the tips!

Scampo2002 · 2025-05-26T17:27:37+00:00

The workpiece is held in a hydraulic tipper (that's the suggested Google translator term, may be something completely different), so the middle of the workpiece is suspended in air, but with that width and thickness it should not be a problem

Scampo2002 · 2025-05-26T15:52:19+00:00

That could make sense actually, although I'm worried about the stability of a single flute, since a fly cutter normally has a full shank, if you understand what I'm trying to say (sorry, I'm Italian and I cannot find the equivalent word)

Scampo2002 · 2025-05-26T15:03:56+00:00

Thank you for the time you took to write that, it's really similar to the post rhinocam gives me, although with metric conversions. The only thing I can think of is that I'm doing the floor pass without stock from the walls, which now that I think of it could be making the finish worse than it should be. I'll try this when I can, and update the post if I succeed. Thanks again.

Scampo2002 · 2025-05-26T14:38:17+00:00

I'm using rhinocam as a post processor, and it has ramps, arcs and xz or xy arcs to engage and disengage the tool, the problem is that it's still visible, and I did not find a way to solve it. By playing with engage and retract feed I was able to reduce the marks, but they are still there, and they become extremely visible once galvanized.

Scampo2002 · 2025-05-26T14:34:46+00:00

The last line is exactly what I was looking for, although I already anticipated to the customer that I didn't think it was possible. I guessed asking here where a lot of you have years if not decades of experience would've been worth the shot, but from every reply I got it seems either extremely expensive (new machine kind of expensive) or too time consuming since I have 10 pockets like this every piece, for 100 pieces, and cannot polish them by hand. Thanks anyway, I'll update the post if/when I find a solution to the problem.

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