Build Log: The Manhattan Project

[Avacado]

18 minutes ago, iamjanco said:

 

I hear ya, but I've only got inches to play with

It's ok, you may be small down there but it takes a BIG man to be ok with it.

 

 

[Mr. Fox]

50 minutes ago, Avacado said:

It's ok, you may be small down there but it takes a BIG man to be ok with it.

 

 

It is better to measure in inches rather than centimeters. But, measuring in centimeters gives you a bigger number to work with.

 

 

Edited June 10, 2022 by Mr. Fox

[Avacado]

5 minutes ago, Mr. Fox said:

It is better to measure in inches rather than centimeters.

[Mr. Fox]

7 minutes ago, Avacado said:

Pick a number: 4 in, 10.16 cm or 101.6 mm.  It's not how big numbers are as much as how you use them. 

[iamjanco]

Girth. 

 

 

 

[Avacado]

41 minutes ago, Mr. Fox said:

Pick a number: 4 in, 10.16 cm or 101.6 mm.  It's not how big numbers are as much as how you use them. 

The last thing Jan needs, besides a pump is someone defending his honor. Don't make me get pookie dookie out here. 

[Sir Beregond]

[Bastiaan_NL]

Dang @iamjanco, love the progress!
I also like seeing things like that 12V PCB, reminds me of the control panels at work  

[iamjanco]

14 hours ago, Mr. Fox said:

Maybe the best approach for the 24-pin would be to use an extension and shorten the wires to be only as long as the visible portion and then neatly bundle the original 24-pin cable out of sight. You could also shorten the original 24-pin and bundle all of the wires into a round bundle and use a large sleeve to cover the round bundle of 24 wires so that you are not trying to hide a long cable mess.

Just saw your added edit: yeah, I could do that, but I think I'm going to construct an entirely new, much shorter cable that includes the cap, but not the twisted triplet. I'll use the 16AWG FEP I have on hand for that. I have the other parts I need already as well.

 

3 hours ago, Bastiaan_NL said:

Dang @iamjanco, love the progress!
I also like seeing things like that 12V PCB, reminds me of the control panels at work  

Donkeyshorts! 

 

(that's iamjanco for Bedankt! )

Edited June 11, 2022 by iamjanco

[iamjanco]

Reposting some earlier images in this thread as a recap re. intent (which is always in a constant state of flux). My goals with the Yuelbeast Atlas II chassis include the options of running it independently on its own, as well as making it pluggable such that I will be able to integrate it into the Muffler Bearings portion of the Manhattan Project. 

 

 

 

 

 

 

 

8 hours ago, Avacado said:

The last thing Jan needs, besides a pump...

 

No pump needed. Regular vigorous exercise also does the trick...

 

 

Edited June 10, 2022 by iamjanco

[Sir Beregond]

[iamjanco]

If you're going to do your own cables, it might be smart if you familiarize yourself with the following ( at least the illustrations of what's good vs. what's bad):

 

MOLEX QUALITY CRIMPING HANDBOOK
Order No: TM-638000029 Release Date: 09-04-03
Revision: D Revision Date: 12-23-09 
https://www.molex.com/pdm_docs/ats/TM-638000029.pdf

 

Also see:

 

MOLEX INDUSTRIAL CRIMP QUALITY HANDBOOK
Doc No: TM-640160065 Release Date: 00-00-02
Revision: B Revision Date: 10-16-09
https://media.digikey.com/pdf/data sheets/molex pdfs/tbo quality crimp handbook.pdf

 

Older version of Quality Crimping Handbook 
https://www.shearwater.com/wp-content/uploads/2012/08/qual_crimp.pdf

 

Matt's Tech Pages: Common Wire-To-Board, Wire-To-Wire Connectors, And Crimp Tools
http://www.mattmillman.com/info/crimpconnectors/

 

I shared that info here and elsewhere mostly because of a/the discussion around what makes a bad crimp (e.g., like crimping over paracord, etc.) and what might make a good crimp. Since the docs I shared are actually geared toward making good crimps using "official" crimping tools (which are expensive enough to be out of reach to many AND require special knowledge/experience to use properly), I think the most important info in those docs are the pix illustrating what makes a good crimp, at least through the ATX PCIe 3/4 specifications. 

 

That said, changes were introduced in the new ATX PCIe 5 specification that companies like Molex, TE/Amphenol, etc., have also introduced new crimp pins for (e.g., for 16AWG wire), as well as for their respective connectors and tooling, which involve changes to way these new crimped pins grip wire insulation (which differs somewhat from previous methods). The assumption at this point in time is that crimp pins like these could/might/perhaps must be used in the new GPU PCIe 5.0 Gen5 High Power (12VHPWR) 12-Pin (3.0mm Pitch) Connector, with 16AWG wire. 

 

Pix of an example of what I'm referring to follow (see attached images below).

 

Also see:

 

TechPowerUp: Intel ATX 3.0 16-pin Power Connector for PCIe Gen5 is Smart, Has Four Power-Delivery Variants
https://www.techpowerup.com/292563/intel-atx-3-0-16-pin-power-connector-for-pcie-gen5-is-smart-has-four-power-delivery-variants

 

Tom's Hardware: Nvidia's 12-Pin Power Connector Will Work with Next-Gen PCIe 5.0-Compliant PSUs
https://www.tomshardware.com/news/nvidias-12-pin-power-connector-will-work-with-next-gen-pcie-5-psus

 

Amphenol Minitek® Pwr CEM-5 PCIe® Connector System
https://www.amphenol-cs.com/product-series/minitek-pwr-cem-5-pcie.html

 

Hand Crimp Tool for Mini-Fit Jr. Male and Female Crimp Terminals, 16 AWG
https://www.molex.com/molex/products/part-detail/application_toolin/2002182200

 

Hand Crimp Tool for Mini-Fit Jr. Male and Female Crimp Terminals
Doc. No: ATS-2002182200 Release Date: 11-30-17
Revision: E Revision Date: 05-23-22
https://www.molex.com/pdm_docs/ats/2002182200-000.pdf

 

 

Attachments:

 

 

 

 

 

 

 

 

Edited June 11, 2022 by iamjanco

[iamjanco]

So if you've been following the latest purchases thread, you might have seen my post about the steel and sandpaper that's supposed to be delivered Tuesday. I've also been checking out buffers/polishers (good ones, like Jet, Baldor, etc.), as a means to take my shiny metals to their next levels, but decided to first give the process a try using the motor from a cheap bench grinder I've already got. So, I'll order 5/8 spindles for it, as well as some spin on buffing and polishing disks.

 

I've already got buffing and polishing compounds on hand which I've been using on my copper, stainless, and aluminum. That's been hard labor until now though. 

 

Here's the cheap motor I mentioned. It does work, but is not dual speed (would have liked to have ~half that speed available as well):

 

 

Edited June 19, 2022 by iamjanco

[iamjanco]

Ordered some things; mostly to try out on the motor in the previous post:

 

 

 

 

 

[Bastiaan_NL]

I like shiny things!
What are you going to polish?

[iamjanco]

19 hours ago, Bastiaan_NL said:

I like shiny things!
What are you going to polish?

 

Mostly metal flats/bar made of steel, aluminum, or copper that i use in my builds.  I'd like to be able to eek a true mirror finish out of something like the KPE backplate I did a while back:

 

Edited June 26, 2022 by iamjanco

[schuck6566]

14 hours ago, iamjanco said:

 

Mostly metal flats/bar made of steel, aluminum, or copper that i use in my builds.  I'd like to be able eek a true mirror finish out of something like the KPE backplate I did a while back:

 

Don't know if I mentioned it,but that back plate you made for the card is awesome

[Mr. Fox]

1 hour ago, schuck6566 said:

Don't know if I mentioned it,but that back plate you made for the card is awesome

Yes it is. I keep waiting for him to PM me with a price for it, but I'm thinking maybe I shouldn't hold my breath on it.

 

I think just about anything he uploads a photo of is something amazing. Craftsmanship of his caliber is very rare these days. And, that steampunk motif is pretty sweet.

Edited June 26, 2022 by Mr. Fox

[iamjanco]

I'll have you know I don't blush easy; but when I do, I blush all over. 

 

Thanks guys. 

 

[Avacado]

10 hours ago, Mr. Fox said:

Yes it is. I keep waiting for him to PM me with a price for it, but I'm thinking maybe I shouldn't hold my breath on it.

 

I think just about anything he uploads a photo of is something amazing. Craftsmanship of his caliber is very rare these days. And, that steampunk motif is pretty sweet.

 

9 minutes ago, iamjanco said:

I'll have you know I don't blush easy; but when I do, I blush all over. 

 

Thanks guys. 

 

 

BROMANCE!

 

[iamjanco]

latent fantasies, eh? 

 

does the SO know?

[iamjanco]

On 19/06/2022 at 20:59, iamjanco said:

Ordered some things; mostly to try out on the motor in the previous post:

 

 

 

 

 

 

Results of my initial testing. The piece of stainless in the images was in pretty rough shape before I tried out the buffing and polishing pads, and their respective compounds. I'll be using that piece of metal as the base for a dual ddc set of pumps that I've got going in the Atlas II:

 

 

 

 

While I'm more or less satisfied with the test results, I think for my purposes the buffing/polishing might be more supplemental in nature to the multi-phase sanding process (through as much as 5000 grit) I've already been using. That is of course if one is to achieve that unicorn sort of mirror finish.

 

 

[Avacado]

12 minutes ago, iamjanco said:

 

Results of my initial testing. The piece of stainless in the images was in pretty rough shape before I tried out the buffing and polishing pads, and their respective compounds. I'll be using that piece of metal as the base for a dual ddc set of pumps that I've got going in the Atlas II:

 

 

 

 

While I'm more or less satisfied with the test results, I think for my purposes the buffing/polishing might be more supplemental in nature to the multi-phase sanding process (through as much as 5000 grit) I've already been using. That is of course if one is to achieve that unicorn sort of mirror finish.

 

 

Looking good Jan. Are you going to have active cooling for the base of those dual DDCs?

[iamjanco]

25 minutes ago, Avacado said:

Looking good Jan. Are you going to have active cooling for the base of those dual DDCs?

Thanks. I'll likely rig up some sort of funneling shroud coupled with a smaller fan (like this) that blows air across those fins. I'm also thinking I could add a channel for that fan and add thermistors to the surfaces of the two pump bases that would be used to monitor those temps and control that fan's speed. 

[Avacado]

33 minutes ago, iamjanco said:

Thanks. I'll likely rig up some sort of funneling shroud coupled with a smaller fan (like this) that blows air across those fins. I'm also thinking I could add a channel for that fan and add thermistors to the surfaces of the two pump bases that would be used to monitor those temps and control that fan's speed. 

Perfect. I have a few of those 25mm Noctuas. They are good fans.