Topic: Gauging interest in a 4U GPU mining case - Now just a drop-in bracket - page 2. (Read 6104 times)

The chassis front intake fans are attached directly to the extrusions (in the model, the two horizontal beams at the tail-end of the GPUs).  The location of the beam that the GPU mounting brackets are attached to can be positioned anywhere along the depth of the chassis.  So if your GPUs aren't too long, there will be enough room to re-position the row of middle fans that are included with the chassis.  Note also that the GPUs could be mounted with the brackets at the front of the case i.e. rotate the GPUs 90-degrees.

The bracket is wedged-in into the chassis, so permanently securing it to the chassis won't be absolutely necessary.

The risers should be loosely attached to the extrusions (otherwise the insulation material might be punctured) via the supplied nuts that will go into the slotted extrusion, which should allow the chassis to be rotated onto its side.

Small quantities will be ready to ship next week.

What discount can you offer on 50+ or 100+ ? PM me, i might have an idea for cooperating on mining server chassis.

Where is the FAN mounted?  Behind the GPUs?  How are these rails attach to the case?  Do we still need to drill holes thru the case to mount them?   The place where riser rest on, is it flat for resting riser or is there holes where you can mount the riser on to it to secure the GPU even more so you can do vertical stacking of these 4U server vs just horizontal racking?

P.S Yes you can buy the Rosewill 4U and do the mod yourself for cheaper.............however, it's a lot more tedious work and won't be as good as this solution.  This solution will cut your total install time a lot.  Very excited about this and hope to get even more detail info.   When is this available for shipping and is it possible to put the FAN mount where the GPU front is mounted?  This way it can pull the GPU heat straight out regardless of regular style GPU or front blowing reference style design. 

Here's the final design for the GPU drop-in mount.  It supports the GPUs and front intake fans of a deep Rosewill server chassis.  $50, plus shipping from New Hampshire.  Discounts of 10% and 15% for orders of 2x or 5x+, respectively. I'll start a new thread in the marketplace soon.

EDIT: Already had to make a revisions to the design:

Hi rocky

I appreciate your ways of relating to others, and I respect your point of view.

I completely understand the personal needs, but in my experience (*) such kind of modifications presents a very high cost in materials, personal time, tools and finally also reliability.

(*) Here's a project of mine, dated february 2014:
http://www.xtremehardware.com/forum/showthread.php?t=43454



2 years ago I wanted to make the same, to modify a server chassis and produce something useful, to mine litecoins with VGAs.

What people usually don't consider it's the final cost of time and tools, other than the necessary accessories to make such modifications.

It depends by a lot of factors, for example the tipology of product that you want to create, but if you go on for a serial production, a lot of things are different:



Such kind of machinery costs more than 600.000 EUR, and it needs 2 skilled workers full time.

The design phase it's very difficult to quantify in USD, I can tell you that I've got 8 different prototypes and I am going on for the final 2 (I hope). It've taken 9 months since now, 3 different specialists and a couple of projects. Seeking for an high quality of the products that you deliver to the customers, means that the latter won't have any issue, or simply will be very satisfied with your product. My aim is to produce the best unit in the market, and we're almost there. What you've seen in my signature it's just a fraction, absolutely not representative of the final product.

If you want to modify a product for personal use or limited batches I wish you the best luck, but I can assure you that it takes a lot of time if you use a more professional approach

Naw, your reading into this wrong. No one is denying the cost of prototypes, trials, etc.

What everyone is saying is "why recreate the wheel when you could just modify an already existing one." hence the links, and descriptions on how to bring the price down. Why pay 3x the price for a "recreated" design when someone could easily modify a current design DIY?

I know your bias because you went through the whole process and thats why your product is so expensive, I get that, but at this point there are so many chassis available that just need a few modifications and tweaks to make it work, that would cost less than recreating from scratch and overall, cost less to the consumer. I don't know if margins would be less, equal, or greater but modifying is what people want.

I think spotswood is going to nail it with the insert. It should be simple and not have to be reproduced at costs people are not willing to pay for. 

Did you remove the internals of this case? Is it screwed in or welded? Does it need just unscrewing and actually cutting metal>
Thank you

I am very interested in your drop-in frame. Price and availability please.

Thanks.

Kind of cool in my opinion but it's a little expensive and it's probably heavy and costly to ship internationally.

@Spotswood

Got any picture how the drop-in frame would look like?

Based on the feedback, I've decided to offer a small "drop-in" frame that would go into an existing server case to securely hold the GPUs (and possibly some fans as well).  

Sketchup: http://www.sketchup.com/download/all

So you're telling me that this cheap, and short, chassis is capable of inserting 7/8 30cm VGAs with a proper cooling and components installation?

Other than that, the cost of the tools, the human work, the taxations, the shipments, the insurances, the prototypes, the 2D/3D projects, the commissions, the trials (etc ,etc) it's 0?

I repeat, you guys seems to have absolutely no clue about the real, final, costs of such objects

If you don't mind, what software did you use to make the model? It looks very nice.

Yep this is what I did, I had a few metal cutting tools and what I removed from that exact case I was able to reuse to make a bar and few other things to mount the gpus. works perfectly fine.

Hate how a few ppl are calling us "haters," when in fact this is a thread to "gauge interest" (with the hope of feedback), if you don't want truth, then don't post.

Buy those cases, do some custom mods and resell. easy day.

It costs around 20 bucks over $79.99

https://www.amazon.com/Rosewill-Server-Chassis-Rackmount-Metal/dp/B0055EV30W/ref=sr_1_1?ie=UTF8&qid=1480637836&sr=8-1&keywords=4u+case

you guys have really no clue how much these kind of solutions costs (prototypes, components, logistics, human work, adapters, instruments, working tools, drills, etc, etc)

60 bucks?

Yeah, build it for yourselves. Good luck with that

25x17.5x7-inches

What is the basic dimensions of this rack?