Ultimate 4U 500mm Chassis - Who is interested?

[hifibluedevil]

I sent an email earlier with the order details attached, asking about my mistake. So, 4U/500 comes with regular heath sinks that needs to be drilled and tapped, got it.

 

[hifibluedevil]

Pico;
I am still interested in a 4u/500 with UMS heath sinks, if there is room to add one more person.

 

[2 picoDumbs]

The more the merrier.

No worries.

 

[2 picoDumbs]

It all depends on the price and timing. I'm waffling between a 4U / 300mm and 4U / 400mm chassis for my F6 build. 4U / 500mm seems like crazy overkill, but if the price is right then I could be convinced.

Regards.

If you have no interest in using it for building any other future project then 4U x 400mm would be adequate. To get the mosfets centred on the heatsinks you will need to drill and tap some additional holes.

If you jump on board this project, the heatsinks correct the F6 issue, as well as more options to build other amps into the future.

 

[2 picoDumbs]

The standard 4U 500 chassis is already available on store but it does not include UMS heatsinks. For the special "PicoUMS" chassis we are still waiting for the final specs to prepare a quotation

Hi Gianluca
Do I need to add the construction/assembly holes to the drawings shown so far, or is this something you can easily add to the drawing? eg I have not added the mounting holes of the bottom/top plate, holes to mount brackets on the heatsinks etc.

What file format do your require eg step file?

 

[Gianluca]

Yes that is totally fine as we usually customize panels that already have these holes.


2D DXF/DWG drawing would be perfect

 

[gary s]

Hi pico, is this going forward or is it all getting too hard and complicated?

 

[2 picoDumbs]

I will do more tomorrow.
Might be able to finish it.

 

[2 picoDumbs]

Yes that is totally fine as we usually customize panels that already have these holes.


2D DXF/DWG drawing would be perfect

1) What are the dimensions of the 4U rear panel ?

2) At the moment I have the 4U heatsink showing mounting holes positioned on a single solid 4U x 500mm section heatsink, should I redraw this as it would appear on a split 4U x 250mm section heatsink?

 

[2 picoDumbs]

Hi pico, is this going forward or is it all getting too hard and complicated?

Getting my ars3 back into gear.

Been overwhelmed with work matters.

 

[Gianluca]

1) What are the dimensions of the 4U rear panel ?

2) At the moment I have the 4U heatsink showing mounting holes positioned on a single solid 4U x 500mm section heatsink, should I redraw this as it would appear on a split 4U x 250mm section heatsink?

1) 373x165


2) Don't worry about the mounting holes as these will already be there once we drill your heatsinks. The only holes you need to draw are the extra ones you want us to make

 

[2 picoDumbs]

Do people prefer horizontal mounted binding posts or vertical like FirstWatt?

 

[TungstenAudio]

I have a slight preference for horizontal mounted binding posts, due to ease of access from above the amplifier. Vertical would be Ok. Looks nice that way.

 

[2 picoDumbs]

I am happy either way, maybe a slight preference for horizontal.

First 3 people to have a definite preference, we will go with that result.

 

[gary s]

Definitely horizontal mounting for me for the same reason as TungstenAudio.

 

[2 picoDumbs]

let's go with that then

 

[2 picoDumbs]

Pilot Hole Spacings - Back Panel

Is everyone happy with the spacing/positioning?

 

[2 picoDumbs]

2) Don't worry about the mounting holes as these will already be there once we drill your heatsinks. The only holes you need to draw are the extra ones you want us to make

Do I need to draw them on a split 250mm heatsink?
I have drawn them as they would appear on a solid single 4U x 500mm heatsink.

 

[2 picoDumbs]

Pilot Hole Spacings - Back Panel II

Or more like these spacings?

 

[TungstenAudio]

Probably back panel II