[time-nuts] Excellent equipment rack

[paul swed]

Have used older 2 post racks for years. Have 10 in service and like them.
The older ones had been available cheap and are very sturdy/heavy. Like
Perry I have done the wood base. Longer out the back then the depth of
equipment for stability.
If you do find older 2 post racks there are 2 types. The EIA screw thread
and telco thread.
Enjoy.
Paul
WB8TSL

On Tue, Jun 11, 2019 at 9:00 AM John Ackermann. N8UR <jra at febo.com> wrote:

> Star Case (https:www.starcase.com) is  U.S. company (in Indiana)  that
> sells similar open-frame rack kits for very reasonable prices.  I have
> several and have been very pleased.  They are available whatever height you
> want, with depths of 20 to 30 inches.  They have lots of accessories to
> trick out your rack.
>
> As Perry ssid, they are quite wobbly but they have various cross braces
> available that will stiffen them up.  I have hundreds of pounds in a 6 foot
> one and it's rock-stable.
>
> They ship broken down in a flat box plus tall cardboard tube for the
> vertical.  Assembly is bssically like an Erector Set.
>
> On Jun 11, 2019, 7:00 AM, at 7:00 AM, Perry Sandeen via time-nuts <
> time-nuts at lists.febo.com> wrote:
> >Yo Bubba Dudes!,
> >Needing to go vertical with my test equipment I went bottom feeding for
> >an equipment cabinet on ebay.
> >To make a long search story short: they were way too expensive, too
> >heavy to ship and too far away for pickup.
> >So I kept searching and finally came across what was listed as *42U
> >Four Post Open Frame Server Data Rack 19 inches.  Adjustable depth 23
> >to 32 inches.ebay number 152319524877.Sold by Raising Electronics for
> >US $188 and free shipping.
> >I was unsure what a *U* height meant put it seemed tall enough so I
> >bought one.
> >I was a little apprehensive about this being a Chinese metal product.
> >I was very pleasantly proven very wrong.
> >Although it only comes with a picture of an assembled unit it has been
> >engine ed so there is no way you can assemble improperly. The four
> >posts are all equal and can be installed with any end up or down and
> >the top and bottom brackets will fit.  It comes with the exact 50 M6-20
> >head bolts and nuts needed for assembly.  The nearest SAE equivalent
> >bolt size is 1/4 20 x 1/2L which I purchased to hold L shelf brackets
> >to the frame.
> >I set the depth of mine to 26 inches so my 5370's fit well and I had
> >space for both power and BNC cables to be inside the frame.
> >
> >This rack is designed to be bolted to the floor.  Wanting to be able to
> >move it, I cut a piece of 3/4 inch plywood a little longer and wider
> >then the base footprint and installed 4 inch tall Harbor Freight swivel
> >casters on the four corners for ease of movement in any direction, even
> >on floor carpeting.  After assembly it was 6 ft 9 inches tall.
> >
> >Now this being a bolted together *skeleton frame* it is prone to
> >twisting and or becoming a parallelogram sideways.  To prevent
> >twisting, I fitted a plywood board on the top bolted to the top front
> >and rear angle pieces.  To prevent a side-to-side movement required an
> >8 inch wide piece of scrap aluminum plate bolted to the rear vertical
> >posts.  This is easy to do as there are a plethora of precision spaced
> >holes available.
> >There was some very serious thought given to the vertical post design.
> >It has six 90 degree folds done in such a way that the inner edge on
> >each outer side gives a 19 inch opening.
> > However behind it is as inner fold where one can install recessed L
> >shaped brackets. Now the inner fold is about and inch narrower than the
> >outside edge.This allows making a wider shelf that can *float* on top
> >the brackets but can't slide out either end.
> >This was very useful when configuring the instrument arrangement.
> >I also found that with the bottom shelf being just 6 inches above the
> >floor I was able to install more equipment in the same vertical space
> >than in my previous normal sized equipment cabinet.
> >Another bonus with this type of configuration is that it's easier to
> >keep the equipment cool and it's much lighter.
> >Regards,
> >Perrier
> >
> >
> >
> >
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