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Old 30th March 2012, 08:31 AM   #81
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Quote:
Originally Posted by jacco vermeulen View Post
Says who, the Italians ?
Apparently yes. It would appear in your answer that you can die cut any larger gauge alum but we're having these done for us and so this is unarguably something we cannot insist on, unfortunately.

Anyway, we are working to make this as user friendly as possible, one of the very reasons this feedback thread was created so we can address your needs more accurately.


Quote:
There's not much science in my answer (post77).
There is truth and no exaggeration in my answer.

I am not assuming any exaggeration in your answer but was hoping to find something (in it) to justify the increase in cost this endeavor will take up.



Quote:
I cannot and will not argue about the intelligence content.
Hope your not getting personal.

Then let it be so. Again, this is just for justifying the extra cost for an all aluminum chassis. Nothing personal in that.

We're trying to hear everything and work on that so it becomes a win/win scenario for everyone in the end.
 
Old 30th March 2012, 11:13 AM   #82
Jason is offline Jason  Australia
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See below:

* The standard steel ventilated cover on a chassis (pictured: black)
* A super ventilated steel cover (pictured: black)
* The standard "4 row" alu ventilated cover (pictured: brown)
* A special edition "6 row" alu ventilated cover that they will do for us if we order alu chassis (pictured: brown)
Attached Images
File Type: jpg steel.jpg (87.1 KB, 522 views)
File Type: jpg alu.jpg (159.4 KB, 512 views)
File Type: jpg alu super vent.jpg (66.1 KB, 506 views)
File Type: jpg lavoriadisegno015_0001.jpg (47.3 KB, 514 views)

Last edited by Jason; 30th March 2012 at 11:19 AM.
 
Old 30th March 2012, 11:28 AM   #83
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Quote:
Originally Posted by JojoD818 View Post
Apparently
Standard bottom of the Modushop cases is 1.2mm steel plate.
They also do punched 2mm aluminum panels.

2mm aluminum has 50% better bending resistance than 1.2mm steel.

( deflection : P*L^3/3*E*I , tensile modulus E (steel) is 3 times E (aluminum) , I = W * T^3/12, W for width and T for thickness )
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Last edited by jacco vermeulen; 30th March 2012 at 11:33 AM.
 
Old 30th March 2012, 11:50 AM   #84
Zen Mod is offline Zen Mod  Serbia
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bloody engineer

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Old 31st March 2012, 01:48 AM   #85
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Quote:
Originally Posted by jacco vermeulen View Post
Standard bottom of the Modushop cases is 1.2mm steel plate.
They also do punched 2mm aluminum panels.

2mm aluminum has 50% better bending resistance than 1.2mm steel.

( deflection : P*L^3/3*E*I , tensile modulus E (steel) is 3 times E (aluminum) , I = W * T^3/12, W for width and T for thickness )
Yes those are their standard panels, but this requests are not their standards anymore so they need to adjust.

It's not just the bending they are concerned of. Plus either they'd do it or not is yet to be known.

Thank you for the formulas, I haven't seen those in many years since my Strength of Materials class in college.
 
Old 31st March 2012, 09:33 AM   #86
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by Zen Mod View Post
bloody engineer

What's wrong with understanding the mechanics/science of the assertion?

And why should you be allowed to make personal remarks about other Members?
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Old 31st March 2012, 09:36 AM   #87
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by JojoD818 View Post
........... the formulas, I haven't seen those in many years
we don't need to remember the formulae.
It's remembering the science behind the formulae that is more important.
A small increase in thickness makes for a big increase in both stiffness and strength.
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Old 31st March 2012, 12:01 PM   #88
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Quote:
Originally Posted by SRMcGee View Post
pixpop:

The HiFi2000 front panels are removable. I've used Front Panel Express on almost all of my projects, and have shipped HiFi2000 10mm front panels to them for processing. Here's an example.

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hello. i see you have the wastOfLight ON LED. do you want to know what to do, so you can get standby LED insted?
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Old 31st March 2012, 06:42 PM   #89
Lavcat is offline Lavcat  United States
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Quote:
Originally Posted by AndrewT View Post
What's wrong with understanding the mechanics/science of the assertion?

And why should you be allowed to make personal remarks about other Members?
I had thought Zen Mod made the response about engineers in jest. For my own experiment I took aluminum panels from the Hammond enclosure I am working with, suspended them between a pair of 12" x 3" x 1 1/2" steel parallels, and stood on them.

I weigh approximately 165 pounds (12 stone or 75 Kilogram). The panels did not bend. I thought about putting a dial gauge on the panels but did not want to risk scratching them. (Or breaking the dial gauge, or falling over it.)
 
Old 1st April 2012, 04:35 AM   #90
Jason is offline Jason  Australia
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FYI, the aluminum covers are 3mm not 2mm and the steel is 1.25 not 1.2.

Thanks for everybody's feedback. We have added a half width chassis, aluminum chassis (6 rows of vents as pictures above), and a solid aluminum cover as options. Please let us know specifically what you are interested in, and we will put together a final product offering.

Link: diyAudio Chassis Survey

Please let me know if I've missed anything obvious or there are any problems with the survey, here.

Again, many thanks for everyone's feedback and constructive criticism!

Last edited by Jason; 1st April 2012 at 04:40 AM.
 

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