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#26 2015-07-13 16:19:39

MJ313
Member
Registered: 2014-09-23
Posts: 498

Re: Those Q700 feets

That dude knows his feets! I smell a subcontracting opportunity... or maybe that's just burning rubber tongue

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#27 2015-07-13 16:28:43

TheWhiteFalcon
Member
Registered: 2015-04-27
Posts: 504

Re: Those Q700 feets

When it's out and on I keep it vertical; airflow is fine.

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#28 2015-07-14 04:56:09

jt
Member
From: Bermuda Triangle, NC USA
Registered: 2014-05-21
Posts: 1,408

Re: Those Q700 feets

mcd, could you measure the thickness of both kinds of feets? As compared to the ridges, they look to be about 15%-20% higher.

The ridges are likely there to ensure minimum airflow for cooling. The IIcx and IIci didn't have cooling vents on the bottom/side, so they wouldn't burn up like a Q700 might. That handily explains why the feetsblocks are molded into the Q700's case, despite them making it unsightly if oriented horizontally. Q700's a tower only design. Losing the add'l height provided by feets/HCMs probably isn't critical. In HVAC or Dust Collection, airflow reduced by such a percentage is not insignificant, especially when a 90 degree turn is involved.

Last edited by jt (2015-07-14 14:39:15)

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#29 2015-07-14 12:22:38

MJ313
Member
Registered: 2014-09-23
Posts: 498

Re: Those Q700 feets

Quote came in at $350. I don't know what 'ballpark' is for this project, but that ain't it. So on to other options...

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#30 2015-07-14 14:27:56

jt
Member
From: Bermuda Triangle, NC USA
Registered: 2014-05-21
Posts: 1,408

Re: Those Q700 feets

Cart->Horse: a suitable material that can be colored to match needs to be identified and tested before production methods are explored. Modeling/patternmaking and then tooling would be the third and fourth steps.

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#31 2015-07-14 14:45:52

MJ313
Member
Registered: 2014-09-23
Posts: 498

Re: Those Q700 feets

Nothin' wrong with hitting on multiple fronts at the same time- getting a quote for the scan really was the lowest hanging piece of fruit.

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#32 2015-07-14 15:51:11

jt
Member
From: Bermuda Triangle, NC USA
Registered: 2014-05-21
Posts: 1,408

Re: Those Q700 feets

Agreed about the fruit availability thing, nothing wrong with it, but it's still a matter of feasibility of the overall project. wink

Materials choice for an application is almost always the first step after conceptualization. Note the hollows in the feets, could be to save materials, reduce cooling time in the mold/cycle time on the injection molding process, dictated by material properties or even to keep it mooshy enough to relieve strain on the joint between semi-cylinder and base for installation/removal .  .  .

.  .  .  or all of the above.

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#33 2015-07-14 19:29:03

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 973
Website

Re: Those Q700 feets

Okay, here's some more feet images (sounds like a fetish site all of a sudden)

q700feet_4.jpg
q700feet_5.jpg
q700feet_6.jpg
q700feet_7.jpg

And now with the foot from a IIci

q700feet_8.jpg


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#34 2015-07-14 19:38:33

uniserver
Member
From: Sf, Mi
Registered: 2014-05-15
Posts: 956
Website

Re: Those Q700 feets

thank you for doing that Dylan!


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#35 2015-07-14 20:41:23

bbraun
Member
Registered: 2014-05-29
Posts: 1,064
Website

Re: Those Q700 feets

I have no feet on my machines (like, pretty much any machines), but here's a first stab at a model based on the pictures:
q700foot.png

Anyone can feel free to tweak it, it's using OpenSCAD and here's the file: q700foot.scad

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#36 2015-07-14 22:56:35

bbraun
Member
Registered: 2014-05-29
Posts: 1,064
Website

Re: Those Q700 feets

Bah, sorry guys.  My internet connection is down, so the image and links will be broken until I get it figured out.
But, I broke out the Q700 and the calipers and updated the model based on where the foot should match up to.  I printed out one model, and it was off by a mm or so in a couple spots.  Updated the model and printing again, and maybe I'll have a workingish model by the time my tubes are fixed.

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#37 2015-07-15 00:03:50

techknight
Member
Registered: 2014-05-22
Posts: 452

Re: Those Q700 feets

wonder if you can get a chunk of rubber that color, and just CNC the thing?

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#38 2015-07-15 00:11:50

MJ313
Member
Registered: 2014-09-23
Posts: 498

Re: Those Q700 feets

bbraun wrote:

Bah, sorry guys.  My internet connection is down, so the image and links will be broken until I get it figured out.
But, I broke out the Q700 and the calipers and updated the model based on where the foot should match up to.  I printed out one model, and it was off by a mm or so in a couple spots.  Updated the model and printing again, and maybe I'll have a workingish model by the time my tubes are fixed.

Geez, you guys are awesome. Thanks bbraun and mcdermd!

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#39 2015-07-15 00:13:33

uniserver
Member
From: Sf, Mi
Registered: 2014-05-15
Posts: 956
Website

Re: Those Q700 feets

thanks man!  super awesome


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#40 2015-07-15 01:15:20

bbraun
Member
Registered: 2014-05-29
Posts: 1,064
Website

Re: Those Q700 feets

Ok, tubes are back, updated design:
q700foot3.png
q700foot.scad

This isn't quite perfect, but it's pretty close.  A little sanding here and there, and it fits well.

IMG_0162.JPG
IMG_0161.JPG

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#41 2015-07-15 01:22:24

MJ313
Member
Registered: 2014-09-23
Posts: 498

Re: Those Q700 feets

!!! That's fantastic! big_smile yikes

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#42 2015-07-15 02:54:20

LCGuy
Administrator
From: Sydney, Australia
Registered: 2014-05-13
Posts: 822

Re: Those Q700 feets

That is brilliant!

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#43 2015-07-15 03:17:50

jt
Member
From: Bermuda Triangle, NC USA
Registered: 2014-05-21
Posts: 1,408

Re: Those Q700 feets

Damn betcha! wink

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#44 2015-07-15 03:20:36

uniserver
Member
From: Sf, Mi
Registered: 2014-05-15
Posts: 956
Website

Re: Those Q700 feets

DUDDDDDEEEEEEA!


#I Re-Cap √Mac √NeTX √Amiga Boards - A/B - PSU# (MacCaps.com)  Modern SCSI HD's - For Old Macs - Pre Cfg'd - 10k RPM! 73gb!! $50 + free shipping  -- Mac 128K Re-Ram kits (16 Chips) $35 + shipping, Floppy Issues?-> Bourns Filter Solution 128k - SE/30, $16 + shipping

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#45 2015-07-15 03:22:46

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 973
Website

Re: Those Q700 feets

On the original, the tab that engages the bottom of the case is a triangle/arrow shape on one side so that it wedges inside the case.


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#46 2015-07-15 03:22:51

uniserver
Member
From: Sf, Mi
Registered: 2014-05-15
Posts: 956
Website

Re: Those Q700 feets

so what do you estimate your cost to be per man…   i like stuff like this.


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#47 2015-07-15 03:44:44

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 973
Website

Re: Those Q700 feets

Oh, sorry, I failed to mention those are 100% awesome, bbraun! It should have been my first comment but apparently my polite module isn't working tonight.


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#48 2015-07-15 03:45:26

bbraun
Member
Registered: 2014-05-29
Posts: 1,064
Website

Re: Those Q700 feets

Yeah, I noticed the barbed tab on the middle, but at least with the ones I've printed, it's a really snug fit.  Plus with the material I'm using, the tab wouldn't work as well as with rubber.
Also, the material I've used isn't very good for feet.  The intended value was the model, not the printed result.  I just printed it because I could, and used what I had, as a way to verify dimensions.
For the record, I'm not a feets guy.  I take all that stuff off because it's just one more thing to rot, smudge up things, and get in the way.  smile
But, seeing as how there were some measurements to go from, and I hadn't done any OpenSCADing in a while, I thought it'd be kinda fun to make the model.  I think I've taken it about as far as I'm likely going to, but if anyone else wants to work on the model or try to get some built, I totally encourage it.

To mess with the model, download OpenSCAD from the link above (it's free), and you'll see the markup text describing the model and a rendering of the model on the right.  The rendering typically updates whenever you save your changes to the text.  I've tried to put all the measurements into variables at the top of the file, although I think I put some hand tweaking here and there based on the printed model.

If you want to get one made, most shops will want an STL version of the file.  In OpenSCAD, hit F6 to "compile" the model, then go to File -> Export and export the model as STL.
I've found with things like this, the exact dimensions seem to change depending on the material it is made from.  So I'd expect variations when printing in different materials, and it is likely whatever material is used will need a little tweaking here and there.  Maybe the first set someone prints will need some hand sanding or xacto work, then tweak the model to match the changes needed, and then refine the process from there.

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#49 2015-07-15 03:48:53

bbraun
Member
Registered: 2014-05-29
Posts: 1,064
Website

Re: Those Q700 feets

Oh, another idea, if someone ends up getting this made out of ABS or similar non-rubber material, it might be a good idea to glue a chunk of rubber to the bottom or something, to help it have solid contact with the desk.

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#50 2015-07-15 03:59:10

mcdermd
Member
From: Corvallis, OR
Registered: 2014-05-12
Posts: 973
Website

Re: Those Q700 feets

Or print one, clean it up and make your own silicone mold from it. Then you can cast your own in rubber.


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