New High-ventilation Expansion Port Cover - A1200

[amigasith]

Now with more daylight than yesterday night I carefully filed off 4 of the edges that resulted from the cutting-off. It's of course still not as nice as it was in its original state, but I'm okay with the result. Here is a daylight picture:



@Steve: If you want to use a picture for your Shapeways page, I personally think this here looks a bit better compared to the one above

[Steve T]

Thanks AS, that looks better!

Originally Posted by seb132

Ordered my special one... Thanks mate!
Halas no more free shipping, aouch! Been too slow I guess...
*** edit
... Hope the model I used has all latest improvements you did lately...

I didn't have time update that one in line with the plain fan 060 model, it'll need a bit of filing depending on SIMM configuration.

Cancel the order before its in production and i'll update the file then if reordered it'll be the latest revision.

[Steve T]

OK Seb, I have updated that one, but again, shapeways will print the older version unless you cancel it and reorder, and once the order has moved into its production phase the order cannot be cancelled so better to do this ASAP.

Thanks!

[Steve T]

Guess what turned up today

And yup, I can now play Frontier on the 030 without the graphical corruption I was getting....

[bubbob42]

Great job, Steve! I built customised trapdoors for A600&A1200 myself maybe a year ago (can be found on thingiverse), but yours must be a lot more effective concerning ventilation. It also needs a lot less material, which is also great because it reduces printing costs.

My only complaint would be that the "ribs" do not look like Commodore would have done it this way, but we can only imagine here, so simply ignore it. I didn't do better anyway.

[Steve T]

Thanks, I worked a long time on the design I think the only departure is the reinforcing / backing lattice, necessary for strength. The vents are otherwise exactly like C= spec, like the row on the front of the lower shell.

[trixster]

Originally Posted by Steve T

So made a few changes based on feedback... http://shpws.me/Kmoe

Mainly, the edge of the fanmount nearest the SIMM had to be trimmed back for a better fit, so to save people the trouble this is already done in the new version, and the whole thing has been shifted a bit for more room and better alignment. along with new "fences", the vertical structures that run in a "U" shape around the inside, this might make it easier to remove them (ideally with side-cutters) if certain cards have conflicts with that area.

So my fanmount trapdoor arrived today. I'm guessing it's the version before the revision mentioned above as the fanmounts foul on the simm. Pretty annoying as I've had to take a knife to the trapdoor and cut off two fanmounts to get it to fit. The fences also foul on the simm a bit so the door bulges slightly when installed. Not only does this add pressure onto the simm (not a good thing) it also increases the required clearance from underneath. Not good. The only thing to do would be to cut out a lot of the fencing, which I'm not sure I can be arsed to do. I've gone back to the original door with a passive heatsink installed whilst I have a think about it. At £20 a time plus £7 p&p it's getting quite expensive beta testing these trapdoors.

[Steve T]

Hi Trixter, Thanks for the feedback, I'm sorry you're not happy. Yes it was the revision that was up at the time you ordered it.

The biggest functional change in the newer one is that the fan mount is a little further away from the SIMM so the walls of the mount would clear it, I also removed the walls for even more clearance just in case.

Shown in the attachment is the one (same version as yours) that boost modified for the same card, he just removed the wall of the mount and had no issue with the fences (nor did AmigaSith, iirc, - also B1260) it appears that the SIMM socket is well clear so something must be different.

It would be the same issue with any other cover if that was the case including the original one which works ok? Its true that the newer one is easier to modify but you would still have the same issue here with the newer one.

Boost is getting the latest version this week, it seems Seb will be getting the older version like yours and the one pictured below as he hasn't cancelled and reordered, I expect the card is in production now, but it should be a perfectly functional part if modified as below.

[Steve T]

Big thanks to Boost for this pic of the Rev2 panel, which apparently fitted perfectly with his 1260, with no need for any modification - check his comment on shapeways

https://www.shapeways.com/product/L9...-40mm-fan-rev2

[HardStep]

Looks awesome!

[Steve T]

Thanks Hardstep, appreciate the support

[TjLaZer]

Got mine too. The tab needs to be adjusted a bit, as it's too shallow. But will fit if pressed down hard and twist it a bit so it will clip in. My original cover is a Rev B. Has the new revision fixed this issue?

[seb132]

Originally Posted by Steve T

OK Seb, I have updated that one, but again, shapeways will print the older version unless you cancel it and reorder, and once the order has moved into its production phase the order cannot be cancelled so better to do this ASAP.

Thanks!

Just saw your message. I guess I'm too late. No worry I'll do the mechanical adjustments required and will order s new one next time they'll offer the shipping for free.

No worry at all, my plan is to have 2x Amiga 1200/060, lol.

[Steve T]

TJL, Thanks for the pics! btw the stem is exactly the height it should be, but the original part has a stem which is about 0.15 - 0.2mm taller than that, taller than the area in the amiga it clips onto.

To fit these parts don't push fit, instead flex the entire panel a little, you can do this because its nylon (original part is ABS) and the clip goes in easy, holds extremely firm and can still be removed easily. In the latest fan versions of the panel you can't even bend the clip at all. It sounds weird, but its a different material and it works real well so I see no need to change it.

I think particularly for the fan versions, the close fit and material properties might help to damp out vibrations/noise, the looser fitting more rigid ABS original, if you could put a fan on it, might well vibrate a lot more.

Seb, it would have helped me if you had the most recent also, because I updated the file, which sets the model back to 'first to try'.

Well don't get one unless you get another 1260 then, I'm sure it'll work fine for you and I hate to see any of the prints go to waste.

please take a pic of it installed, interested to see how the text turned out

[TjLaZer]

Here is a comparison.

[TjLaZer]

Installed.

[Steve T]

Only difference is it doesn't have the extra wiggle room that C= designed in for the ABS push-in parts.

Hope that makes sense now, if you still think there's a problem I'll consider changing it but to me at least they all seem to fit really well, you should find it fits better, more snug, you just have to flex fit it.

As far as I can tell, every single panel has fitted the chassis so there's been no inconsistency in the manufacturing over about 20 units & 6 months or more & no difference in case / panel revisions by Commodore.

I'm only saying this incase there are people put off because of an issue which doesn't really exist.

Is that another Blizzard btw? I added your pic to my listing, thanks!

https://www.shapeways.com/product/3U...rt-replacement

[TjLaZer]

Yes Blizzard 1230 MK IV '030/50Mhz

[Steve T]

Thanks TJ

I'm seeing free shipping! AGAIN! @ shapeways.

use the code FREESHIPNOV at the checkout for free postage, shipping until the 8th

https://www.shapeways.com/shops/cool...#more-products


Use code FREESHIPNOV at checkout.
Free shipping applies to our lowest-price carrier.
No cash value.
Expires November 8, 2015 at 11:59PM PDT.

[voyager_1701e]

Just ordered 3 traps and 1 USB/DVI port cover...thanks for the heads up on free shipping