I have been asked whether it would be possible to print Iona at 1:200 scale - thought I would answer it here - so that it is easier to reference again in the future.
I have printed Arvia at 1:250 scale - which involved splitting each deck into 6 parts - so a total of around 90 separate prints. The build log for this is here.
https://modelshipworld.com/topic/34977-arvia-by-dave-wood-finished-1250-po-cruise-ship/
In order to print Iona at 1:200 it would need to be split into at least 8 separate parts.
The easiest way to do this would be to take the 2 part spit 1:1000 Iona model that is contained with the ‘experimental arvia and Iona’ upload here
https://makerworld.com/en/models/15006#profileId-14776
And then further split each Iona half into 4 separate parts - to give a total of 8 parts, then scale the model up to 1:200 scale.
There are however three problems with this.
- Supports around the splits. The 2 part split Iona model does not have enough supports around the split parts of the deck - as illustrated in this picture -
. which resulted in some dropping and print quality issues when I printed it last September. After a bit of cleanup though it came out quite well and I have only even printed Iona once multi colour at this scale.
So either manual slicer supports would need to be applied, or a few small cylinders added to the model to support any parts affect by the splits.
- A possible bigger issue is that since I made this profile there has been some sort of change made to Bambu studio which means that it no longer maintains the colouring when you split models. This is discussed in this thread - so a solution to this issue would need to be found, either by using other software to do the splitting, or perhaps an old version of Bambu Studio, or accepting that the colours will be lost and manually re colouring the model.
https://forum.bambulab.com/t/loosing-colors-when-splitting-to-parts-or-objects/55213
- Taking a 1:1000 model up to 1:200 scale would increase the size of all parts by 5x - which will work - but will not be taking full advantage of the 5x more precision available when you print the model so big - so really ideally the rescaling and adding extra detail should be done in Fusion 360.
In theory a lot of this could be done by changing a few parameters in the F360 model, however in practice, once models get complicated you break quite a lot if you try going too far back in the timeline - so it would probably be best achieved by going through the model and cutting lots of material out - in areas such as balcony partitions and windows etc, plus also redoing things like the text to make it a more realistic size.
As I don’t really have a need at the moment myself for anymore models greater than 1:400 scale - then I can’t really justify the time to make these changes unfortunately.
As referred to in the Arvia 1:250 build log above I did do a fair bit of this sort of stuff for that particular model, but I decided not to release it due to the need for clean prints of every part to be done for Makerworld, plus the likely very small audience for such as large and expensive to print model.
So if anybody does want to try printing Iona at a bigger scale I would suggest starting with the 1:1000 model mentioned above, cut it into more parts with either an old version of BS, or maybe Orca Slicer or some other software like blender, then add some extra supports in around the cuts.
Also note that due to commercial restrictions I have only released the models under a license that does not allow any remixes - so please do not publish any split up, rescaled or edited versions of the models.