This week I’ve spent 48 hours printing 14 segments of my latest PhD project on my Cocoon Create 3D printer, and despite the usual hiccups like print warp and delamination of layers (they are some large pieces using ABS so it’s no surprise – stay tuned for a post on using a 3D print pen to fill gaps), the printer itself performed beautifully. With another 59 hours of printing left to go, I thought it was time to write a little update on the printer and why I think it’s probably the best value printer out there.
Firstly some clarification – the Cocoon Create is based on the open source RepRap Prusa i3, one of the most popular 3D printer designs ever. Many derivatives exist out there that all look identical, including the Wanhao Duplicator i3 Plus which I’ve seen marketed quite a lot on Ebay. The benefit of this is that there are endless supplies of spare parts and forums offering tweaks and suggestions, you just need to look further afield then the “Cocoon Create” since this is the branding for the printers sold at Aldi in Australia only as part of the promotion this year. So there’s not much of a community out there specifically for this printer. But for the general type of printer, the numbers are huge.
As you can see from the top photo, I’ve nearly printed 1km worth of filament with this printer, which I only bought in February this year during Aldi’s promotion. You can read about my first impressions here. For many years I’ve enjoyed successes with the UP range of printers (including the UP Plus 2 and UP Mini), but with the Cocoon Create proving to be just as reliable, and only 1/3 of the price of the UP Plus 2 ($499 AUD), the Cocoon Create is definitely proving to be better value for money. If you do the maths, this printer has so far cost me only $2.90 per hour of printing (+ materials and electricity of course). In particular the positives I really enjoy are:
- Rugged steel design means that there is no movement in the printer – I never have to adjust the level of the print bed. Just click print and it works every time.
- Good print plate that the filament adheres to quite well – no need for glues or tape. I also really like using the Brim setting in Cura to help hold the prints onto the bed and really minimise warping on large prints. I wrote a post about that previously with photos showing with and without the brim setting.
- Decent sized build platform, twice the size of the UP printers 🙂 (200 x 200 x 180mm)
- Open in every way – software and hardware. Unlike many of the printers on the market, you can see and access all of the main features of the printer. Great if anything happens and you need to replace a part. Also you can use just about any software you like for slicing models and saving out G Code. I’ve just stuck with the recommended Cura so far, it has all the settings I need. The great thing about this is that you can get right into the details of the print settings, tweaking until you get your print just right – many printers come with proprietary software, which is normally good for simple plug-n-play prints, but won’t give you full access to settings.
A few things that are still a bit annoying, because hey, it’s still only a cheap printer and can’t be perfect:
- The print plate can’t be removed from the printer (well not easily – you would need to re-level the plate each time), meaning that you need to scrape prints off in situ. I do prefer the ability to swap plates and remove a print when I can get at it easily with some tools.
- The user interface is extremely old-fashioned, possible a relic from the 80’s – a single dial is used to scroll through menus and make selections, and it gets a bit painful.
- Emergency stopping a print when something goes wrong requires either cycling through a few menus (see point above), or cutting power all together which is never a great solution. Perhaps a nice red emergency stop button would fit in with the 80’s styling?
- Running back and forth between computer and printer with a SD card can be painful – with the cheap cost of WiFi chips these days, hopefully the next version can stream directly from the computer. However most printers still suffer from some sort of physical connection or SD card. Maybe it’s just because I keep my printer in a separate room to avoid the fumes…
Those are some of the main things on my mind as I reach the halfway point of this big session of printing on the Cocoon Create – keep your eyes out in 2017 for a return of the printer to Aldi, I have it on good authority that it will be making a comeback 😉 Follow my blog (bottom of the page) or twitter if you’re interested as I will definitely be posting the news as soon as I have details.
– Posted by James Novak