AndrejV

Since we have the Ultimaker S3 we had the ER34 five times! It mostly likes to pup-up in the middle of a large print. So, you must disassemble the print-head and reassemble it. And not to mention your print is ruined. As much as I like the S3/S5 and some of their features, this is bad engineering! Ultimaker should design this better in this price range I think this is unacceptable!

Thanks for you input. I will try to make it. The only problem I see is how to make silicone wheels. So, some input what silicone to use and the model for casting would be appreciated. By the way WOW!! The thing on the picture is beautiful. Mind telling us what it is? A power amplifier?

His last post was an answer for 6 orders: After first initial prototypes a 100-150pcs next order is a bit unrealistic… So probably something changed his mind, or he does not own a UM2 anymore and lost interest… I think it still would be nice if he did lost interest to give the BOM and source files, so somebody else can continue… It is clear that S3 already has the sensor and UM3 is closed firmware but there are still quite some UM2, UM2+ printers in operation out there that would greatly benefit from it...

Hi, If the project is terminated is there any chance to get the the information how to DIY the kit? I have an S3 but also an old UM2+ and don't want to sell it as it prints so much faster and nicer because of the lighter head, but the flow sensor presented here would put it on another level… I really want one!

Thanks for your answers, Regarding material synchronization my problems was I was using Cura 4.4. Updating to Cura 4.5 fixed the problem regarding material synchronization. So, this is something to keep in mind Version 4.5 is a must for S4 and S5 as I found out... I now even could download the Fillamentum ASA material directly from your internet materials database which is nice. As for the cooling time: Nozzle cool down is not the problem and as “gr5” mentioned is fast. The problem is the printer waiting for the build plate cooldown. This takes ages from 110 or 120°C, and what would be nice users could skip. First It takes a lot of time when you cannot do anything over the printer UI. Second when you remove the part and want to start another you must again wait for the build plate to heat up. I’m using 5.3.10 Firmware. I also encountered a bug regarding build plate start position. When manually driving the build plate to the up position, and forgetting it there when you start a new print job the printer would forcefully ram the build plate into the head and abort the print, stating calibration could not be performed. But I’m scared to repeat this not to damage the printer.

I’m would also like more freedom. Moving from UM2+ to S3 feels like getting a slower less flexible printer regarding basic operation handling. 1.) It would be great to let users change the filament or print core without the need to wait for the print bed cooldown. This is total unnecessary and takes up precious time when print bead is at >100°C with technical materials. Probably the best option would be to let us abort the cool down wait if we want to. 2.) I mostly use technical materials like ABS, ASA… with the old UM2+ you could store the custom material parameters and names in the printer, I was unable to do this in S3. I have to use ABS now as a base and tweak the settings to get the printer to work. I was certain when purchasing the S3 the material library in Cura can be downloaded to the printer. If this is not an option please let us create our own materials on the printer, while your materials are nice, you don’t have quite some high-tech materials in your offering. 3.) I get it you supply the printer with a glass print surface, but while this is ok for PLA it cannot be used for large ABS, ASA and similar prints. It is impossible to get the right adhesion to get the print to stick on the whole build plate and if you manage to get it to stick with hair spray or using your adhesion sheet and the print is big it’s impossible to get it off afterwards. So, we must use third party magnetic build plates that can be removed and then bend to get the print off. We mostly print large items in our company with large footprint at build plate level. So, it would be nice to have an option to select custom build plates, and store height calibration for each separate and NOT perform the height calibration on every single print, this is fully un-necessary and again takes time. Overall, it’s a nice printer, but I hope there will be some firmware options added soon.