In this post I want to describe my experiences with the Leapfrog Creatr HS and Leapfrog in general. Especially the negative ones.
Initially, I got the Creatr Dual Extruder from Leapfrog. The main problem with this printer was that the shaft of the motor for the movement in the y-direction kept breaking. To solve this problem, I got several new motors and also new printers, but the problem kept persisting. When they wanted to send me another new printer, I think the third one, the Leapfrog Creatr HS had already come out (at least on their website). It seemed like this was just the Creatr, yet it was improved on several aspects. Therefore, I asked them to swap my Creatr Dual Extruder for the Creatr HS. They agreed to do so if I paid half of the difference in price between the two printers. I was very happy to do so as the Creatr Dual Extruder is really a crap printer in my opinion.
But this is where the problems started. The first annoyance was the delivery of the printer. This got delayed with five months since the design of the printer was not even close to being finished at the date they promised it would come out. I would get the printer around august but in the end I received it between Christmas and New Years Eve.
Indeed, several of the flaws of this Creatr Dual Extruder were solved. The carriage with the extruders was way lighter which made the machine more stable. Also, the steel rods on which the carriage moves were more rigid which ensured that there were no problems anymore with the x-axis not being perpendicular with the y-axis. Further, the wires leading to the carriage could not get in the way of the carriage anymore so no more missed steps of the stepper drives and the printer was stand-alone with a nice little screen preventing failed prints due to miscommunication between the printer and the computer.
But also the first negative aspects of the printer came up. The first thing was that the information during printing was only half on the screen, and also faulty. The timer would show a fluctuating time left of sometimes even days while the actual print would only take a few minutes. Additionally, the printer is being advertised as one of the fastest - or the fastest - printer around, with printing speeds up to 300mm/s. I think, any person with a little printing experience knows that you can simply not print as fast as the advertised speed. Maybe some printing time could still be saved with fast non-printing moves, but this is also not the case; with any high speed moves the motor will skip steps leading to misalignment of the different printed areas of the printed object. Maybe this can be solved by moving in the z-axis before moving in the xy-direction, but I haven’t tried that. I mostly think that it is misleading that they advertise the printer as being able to print with speeds up to 300mm/s.
The next thing that came up quite soon after I had the printer was a failing heater. I contacted the customer service about this and the first thing they gave me to solve this problem was a new PCB for in the carriage. Quite soon I found out that this was a faulty PCB with a short between two of the traces. I got another one but this did not solve the problem. Based on what I saw, they then gave me a new motherboard, but this also did not solve the issue. I started to check every single wire and found out that one of the wires simply was not correctly assembled in one of the connectors. After correct connection the heater was working again.
Of course, I thought I could finally start printing, but another weird problem popped up. The prints would jam from time to time and I had no clue why this could happen. I started monitoring the temperature and it turned out that the temperature was highly unstable, sometimes dropping under the melting temperature of PLA. I went to the website of Leapfrog to see how this problem could be solved. I followed the PID autotune manuals but this didn’t work. Finally, I got the temperature stable by manually inserting PID values after studying the theory of PID controllers and checking what values other types of printers were using.
Now I got the printer kind of working and started to print the parts I originally bought this printer for. The printer has a large printing bed, which is one of the main reasons I bought this printer. But now it turned out that even with a thicker first layer, I was hardly able to use the entire surface. The nozzle would almost hit the substrate in the middle while the plastic was not even touching the bed on the sides: The printing bed was super curved. I contacted the Leapfrog Customer service and they sent me a new bed. I installed the new bed but this one was curved as well. I spent hours on getting the closest to perfect configuration with a combination of bed leveling and plastic extrusion and then decided that apparently it was not getting better than this.
I started printing my parts and this was going really well. I instructed my whole family on how to use the printer, how much plastic each part would cost, which parts I needed and how many of them. I wouldn’t call it a mass production machine but we were getting pretty close with it. But then it became summer and parts started to fail randomly. I noticed that the temperature in the room was slightly raised because of the good weather and it seemed like the plastic was melted at the extruder drivers. I started monitoring this temperature and came to the conclusion that the drivers were getting very hot. So hot, the PLA started to reach its glass/melt temperature. I solved this problem by placing a fan on top of the printer.
Then, an update of the firmware came out. I installed this, and suddenly all my parts were larger. Turned out that the old firmware had a wrong amount of steps per cm. I had to resize every object I designed because otherwise it wouldn’t fit as a replacement part in my products.
Meanwhile, I found out that PLA is not the printing material to go with anymore and I was searching for other materials to print with. Most of these materials are more subject to warping than PLA and now the curved bed was becoming a problem again. I contacted Leapfrog again but as the printer was out of warranty now, I am stuck with my curved bed and warped prints. Also, I am not sure whether buying a new bed is going to solve the problem, as the last new bed did not solve it either.
Also, the new materials I am printing with (PETG, Colorfabb XT, NGEN) need higher temperatures. Although the maximum heater temperature is stated as 270 degrees Celsius, the printer randomly fails now during printing (at 250 to 270 degrees Celsius). Sometimes it can print for 12 hours straight, and sometimes it fails after 20 minutes. For me, as I already changed the heater, the sensor, the nozzle and the metal tube to which the nozzle is attached, it seems like heat creep now or a faulty connection again. This morning I measured the resistance of all cables and it seems like they are all intact. If anybody has got any clues on this problem I would love to hear this, because I have been stuck with this problem for several months now and I am close to giving up on my hobby.
To conclude, I hope this has been an informative story about all problems you can get when you buy a Leapfrog printer. Also, I would like to hear other people’s experiences with this printer.
To Leapfrog: You can contact me to solve these problems and to hear many tips onto how to improve your printer.
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Apr '17last reply
Jul '17- 24
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