Holger Dorniden

14/01/2017

Purchased Sintron a few months ago; very pleased with it. prints reasonable quality in ABS and PLA.

Assembly instructions are very clear. If you looking 3d printer for learning rather than print quality, it is best option for you.

Jacqueline

26/12/2016

I am a technology teacher and we purchased 2 of these from this seller for use in the classroom (one for my lab, and one recently for another lab). Great product and customer service! We have several hundred hours worth of printing on mine already and doing great. Shipping was always great. I even have a student building one of these kits for himself as a school project.

Do a little research and pay close attention to accuracy and calibration while assembling and it will work great. You may need to check the table level weekly, but it is easy to level. I also have an older RapMan printer with dying electronics so I purchased an electronics kit from them (same Arduino Mega/RAMPS setup as in this printer) and upgraded that machine. Great service and communications every time. I highly recommend them!

Will Nickisch

16/12/2016

Over all good quality. Connectors on stepper motors arrived damaged but they were good and replaced all broken items.

Patryk Radyjowski

13/12/2016

Bought this kit from a seller half a year ago. I'm highly satisfied with the quality of parts (for a given price) and great customer service! One of the parts came broken and I got it replaced with express shipping no problem!

Before you buy / leave negative review - please keep in mind it is a KIT so you need a mechanical and electrical know-how in order to assemble this. It is not one of the fancy $1000+ everything-put-together for me printers. You will get a bunch of pieces, everything you need to put it together are some wrenches and screwdrivers.

Certain things about this particular printer could be improved, but that when the adventure with DIY 3D printers starts :) I've already upgraded it with bed autoleveling.

Overall great buy if you know something about mechanics and electronics know-how (or have friends who know about it) and want to enter the 3D printing family.

Dirk Friederich

10/12/2016

I bought this for pleasure and experimentation. I found the parts generally of good quality and they fit together as well or better than expected. The instructions had to be gleened and squeezed from all the original sources and even then there were differences that had to be worked out.

For me, figuring out the machine was just part of the fun, but I can see where it could be frustrating for some.

I had some problems with screws coming loose, the print head being loose and the frame not sitting square or rigid enough for reproducible prints. My fix for this was to mount it on a rigid aluminum plate. One last thing is that the power supply is 12 volts. I think this limits the ultimate temperature of the bed and how fast the temperature gets there. It would neve obtain 100C for ABS so I had to settle for about 90C. A separate 24 V supply for the bed heaters and a fan ( and heat sink) on the switching transistors for insurance would fix the problem. It could be helpful on this to limit the current to the bed to avoid over temp.

I had to be rather inventive with mounting the zero reference limit switches, milling some mounts from acrylic, and adding an adjustment screw to the z axis.

I do not use the display/controller provided except for information. I use a laptop to send g-code to the machine since I've found that it can be difficult to predict the effect of changes of settings within Pronterface/slicer3d and the laptop makes editing on the fly easier. Not everyone has a spare laptop, but I have not tried the display controller with an SDHC so I cannot comment.

The configuration of the printer works well with PLA plastic and Kapton tape. ABS is more problematic because of the low bed temperature and the problem of warping on parts longer than 3 inches. I have considered a heated enclosure around the machine to keep a large ABS part (or newer different plastics) from experiencing non-uniform cooling as the print is laid down, and hopefully not warp. I think there is an extra switching transistor on the board that could be incorporated in this plan in some way. The question remains: will this interfere with the electronics or acrylic frame or mechanical stability?

I've enjoyed this project immensely, and am happy that I could purchase a "trial kit" cheaply enough that failure would bot be catastophic.