For clearing clogs I use a piece of fine music wire (a 0.010 inch guitar string ) Cut it 6 inches long and put some slight kinks spaced a few mms apart in one end of it. Using manual control raise the printhead up 3 inches or so to give yourself some room. Turn on the extruder heater. Open the clamp and when the temp gets to about 150 pull the filament out. This will remove most of the plastic from the extruder. Trim off the end of the filament back beyond the grooves left from the hobbed bolt and throw it away. Now when the extruder gets to temp 200+ use some needle nose pliers to feed the wire into the nozzle. It may take a bit to get the wire to go in that little hole. Once in use the pliers to push it up until you can grab the wire where it comes out by the hobbed bolt. Now use the pliers to pull the wire through the nozzle. The wire will push any clogs up out of the nozzle and the kinks will kind of sweep any bits of plastic left in the heater block and cold end out. Wait till the wire cools and clean off any plastic bits clinging to it set it aside to use next time. Reinsert the filament and attach the roller clamp with the screws and springs.
I did read the thread and re read the thread and what I see is that Eric has not been able to print a good part on his Robo3d machine. He asked Robo for help and got an unsatisfying answer. He has prints that do not stick or have thin weak walls. He has a clogged extruder for which I sent my $0.02 worth of solution which is different than anyone else’s. He also has broken printer parts that he asked for STL files and was provided a link by Vacrin . He got suggestions on better materials sources and contacts and ways to contact Robo tec’s. Robo finally agreed to repair, replace or refurbish the unit and he is shipping it back. As far as I can tell the printed parts quality issue has not been solved. Getting a new machine might do the trick however If it does not then part of the problem may be in the slicer settings. There are many settings in the slicer programs that can affect how well parts stick and how thick and strong the walls of the part turn out. I have had similar issues that Eric is having and found some of them to be slicer settings related. Where in this thread has he answered the above questions about his slicer settings? If there is a different thread related to this one I missed it.
Sorry for your experience Bryan. Out of curiosity what printer did you switch to. Since CES Robo3d has gone through some restructuring that I am really not a fan of so my next printer will probably be from somewhere else too.
I went with the Atom 2.0, its an all metal delta printer and is absolutely amazing! Ive had nothing but perfect prints with stunning quality!! The sad thing is I cant even sell my Robo since again I cant ever get it to work right!! I tried running a print to make sure i could list it for sale and it shut off due to a temperature drop of the hot end after about a minuite of running. So im stuck with a paperweight!
Try one more thing. Replace the poly fuses with real fuses. I had an Issue with mine shortly after receiving it. The poly fuses would overheat and shut the bed heater and/or the extruder down. I started getting good results when I “temporarily” replaced them with jumper wires. I should replace them with real fuses just never got around to it. Still working good after 100+ prints. I also found rerouting wires to allow better airflow and installing a fan to cool the control boards also helped eliminate issues.
Ive done all of that! i removed the bottom cover and put a 4" fan over the control board, put legs on the corners of the printer to raise it up enough to increase air flow, and it still drops temp! you can watch the hot end temp drop as soon as it starts printing! id live to getit running so i can sell itand get it out of my sight but i cant sell it until i get it working… i called Robo last night to see if they could help and again they had never heard of it and had no clue how to fix it as usual!! id be better stripping all its components and selling the parts
I honestly hope Braydon from Robo reads all these comments and is ashamed of what he has created! I understand products can have bugs from time to time but theres thousands of people that have complaints and nothing is ever done about it!I work quality control for manufacturing facilities and if we had this many issues with our products we would be out of work!! Its sad to have bought something I was so hopeful about since it was made in the USA and stated 24/7 customer support only to find out its a super lemon for almost everyone!!
