Jzatoopa, I have do not know what the designation is for my hotend. It is the "standard" hot end sold with Wades extruder. If you check MixShop site in Toronto, Canada they show the components used. When I purchased I bought the Prusa/Mendel kit which included all the bits and pieces. Bobby BobHewson - General
Shadowram, Are you suggesting that I set my bed by setting to "paper" clearance at the 4 corners of the bed to the homing height of "Z"? I can see this as being as easy and likely more precise than using a level, either bubbble or electronic. What about 3 measurement points instead of four ie. 2 corners and center of opposite side? Bobby BobHewson - General
Attached are photos of my bed and hobbed bolt. I have my printer sitting on a piece of MDF with a 3 point leveling system. This part is easy to level. The heated bed is supported by 4 bolt/spring/jam nuts. Perhaps a 3 point leveling on the bed too would simplify levelling? My hobbed bolt is commercial and of good quality and workmanship. I have a 2nd as a spare and it is identical to theby BobHewson - General
I am finally having success with my Prusa/Mendel printer thanks in no small part to the generous support and advice by members of this forum and my kit’s vendor (MixShop). Now I am back for more advice concerning extruders and leveling so I can cut my maintenance time to less than my printing time... My “Wade’s geared extruder” works well but tends to jam from time to time and requires too muchby BobHewson - General
What are the pros and cons of the two nozzle sizes when using PLA 1.75? What changes in settings are needed when changing from 0.35mm to 0.50mm nozzles? Bobby BobHewson - General
Thanks Andrew, I think I understand a little better now. I'll try later today and repost my results. Once again, thanks! Bob Andrew, my system now retains the changes and is now calibrated. Sure is nice to have all the helpful and knowledgable forum members! Bobby BobHewson - General
Pressed the reset each time, still acted as noted. Bobby BobHewson - General
I have been working for some time now to get my Prusa/Mendel printer to print a decent print with zero success. Too much plastic, bubbles, blobs, missing plastic, short tracks on some infill and the list goes on. So many problems that I have scrubbed all 3D printer software and files from my computer and registry and have started fresh. Calibration of my printer is step one and is giving meby BobHewson - General
Thanks, doesn't seem too tough with your explanation. Thanks, much appreciated.javascript:editor_tools_handle_smiley() Bobby BobHewson - General
I would hope to be able to control the fan's speed and on-off. What is and where is D9 "mosfet" and its terminals (see like I said, not much electronics know-how)? What are M106 and M107? Assume some software switch? Bobby BobHewson - General
Once more you are a life-saver. Many thanks, Bobby BobHewson - Repetier
I have been having trouble with calibrating my Prusa-Mendel. Settings don't seem to upload from Sprinter. I finally figured that I had my printer identified in the software by two names and the electronics were not not using the same info. I figured the solution would be to delete one name, so I did so, but deleted the wrong one, but, that one should have worked (and would have required ammendby BobHewson - Repetier
I think I need a fan for my printer (Prusa-Mendel printing 1.75 PLA with 0.35 nozzle). I have encountered jams caused by heat traveling up extruder head collum which requiring much time and effort to dismantle and clear. My problem is that I am not comfortable with electronics and electrical so really don't know where to start on installing the fan and having it controllable. I have purchaseby BobHewson - General
I plan to print a new hinged extruder. Most parts and extruders I have seen online appear to be printed with ABS. Would PLA print a servicable exrtuder? My reason for preferring PLA is that is all I have used. No plan to use ABS and it's higher print head temperatures. Bobby BobHewson - General
Thanks for the fan comments, now if someone would post a "configuration.h" file that gives good results with 1.75 mm PLA, a 0.35mm nozzle, and heated bed I could make some progress on print quality. Bobby BobHewson - Slic3r
Hi, Are there any RepRappers in London? Bobby BobHewson - Canada, London RUG
I have a Prusa/Mendel printer. I use Ramps 1.4. I print with PLA 1.75mm, I slice with Slic3r, I do not have a fan (yet). I'm a newbie, and have been printing for a few weeks. I see steady improvements but still have a way to go. Will someone with a similar setup post a text file of their config.h file so I can see what is different from mine and reason out the "whys"? Alternatively, I canby BobHewson - Slic3r
Hi James, Once again thanks for the advice. Slowly improving, results getting better. Sure is great that you and others so freely offer your expertise! Bobby BobHewson - General
Question !: How far above the printer bed should the extruder nozzle be while printing or for "Z" home? Question 2: What causes occasional blobs while printing (using PLA, 0.35 nozzle, calibrated extruder) Problem: My extruder (Wades type) stops extruding after a short period. Filament is not moving, all looked OK when opened up i.e. filament intact minimal plastic on hobbed bolt (what a paiby BobHewson - General
JCaber, Thanks for the suggestion. Once I become more proficient I will add that as a definite improvement for my printer. As I currently see it, changing filaments will be a pain, so won't be done as often as it perhaps should be. Bobby BobHewson - General
James, Konwiddak, and Nophead, Thanks, have my machine operating now and have a couple of prints completed, not bd, but not great either. Your advise was key to getting everything going. Re feeding extruder. The entry hole is smaller than 3mm, but you suggestion that the feedstock might buckle by missing the hole was right on. That did happen, but had to take it apart to find this out. Lookby BobHewson - General
I finally have my printer up and running, in large part to on line help from this forum. My first few prints are not bad, not great either. In setting up my Slic3r config I found some suggetions on were to start and many settings made sense and were easy to change from 3mm filament to 1.75mm filament. I realized as I tried printing a few more items from Thingiverse that there were a lot of setby BobHewson - General
Repentier, OK, all is now working properly. I deleted and reinsstalled the software, removing all traces from my computer. With a clean install everything now works as expected. Besides not doing things properly I must have had a corruption in my program or a file. Thanks for all your help. If nothing else, having problems like this forces me get to know more of the ins and outs of the softby BobHewson - Repetier
Hi Repentier, I tried what you suggested, at least I think I did. I am still not getting result I expect. I have the three customized files for PLA using 1.75 filament, and 0.35 nozzle. I load a simple STL file and place it. I open "Slice" section then I open setup and put your "$home/appData/roaming/slic3r" (not sure I understand this search command). in the Slic3r Conficuration directory.by BobHewson - Repetier
I wasn't aware that there were different versions of extruder for 3mm and 1.75mm. Shouldn't my kit supplier have known that? The suggestion of a supplemental tube sound like a good idea. I will take the extruder apart and refresh my memory on how it works in detail (first tarted this project a year ago). I really don't understand the explanation James gives on my homing problem. Can you explby BobHewson - General
Thanks, I will work through the suggestions from both Repentier and Steve. I'll report back on how I made out in a day or two.. Sure is great to have people so willing to help us old guys (retired and 76) Bobby BobHewson - Repetier
I have a new Prusa/Mendel printer that I am having some start-up problems with. Most problems have been solved, but two remain. My "Z" homing is acting strangely. I adjust the Exruder nozzle to be a paper"s thickness above the glass plate on my heated bed. It tracks up and down manually, but when I send it to "home" it cycles up and down. About 3-4 full turns of the threaded rod up, then onlby BobHewson - General
Repentier, I reviewed what you said and what I understand is the procedure, but without success. I have detailed below what I did. I have a configuration which I have customized for 1.75 PLA using a 0.35 nozzle. I have called this setup "PLA red initial setup". I have completed the print settings using this name as well, the filament and printer settings in Slic3r. The file(s) have been savby BobHewson - Repetier
Thanks, I will go through the process again bearing in mind your comments. Bobby BobHewson - Repetier
I originally posted this under the general forum, should have been posted here. *************** I have finally completed my Prusa/Mendel printer and have determined everything runs, but the slicer operates using 3mm PLA as the default). I am somewhat mystified by how Repentier-Host and Slic3r work together. I am using 1.75mm PLA with a .35 nozzle. When I run Repentier-Host 0.87 it has a builtby BobHewson - Repetier