Have you guys ever run into this? I havn't changed any hardware or firmware settings. However i am sure the temperature now reads wrong. If I set the robot to 200 Deg C it wil just barely extrude, and the extrudant is very solid. I tried going to 300 Deg C and it comes out more realistically, but still a little thick. It use to come out nearly liquid like with at the setting of 200 Deg C. Hby Adam.m.Nelson - General
Brnrd, I followed the calibration page on the wiki, then using the comms monitor in arduino I sent G0 E100 and measured it. It was 100 mm. My flow rates are looking more realistic now. 15mm feed rate with 8.0 flow. 15mm of reversal took care of the extra material being leaked out. My extruder just started slipping, so I am going to tear it apart tomorrow and tighten it up. Thanks for allby Adam.m.Nelson - General
When I was calibrating it they were set up right, but my flow rate is really small right now..... I cranked up the retraction and the oozing seems to be solved! NOw just to fine tune the flow rate and I'm good to goby Adam.m.Nelson - General
What version of Skeinforge are you using? 35 What version of the Reprap host? latest What version of the firmware is loaded on your electronics? v1.8 What OS are you running? XP I agree its too much oozing. I just turned up the retraction and will see how far to go . This is a Mendel, but made out of Plywood, so the Z Axis can't go any faster. If I hadn't forgotten the password on theby Adam.m.Nelson - General
You double checked, acceleration is off. .5 mm/s is my speed setting which seemed to fix the problem. Its printing properly now, just too much material is coming out. I'ver been turning down the flow rate (now at 0.1), the feedrate mm/s second is that for the build or the speed of the extruder? I am seeing extrudant pretty much constantly, even while orbiting and the extruder hasn't been spinby Adam.m.Nelson - General
Ok, So I've compiled with ReplicatorG/Skeinforge, and the Z feedrate gets fed too fast based on the XY feed rate. I've tried compiling with Reprap Host but the extruder feed rate seem to be tied to the XY feed rate and over drives the extruder. Is there a way to use the Z and E feedrates specified in settings and not the XY feedrates for everything?by Adam.m.Nelson - General
hmmyeah its generated by Skeinforge. Can I see the start of one of your prints?by Adam.m.Nelson - General
Hmmmm, after reading your post i realized that the feed rate is indeed too fast on that axis, causing this issue.... hmmby Adam.m.Nelson - General
Hmmm, I'm using a geared stepper for my z-axis, so i don't think the issue is torque, but i'll make some tests and try that out. Thanks Sublime. If you're even in the area I owe you a beer!by Adam.m.Nelson - General
Sublime, Sorry for the delay. My X-Axis belts died and I had to rebuild the axis lol. I already have the acceleration off, and i set the limit to 1 mm; no effect. What is going on is that it will print the layer, then go and orbit to cool, then drop and do the next layer at the original height. It doesn't seem to add the new height of the curreny layer... Is there anyhting you can think ofby Adam.m.Nelson - General
Ok, Other then some minor skipping this is almost locked up. Last major problem seems to be that the Z axis doesn't actually move as far as the GCode says it should be. When I feed the printer GCodes manually, or using the reprap host, repsnapper, or replicatorG it moves the proper distance, but when its going through the GCodes from the Skeinforge generation it looks like it may make it toby Adam.m.Nelson - General
Sublime, I turned up the flow rate (it was at 1.9) far too low. The new speed looks good, but the extruder stepper doesn't keep spinning. I'm trying to build a belt pulley, and what I see is the printer spin the extruder to build the layer of the pulley, then it builds a box around the pulley, but the extruder doesn't spin during the box. It seems to be building a shield, but I can't where itby Adam.m.Nelson - General
Thanks. Currently I am making the gcodes using ReplicatorG and printing with Reprap host. Quick question, in the RepG in the reprap.xml file, what is motor_steps? is ot the number of steps in one mm? From what I am seeing the extruder just isnt spinning enough to work now! Very excitingby Adam.m.Nelson - General
Ok, I played with the GCode file, the issue is with the line in red below. However even though I got the print working it doesn't extrude. I am going to check the skeinforge settings and try to recompile it. G21 (set units to mm) G90 (set positioning to absolute) M108 R1.98 (set extruder speed) M103 (Make sure extruder is off) M104 S225 T0 (set extruder temperature) M109 S125 T0 (set heatby Adam.m.Nelson - General
Adrian - I've tried the kick and restarting the print. No go. Thanks for the thought though. Sublime - I have both MAX and MIN end stops installed and they are tested/working. I tried modifying the skeinforge myself, but will try again with your notes and see what happens. Thanks a bunch! NelsonRap - I'll give that a try too!by Adam.m.Nelson - General
Sublime - I tried not monitoring the temperature, with the same result. I did figure a couple things out though. Here is the begining my generated GCode, and a screen shot of the console output. Depending on the version of RepSnapper I'm using it stops in different places, and in the older version it throws out a start at me... With ReplicatorG it jsut starts throwing line errors. Also Attachby Adam.m.Nelson - General
droftarts - Yup, I have full control in manual mode, and I have calibrated the axii and extruder to be proper. Sublime - I'm using the 5D firmware v1.8, I'll give that a try today, thanks for the idea.by Adam.m.Nelson - General
Oh P.S. the screenshot is from RepSnapper, and it works the best for manual control as far as I can tell. Ihh and Gen3 Electronics, on a 32 bit operating system.by Adam.m.Nelson - General
Ok, We now have full control over our printer! Success!! Well not quite. I am unable to print. I can load an STL, convert it to GCode, and start the print. However the printer will only move to the home position, and sit there. I've tried it with the RepSnapper, RepRap, and ReplicatorG applications. I've let it sit for upto 10 minutes and nothing will happen. I have attached a screenshotby Adam.m.Nelson - General
Solved. In the pins.h lins 166 and 167, the pins to drive the extruder were wrong. #define E_STEP_PIN 17 //Old Value 6 #define E_DIR_PIN 16 //Old Value 5by Adam.m.Nelson - General
I know this should be in the firmware section, but I don't think many people are actually looking there. I believe this is a firmware issue. I'm running typical Gen3 electronics, Motherboard v1.2, extruder controller v1.2, 2.x stepper drivers. I've had the extruder working in the past, but i've gone through so many different versions of code (and a crashed computer) I can't find which versionby Adam.m.Nelson - General
Yay z-axis works! But some where along the lines the extruder stopped working. I'm currently searching for a solution, but havn't found anythign remotely close to this issue.... suppose I should start a new thread.by Adam.m.Nelson - Firmware - mainstream and related support
I've got my system back up and running, and if the z-axis issue is indeed that I'm not feeding the F code, I think I may have this thing running! If I do I'll upload a copy of my code so ppl won't go through the same frustrations I did just to get a basic unit running. uhh.. Gen 3 electronics..by Adam.m.Nelson - Firmware - mainstream and related support
@brnrd, thats why I believe i had to change the include list, it was out of order. If there were dependancies that were broken by moving temperature.h it shouldn't have compiled again... I'm pretty new to the atmel environment, but have lots of experience in PIC, so I'm learning as I go here.by Adam.m.Nelson - Firmware - mainstream and related support
Yeah, I turned acceleration off, with it on it would start at a slow speed then quickly spin the stepper faster then it can go... I'm going to try feeding a feed rate with the g code, once I get my computer restored. Thanks for your input guys.by Adam.m.Nelson - Firmware - mainstream and related support
Excellent thanks Sublime. I'll try that tomorrow when I get home.by Adam.m.Nelson - Firmware - mainstream and related support
Hmmm. I've been using the console to send gcodes directly to the mendel. I'll have to try it with replicatorG. Have you seen anything code side that may cause it? I looked around but didn't see anything.by Adam.m.Nelson - Firmware - mainstream and related support