Hi Are you using Skeinforge 5D code (Dimension activated)? If so you can alter the retract settings. Restart extra distance sets the extruder to deliver more plastic than it retracts.by emt - General
Hi With the Mendel you can use Skeinforge 5D code which has a retract function that sucks back the extruded plastic by an amount that you can control in parameters. Having said that I don't have to adjust temperature between layers when printing PLA.by emt - General
Thanks I was hoping to use just a single higher voltage supply if possible so the power supply is as small as possible. Eventually I am going to house the components under the Mendel.by emt - Controllers
Hi I am using a home built version of Adrain's Pololu electronics as exactly as per his schematic. I have just completed a heated bed to Adrian's design using nichrome. The bed resistance is 1.5ohms. It runs fine but the bed temperature maxes out at 93 degrees. I want to try ABS and I understand I need to go hotter. The Pololu drives state a motor voltage range of 8 - 35 V. The 5volts forby emt - Controllers
Many thanks I put a 10 ohm resistor on the 5 volts but the 12V is still at 10.5. However I also connected the power legs of the mosfet and the 12 volt for the bed direct to a different 12V connector on the power supply and the temperature feed back is now stable. I will try another power supply at some time.by emt - Controllers
Hi I use batch files to start Skeinforge. One renames replace.csv with replace.emc and the other renames replace.csv with replace.host. A third one deletes replace.csv for testing. The second line of the batch file actually starts skeinforge. Simple one click operation.by emt - RepRap Host
Many thanks. What would you use for a dummy load on the 5V. Would a resistor be suitable? Does it need a minimum current to work? Clearly the grounds are shared. I need to seperate them some how. Will the mosfet work without a common ground?by emt - Controllers
Hi I have built a version of Adrians Pololu/Mega electronics with home made PCBs using a thermistor for temperature feed back. It has been running well but I decided I would add the heated bed as per I have just started testing. Every thing seemed fine on test using the Host to control the bed heater. I then noticed that when I turned the bed heater off the reported bed temperature jumpedby emt - Controllers
Hi Can you post a behold view and a photo of the resultant object showing the actual problem. I just noticed first you said it was printing at the top of the raft and later that the fill did not touch the perimeter so I am now not sure what you mean.by emt - General
Hi I don't think you can have the extruder stepper driven easily on a different shield to the XY & Z axes because of timing. Can you connect a 4th axis to the mega so you can have true 5D control. I am still not clear as to how you are controlling the CNC. Are you intending to use the Reprap software or a different CNC controller. If it is the Reprap it may pay you to reconfigure your Mega sby emt - General
Hi Are you trying to run an extruder with stepper motor or trying to operate a heater? Please explain how you want to use the the sheild and for what purpose?by emt - General
Hi I don't think Skeinforge can handle 2 extruders. Your best bet might be to ask Enrique.by emt - Skeinforge
Hi Skeinforge has a file called replace.csv. You can use it to change output and even kill commands. Mine is as follows and produces code that works fine with the standard firmware. M108 ; M113 ; M101 ; M103 ; G1 E20.0 ; G1 E0.0 G92 E0 M104 M109 M109 S20 M104 S20 Note thats it must be a TAB character between items. The last line is "M109 S20"TAB"M014 S 20" I suggest you set skeinforge exporby emt - RepRap Host
Hi Can aliencnc control 4 axes? If so you need to set up the extruder as the 4th axis. You can then produce 5d code from the host, repsnapper or skeinforge. I personally use skeinforge. You can set it up to generate A code for repstraps 4th axis extruders instead of E that a reprap uses to control the extruder Can you provide a link to aliencnc? As Sebastien sugested a switch to EMC2 mighby emt - General
Hi Sorry, I meant what software are you using to control the Repstrap.by emt - General
Hi Hi is there any one in Australia that can provide a copy of the download?by emt - General
Hi You can check visually very quickly in Skeiniso. I just tested version 10.11.05 & it centered the object in the raft OK on my settings.by emt - General
Hi What controller are you using for the other axes of your repstrap?by emt - General
Hi Best to test from a terminal without using the host. Details in this thread:- Make sure you have the baud rate set correctly for your firmware.by emt - RepRap Host
Hi You can upload firmware direct into the chip without using a bootloader using the USBtiny. I had to use this method with Sanguinos which I could never get to work with a boot loader. Details here:- I added a line:- sanguino.upload.using=usbtinyisp to the sanguino section of boards.txt Normal upload button then uses the USBtinyISP instead of the standard USB cable. No other boards are aby emt - Firmware - mainstream and related support
Have you the correct drivers from here?by emt - Firmware - mainstream and related support
Markus Many thanks, I am beginning to see how git works.by emt - Firmware - experimental, borrowed, and future
OK Well I spent Friday afternoon lost in Linux. However after a lot of reading and learning I have now got 5DA compiling and uploading to my Mega using the make commands. I now need to understand the config files. More immediately I changed some of the files and I had to revert to the originals (I have now set my editor to version backup so it should not happen again). I did this by deletinby emt - Firmware - experimental, borrowed, and future
Hi Well you asked for comments. As normally a Windows user this has been an adventure. I am using Ubuntu 10.04 LTS I first had to install Arduino using GIT. Then build it with ant which meant I had to install ant and then a Java JDK of the correct flavour. This took a while to figure out with a lot of false steps but eventually all done and Arduino works. Next was the 5DA make. That workby emt - Firmware - experimental, borrowed, and future
Hi Triffid Thanks. I installed git and got the files on a windows PC. I assume you can no longer use the Arduino IDE ( my only experience of microcontrollers to date) so I am now going through the same process on a Ubuntu PC. I think I understand most of the config.h apart from this section:- #ifdef TEMP_C struct { uint8_t temp_type; uint8_t temp_pin; uint8_t heater_index;by emt - Firmware - experimental, borrowed, and future
Hi I am a bit github challenged. Would you please post a link to the release candidate. I have a Mega pololu with thermistor on extruder and bed. If 5DA has the capability to support this configuration I will hopefully find some time to try it out.by emt - Firmware - experimental, borrowed, and future
Hi T selects the extruder. T0 1st extruder T1 2nd extruder etc. As for skeinforge run it on a simple job (that needs support) with support switched on in Raft. Have a look at the G code output. Even if it does not create the code you need you may be able to get the correct code with replace.csv which can be a very powerful tool.by emt - Skeinforge
Hi Start a new thread or this may not be viewed by many people.by emt - General
Hi Yes. Make sure you use the TAB between the items to be changed. E(tab)Aby emt - Skeinforge