After you get going one of the first improvements I would do is put a sheet of glass on the bed. This makes life sooo much easier. Just a quick wipe with meths and off you go. Any odd bit of household glass, 3mm will work fine. Just clip on with paper clips. my prusaby glyn - General
Just discovered where skeinforge keeps its settings (documents and settings\username\.skeinforge) so have zipped up my current settings which work ok for me. Also attaching the start and end files but these depend on my alteration of sprinter to use M190 and M116 see link and your temp settings. Also attaching image of my most complicated print to date, not perfect some issues with the bridgingby glyn - General
End stop wiring. These are just switches so it doesn't matter which way round they go, and yes they go to the outer pins the centre pin is not connected to anything. Extruder & Bed heater. Outer pins again and as these are just resistors wiring order is irrelevant. Software. These are the four packages I am using. 1.Sprinter source code You will need to alter configuration.h to tune and caliby glyn - General
The power question is I suppose only related to how fast the bed heats up as the temperature is the key thing. I am running the bed from the main board and it works fine. You need to put a thermistor in the centre of the bed * and take the output back to the connectors on the main board. The temperature should then be regulated and remain constant throughout the build. Either manually set it viaby glyn - General
See my post on m190 m190 postby glyn - Skeinforge
Some info in thread below, I abandoned the bed mosfet idea and am driving the resistors from the main board (no link). forum topicby glyn - General
Yes it is probably a good idea to minimise the hot end standing time but I don't really think it is necessary to complicate the codes, what I have now used in my start.gcode file is the following. M190 S40 ; set bed temp & wait M140 S45 ; set bed to final temp M104 S215 ; set extruder temp M116 ; wait for both temps to be reachedby glyn - Firmware - mainstream and related support
Actually there is another change required to display the correct temperature so I have included all the code below. While I was at it I also added some code for the M116 gcode so I can now set my start.gcode file in skeinforge to: M140 S50 ; set bed temp M104 S215 ; set extruder temp M116 ; wait for both temps to be reached Altered code in sprinter.pde case 190: // M190 - Wait bed for heater toby glyn - Firmware - mainstream and related support
QuoteThen you should compare the code used for M190 to that implemented for M140 Good thinking.. Changing if (code_seen('S')) target_bed_raw = temp2analogh(code_value()); To if (code_seen('S')) target_bed_raw = temp2analogBed(code_value()); Seems to fix it. I usually assume I am in error not the code.by glyn - Firmware - mainstream and related support
It may not be documented in the wiki (this threw me at first) but the M190 code does exist, see code from sprinter.pde below. Also if you google M190 you will find other references to it. case 190: // M190 - Wait bed for heater to reach target. #if TEMP_1_PIN > -1 if (code_seen('S')) target_bed_raw = temp2analogh(code_value()); codenum = millis(); while(cby glyn - Firmware - mainstream and related support
I have a Prusa, Sanguinololu, Sprinter set up. If I fire up Pronterface and click on the set bed temp button then the SG circuit is activated and all works ok. If I manually type in the gcode M190 S50 (or put that code in a file) then nothing happens. Looking at the Sprinter source, M190 appears to be implemented, so what is my problem?by glyn - Firmware - mainstream and related support
Got the printer working now, a video and some more info here. My Blogby glyn - Singapore RUG
Slick3r is good but I have found that it does not work with some complicated stl files, I have been persevering with skeinforge and got it to work on the files that slick3r could not handle. As an example I created some text in sketchup and slick3r would not process that.by glyn - Singapore RUG
Update on the contact, I got a reply from James Walsh about my problem with the extruder and he send me a new PTFE insulator and fitting free of charge.. so extra brownie points for him. P.S. I sent the e-mail to orders@thereprapkitstore.co.uk.by glyn - Singapore RUG
QuoteI've had no luck contacting them at all. No they are not responding to my e-mails. I have had a major disaster in that I developed a leak between the PTFE insulator and the nozzle which caused the insulator to break off, so am out of commission until I can get a replacement insulator, no reply from them so far so if anyone knows an alternative source please post it. I think the leak may havby glyn - Singapore RUG
Actually the two programs I am now using are slic3r and printrun, the printrun binary for windows is here printrunby glyn - Singapore RUG
OK here is my latest problem, I mentioned in an earlier post that the hot end temperature as displayed in repsnapper or printerface did not match the actual temp as measured. Well to get a print I found I had to set the temp to about 280 degrees which in reality was about 180 (the melting point of PLA). But.... I discovered there is an automatic failsafe cut off in the firmware which turns off tby glyn - Singapore RUG
Well I am working in the dark really, I was trying to interpret the set up in the link I posted above and here Adrians heated bed I may have got it all wrong but I expected the mosfet to turn on when I activated it in repsnapper and the circuit does seem to work if I activate it with the 5v signal. I agree unless it is automatic it is not a lot of good but it does allow me to use the bed for caliby glyn - Singapore RUG
I have my bed working after a fashion. I am no electronics expert but it seems the wiring on longboat instruction page is wrong. I am attaching a pdf of what I have done. The extra thermistor supplied I stuck in the centre under the alu bed with silicone and kapton tape after insulating the leads. The thermistor output taken to the lower lead on the circuit board connector. I cut off the floppyby glyn - Singapore RUG
Thanks, I tried to use repsnapper to generate the code but it still did not contain the E settings. However... I then downloaded slic3r, this has a much better interface and I was able to get a gcode file which seems to work. I am sending the gcode file to the printer with repsnapper. I am still not able to get a good print however due to the heated bed not being connected. So that is my next tasby glyn - Singapore RUG
Hi, I have received my 2nd batch kit and have assembled it and tested to the following stages. Endstops attached and X Y Z axes working correctly using repsnapper. Extruder motor working using repsnapper. Extruder heater attached and working using replicatorG (repG). Not connected heated bed yet but there was another bead thermistor supplied which I thought I would attach with HT silicone and kapby glyn - Singapore RUG