Hi I have a ramps 1.4 board with an SD card add on. I've been running it for about a month now. This morning there was a power cut in my neighbourhood and since then the board has been behaving strangely. I can connect using repetier host and monitor the temperature of the hotend and bed accurately (checked against an infra-red thermometer). I can also access and change files in the sd card. Howeby blabberjack - RAMPS Electronics
Hi, I've been experiencing some problems with prints freezing part way through, leaving the heaters enabled. I have a ramps 1.4 board and an SD board from which I am running the prints, but the error persists. I've run my stl's through netfabb as another forum suggested non-manifold objects may cause this problem. I should mention that this only occurs during large prints and happened later ratheby blabberjack - Repetier
I'd be happy to give it a go once everything is set up but to be honest, the fan isn't in the way at all so you don't lose any build area. I routed the wires through a cable tidy with the rest of the bundle and wired them right in to the +12v plug so that, when the power supply is on, the hot end fan is on. I'm sure with PLA at 200C-ish you'd be fine even without the fan but it ships free with thby blabberjack - Tantillus
Ok I went ahead and ordered the E3d nozzle, just because I liked the idea of being able to print in teflon/delrin one day. as it ships the nozzle does not fit onto the tantilus carriage but a quick job with a hacksaw and a little dremel grinding bit quickly sorted that. The nozzle is about 10mm longer than the J-head from reprap.me which may be something to bear in mind if you plan to use your taby blabberjack - Tantillus
The toothpick and toothpaste trick is for polishing the inside of the barrel a couple of other posts mention that a rough barrel can cause a lot of friction, I thought that was what you meant by drilling. I had been eyeing up the E3d, I will email them about the dimensions and post what I find.by blabberjack - Tantillus
Thanks for the reply Sublime, I'm using repetier instead of marlin but I have confirmed the temperature with a thermometer. I've run the nozzle as high as 260C which I understand is actually beyond the safe 245C for PTFE. When I pull the filament out of the nozzle, it has a plug at the end with a diameter of 4-5mm and a length of around 7mm, is this normal? Looking at a section of the J-head it sby blabberjack - Tantillus
I'm nearing the end -I think- of a tantillus build but am experiencing problems with extruding, my nozzle (http://www.ebay.co.uk/itm/281188467531?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648) presents a huge ammount of back pressure, compared to my ancient MK5 reprap store nozzle where I could fairly easily manually push filament through, I need to use both hands and ensure the filamentby blabberjack - Tantillus
That seems to have cleared it up! I rewired all the steppers with grounded shield braid protected cable and routed the wires for maximum distance between cables, not only is the machine quieter but -for now at least- it is producing prints without skipping steps (and it looks really badass with those fat braids)! Merry Christmas to me : ) thanks a bunch hennyr!by blabberjack - Repetier
it's connected to D8, I have power to both 5A and 11A rails, both supplied by a single 650w computer PSU. The bed functions fine with repetier, lights come, on PID control works, prints stick well and the thermistor seems accurate, I'll post my configuration.h and pins.h below just incase that helps. I have optical endstops which are set up to home to a maximum, this is not crucial for the X anby blabberjack - General
Hi I have a Ramps 1.4 set up, but I'm having some troubles printing in repetier host which I detail here One of the posters suggested I try marlin/sprinter and while I have the machine set up so that I can manually move the axis using the firmware, I can't get power to the heated bed. I have the thermistors configured correctly I think, 2 - 200K for the bed, the temperature it reads is in the sby blabberjack - General
I tried reduing the stepping to 1/8 buit this produced even more extreme work with step loss within the first layerI do have a toshiba stepper driver I could try to hook up but I am hesitant to do so as it's more lilely I'll fry the board than fix it. My stepper motors are from zapp automations and, as I said when I alter the firmware so that x and y are flipped, the stepping occurs in the new "yby blabberjack - Repetier
I've added some images of the finished pieces to illustrate the issue, you can see that the two small gears and the 50 x 50 x 5 cuboid printed well but the larger gear is sevrely distorted, steppering about .6 mm. Since my last post I pulled out the rods and libreally lubricated the lm8uu bearings with a ptfe bike chain lubricant, the axis now runs quieter but without any perceptible increase orby blabberjack - Repetier
I've managed to print some test cubes and small extruder gears which print out fine with very little distortion: gears have some flats on the round bases. But when I try to print larger objects, such as the large extruder gear or extruder housing the machine loses steps in the X axis. Whats strange is a tried a 50 x 50 x 5 cuboid to see if it was an issue with the physical size of the piece, buby blabberjack - Repetier
Ah I got it, installed repetier and encountered the same issue, after a bit of fiddling about I discovered that the logic of my endstops needed inverting! I haven't tested it with marlin as I think I will just stick with repetier now I have it working, but I assume it's the same issue- hope that helps someone!by blabberjack - Firmware - mainstream and related support
I've got an issue with all the axes on my machine where they will home fine, stepping in and out of the optos and registering x0,y0,z0 when m114 is sent in pronterface but once they are homed I can't moved the motors away from home. they can be sent further towards home. For example if I tell it to home X and then +1mm X , m114 will give x1, y0, z0 when *physically* the machine is at x-1, y0 ,z0by blabberjack - Firmware - mainstream and related support
Ah, that sounds like good news! I have a new ramps shield coming because I suspect I blew the first one somehow or it just shipped broken so I will let you know when it arrives : )by blabberjack - Controllers
I downloaded teacup and ran it with pronterface, it is also registering crazy temps except in Fahrenheit now (like steady 870) it is possible my pc fried the board? also would it be a terrible idea to attach the ramps shield to the board with the thermistor headers plugged in to see if that makes a difference? Edit: I plugged it in anyway, weirdly the temperature readings are now down to aroundby blabberjack - Controllers
yeah, that's what I thought. I grabbed a new arduino mega clone and it is doing the exact same thing though, could it be the repetier client somehow or maybe the pins are all mixed up? This is my configuration in the pins.h setup, I havn't touched it since I downloaded it #if MOTHERBOARD == 33 #define MOTHERBOARD 3 #define RAMPS_V_1_3 #elif MOTHERBOARD == 34 #define MOTHERBOARD 3 #defineby blabberjack - Controllers
Just got a new ramps 1.4 I've been trying to set up. Repetier 0.90 loaded onto the board fine and I can connect to the board via the repetier host. However, when I tried to power the board, it immediately disconnected from my pc, I wired it up as per the instruction on the ramps wiki page with black to - and yellow to + I disconnected the power supply and was able to reconnect to the board. it noby blabberjack - Controllers