I'm down to hopefully the last problem. I can now use the printer when it's attached to my computer and it works as it should. However, when the computer is disconnected and I put an SD card in the VIKI LCD controller and select print from SD card the screen goes blank, sometimes I can select a file and then it blanks out. Any suggestions on what to check? What lines of code I should check?by Schultz - General
It was something simple after all. I needed to update my USB to Arduino driver.by Schultz - General
I just started with Pronterface just to see if I could connect and control it. Using Ardunio software and picking on the Tools menu I see serial port as grayed out, which I'm taking to mean that it doesn't see the Ardunio. Is there a jumper that turns off the USB?by Schultz - General
I have a 3DP printer that uses an Arduino/Ramps 1.4 board. I want to update the firmware to but I can't seem to connect to it with the USB. I've done this on other boards without problems, so I'm not sure what I'm doing wrong. So far I have connected the USB cord to the USB connections on the Arduino. Starting with Pronterface I tried to connect by scanning the port. It returned Com 9. Usiby Schultz - General
I want to experiment with my bought reprap type printer but I want to go back to the originally installed firmware if I have to. How can I copy the compiled firmware off of the ramps board and back to it?by Schultz - Firmware - mainstream and related support
Is your motor getting really hot? If so it may be softening the filament and loosing grip. Is the drive still turning when it's not pushing the filament. If it is too hot you can turn down the motor current of the extruder drive and see how long it runs that way.by Schultz - Reprappers
Found the fix in the host software too. Thanks Timby Schultz - Repetier
By the way is the STEPPER_HIGH_DELAY to 1 in the Repetier-Firmware configuration tool? I reset it manually in the Conf.h fileby Schultz - Repetier
Thanks that worked for the z axis. I found the y axis was a board to screw terminal problem. Resoldering didn't help so I've requested another board. For now I'll try changing y min pins to the y max switch pins to see if I can get farther along setting this thing up. I have to get this thing to home consistently, I noticed in Repitier host I can't select the second extruder in the drop dowby Schultz - Repetier
I'm using the .91 Rev 7 firmware and Repitier V.95F. two extruders, ,microswitch min end stops to ground, no max end end stops I have turned on and off various features to no avail. I have z probing on. I've turned auto bed leveling on and off. I can not get the z axis to move. If I use PronterFace I can move z-axis but it won't home automatically. Also the y axis when asked to home wigglesby Schultz - Repetier
I'm having problems controlling the second hot end on my Azteeg X3 pro. Has anyone else used this board or other RAMPS boards to control two hot ends? If so I need some advice. The first extruder heats with no problems and I can extrude no problem. The second extruder has been nothing but problems. When I turn the heat on in Proterface the first one heats to 240°C in less than 10 seconds, whby Schultz - Reprappers
I found recently the VIKI lcd control overrides whats in the firmware settings for steps per mm. Maybe this is the case for accelerations too? Do you have a LCD controller? There are lots of settings in the VIKI controllerby Schultz - Reprappers
Here is a picture of one of the z-axis steppersby Schultz - Reprappers
The hot end hasn't been disassembled, there hasn't been a reason to remove it or the tip. With the same hot end it's worked much better with the new motor drive. One of the other problems that I forgot mention when using the Nija Flex rubber filament. With the previous drive the rubber filament would often loop just beyond the drive bolt before the outlet and that would cause it to jam. Theby Schultz - Reprappers
On Tuesday I can get a pic of the z motors. They are 4 amp, NEMA 34, steppers with lead screws through the center. The steppers were already on the powder printer, I was just using what was there. I think Z-corp used large motors because it would get quite heavy when it was loaded with powder.by Schultz - Reprappers
At work we have an Airwolf HD printer which has been very nice for making many of our prototypes. However it's not completely jam free. It's been finicky with filament size. If it's greater than 3mm then it has problems and will jam . If you print faster than 50mm/sec then you can count on it jamming some time during a large build. Also when running Nija Flex (rubber) filament it was frustraby Schultz - Reprappers
We made some progress the week. We have almost everything wired. We need to wire the heated bed, and the thermistors from the hot ends. So far we have gotten it to home and move around, however I need to figure out how to use the z-probe for auto bed leveling for the z home switch. I'll be playing with that section of the firmware next. Machine basics: Marlin firmware Azteeg X3 Pro controlby Schultz - Reprappers
I figured I would start with some background to the project: This is a printer that we have at work and it's been in operation for the last 10 years. It's gotten cost prohibitive to maintain and last year the HP inkjet print heads have become obsolete. Back in December we bought all we could find on the net, which was only 15. It used about 6-9 print heads ($40/ea) on each build along with aboby Schultz - Reprappers
Recently purchased one of these for a large printer retrofit: It's expensive but the quality is top notch. I'm not sure you could find one better made or functioning. I don't think you could make one yourself for the price. It heats very quickly and the tips interchange in less than 10 seconds so you can have a tip for rubber, abs, and PET. I'm also considering putting this one on my Airwoby Schultz - Reprappers
It's had a few challenges. The x and y axis use DC servos, but I found drives that use the encoder information and are driven by the step and direction from the Azteeg board. The Z axis uses four 4 amp steppers, which also required separate larger drives, also driven by the Azteeg. With such a large platen we had to use AC heaters for the bed, which are controlled by a separate heat controllerby Schultz - Reprappers
Thanks. I have checked and there is a pull up resistor on each thermistor input. I found a couple lines in the firmware that I needed to enable and now the thermistors and heaters are working. Time to start putting this beast together. I'm retro-fitting a z-corp powder printer to be a reprap printer. The print envelope will be 24"W x 30"L x 20"T.by Schultz - Reprappers
I'm having trouble getting my Azteeg X3 pro board going. I have the X,Y,& Z moving and homing fine using either repeteir with repeteir firmware or using Proterface using Marlin firmware. Regardless of firmware or controlling software I can't get the bed to heat. I have set the mothorboard in the Config files, and I have set the thermistor settings to use a 100k thermistor and a 4.7k pull uby Schultz - Reprappers
The phrase that comes to mind: Well if it were easy, everyone would do it! I did find the motor on the Pittman site. Its a brushless DC that runs up to 6000 rpm, with 30-50 oz/in of torque. When coupled with the gearbox it can produce 224 oz/in of torque. To equal that in a stepper I would have to have a NEMA 23-34 with current ranging from 2.4-3 amps. These motors as you mentioned are much bby Schultz - Controllers
Does anyone know how to use the DC motor and encoder with a reprap type board?by Schultz - Controllers
Well it was bugging me so I stopped by work and I was wrong on the size. They are 34 frame size, 4 amps each, .55ohm/phase. So they are much larger then I first thought. The X and Y appear to be 24v brushless DC motors with a 11:1 gear box and an encoder. I haven't been able to find the model number on the PIttman website. I can easily replace the dc motors with steppers. I think they usedby Schultz - Controllers
I was assuming there wasn't any value left in a ten year old printer, especially a powder printer where the models have to be de-powdered, dried, and then resin coated before you can do anything with them.by Schultz - Controllers
Yes the 386 does have a hard drive with it. We will be sure to check out whats on it and back that up. The unit has two power supplies: one for the computer mother board and one 24 volt for the what I'm assuming drives the motors and controls. I hope it's not servos since that would cause more work than I was planing. If it is then I'll be looking for some steppers and likely new lead screwsby Schultz - Controllers
When you mention uC do you mean micro controller? I'm not sure of all the details of the printer since it's at work so I would have to take a look at it on Monday. From what I'm told it uses a 386 motherboard, that was replaced a few years ago, I'm not sure of Mhz . We may scrap this. There are two other boards in it, one looks like a 3 axis stepper driver. I'm not sure I could tie all fby Schultz - Controllers
I just purchased an Azteeg X3 Pro controller board which has 8 stepper drivers on the board. I haven't gotten yet but wanted to start researching and planing. I'm planing on retrofitting a Z corp powder printer with this board and a double head extruder. The x and y axis use one stepper, and one each for the extruders. The Z axis uses four steppers, one on each corner of the bed. Total of 8by Schultz - Controllers