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Re: Compensate for bed warp? - 8 years ago

I solved the problem mechanically. I added a 5th bed level adjuster in the center. Makes leveling the bed a bit of a pain in the rump (I have a dial indicator that I attach to the extruder) but in the long run I think this is easier.

by RKMore - Repetier

Compensate for bed warp? - 8 years ago

I have a home-built printer with a very large bed (500x500). The problem I have is that when the bed is cool it is completely flat but when I heat it up it gets a very slight bowl shape where the center is just slightly lower than the edges. I can still print but the first layer in the center is a bit "blobby" while the first layer closer to the edges is perfect. I used a dial caliper to measu

by RKMore - Repetier

Re: Jam detection question(s) - 8 years ago

Hello I was experimenting with JAM_METHOD 2 and 3 and found that in 0.92.5 the code will not compile. It appears to me (please note that I am no expert) that perhaps in extruder.cpp #define _TEST_EXTRUDER_JAM(x,pin) {\ uint8_t sig = READ(pin);\ if(sig){extruder.tempControl.setJammed(true);} else if(!Printer::isDebugJamOrDisabled() && !extruder.tempControl.isJammed())

by RKMore - Repetier

Re: Jam detection question(s) - 8 years ago

You are correct and I did not see this information. It works fine now! Thank you!!

by RKMore - Repetier

Jam detection question(s) - 8 years ago

Hello I am using v 0.92.5 and I have enabled jam detection using a friction driven optical quadrature encoder. It appears to me that the jam detection only works one time per print. Is this true? I have one channel of the encoder hooked to pin 32 so it is outputting a square wave at 24 PPR I have JAM_METHOD = 1, EXT0_JAM_PIN = 32, and JAM_ACTION = 2 If I disconnect the signal from pin 32

by RKMore - Repetier

Re: Pause after bed heat - 8 years ago

Ahhh..... Very clever. Thank you!

by RKMore - Slic3r

Pause after bed heat - 8 years ago

I have a homebrewed printer and my aluminum build plate is a bit bigger than my heater and the edge takes a little bit longer to reach temperature. I would like to insert a G4 Pxxx command after the M190 command. I can of course do this by hand but it would be great to have the ability to have Slic3r do it for me. Any ideas on a way to handle this? Thanks...

by RKMore - Slic3r

Re: possible to pause between small layers? - 11 years ago

Thanks for the reply... I added the following to the "layer change G-code" section and it helps. I still would like to have it be conditional but for now I will play around with this... G91 ; go to relative mode G1 Z4 ; move up 4 G4 P5000 ;pause 5 seconds (5000 milliseconds) G1 Z-4 ; move down 4 G90 ; go back to absolute mode

by RKMore - Slic3r

possible to pause between small layers? - 11 years ago

I admit that I am a noob but I have done my best to read the slic3r documentation and the forums and I can't figure out the following: Is it possible to pause for a bit, or better yet move up in the Z axis and pause for a bit, between layers when layers are very small? I am printing a stepped pyramid shape and even with fans going full speed the layers at the top are not sufficiently set up bef

by RKMore - Slic3r

Very easy extruder that works great! - 11 years ago

When I decided to build a printer completely from scratch the extruder seemed like the most daunting part to try to fabricate (I have very limited machining capability). Then I hit on the idea of using the wire feed mechanism from a MIG welder. All I had to do was remove the DC motor and replace it with a small stepper. I have to say it works really well. The pinch roller is easy to adjust.

by RKMore - General

Can't get my heater to turn on. Any suggestions? - 11 years ago

I an trying to build a completely from scratch printer and I am stuck on a really silly problem that I just can't figure out. All my motors in all axes work, I am getting a reading from my thermistor, and my heater will turn on if I manually raise the control line SSR to VCC (or even 3,3v) but I simply can not get Sprinter to turn in on. In my Pins.H file I have heater 0 set to pin 12. #define

by RKMore - General

Re: Put my cart before my horse and now I need help. - 12 years ago

Dave and JollyGrim thanks for the pointers. Dave. They ARE from that dismandler in CO. Got em on eBay. I went with Sprinter for the time being (only because I did not know about Marlin, may switch later). Managed to get it to start moving in all 3 (x,y,z) this afternoon after some serious hacks into the configuration and pinout files. Hope to have the extruder squiring in a few days. I pro

by RKMore - General

Put my cart before my horse and now I need help. - 12 years ago

So I decided to build a 3D printer from scratch using some linear actuators and stepper controllers from a previous project. I have the basic frame built (see the attached photo) and I can move each axis by hooking the stepper controllers to my waveform generator. Then I wanted to get some software to drive the steppers and actually do the printing (as soon as I finish my extruder). I was not

by RKMore - General