3D Printing Stack Exchange
3D Printing Stack Exchange

Most Popular

more tags
1500 questions
12
votes
2 answers

PLA use outdoors?

I have been using PLA filament for two years now and have had good prints. ABS on the other hand has not been so good, so my choice of filament is PLA. I am getting ready to do a sign for the American Legion and the colors are black, blue, and red…
Robert Morgan
  • 121
  • 1
  • 1
  • 3
12
votes
2 answers

E3D Thermistor Alternative

E3D hotends use a thermistor whose legs are insulated with glass fiber sleeving and clamped down with a screw and washer: This solution enables the printing of high temperature materials, but it's a bit fragile and after reassembling the hotend a…
Tom van der Zanden
  • 15,057
  • 2
  • 37
  • 65
12
votes
3 answers

Troubleshooting poor adhesion at the edge of the bed

I've been printing for a week now on my new printer and have been getting great results, including great adhesion. However, most of my prints have had a fairly small footprint. Now, I'm stepping up the types of items I'm printing, and I've started…
Jeff
  • 318
  • 2
  • 7
12
votes
3 answers

Heated bed - what are the benefits? Why use one?

When using a heated bed with your printer, I have seen claims of running temperatures of 90c throughout the print. That seems like a fairly high power use to keep a large slab of, say, aluminium at 90c for long print times (ie multiple hours). Is…
Beeblebrox
  • 231
  • 1
  • 2
  • 7
12
votes
1 answer

What do linear rail codes mean?

In looking at 3D printer motions systems, I've seen linear rails with codes like MGN15H and MGN9C. What do the letters and numbers mean?
chobok
  • 295
  • 3
  • 6
12
votes
4 answers

How to easily get rid of rafts and support structures?

My printed parts consist rafts, supports and other extraneous filament when printing with ABS or PLA. What are efficient general techniques of removing them?
kenorb
  • 2,805
  • 2
  • 24
  • 40
12
votes
1 answer

How to tell if PLA temp is too hot/cold

I was having an issue with flat sheets raising up during initial layers. I had my bed at 80 °C and kept raising it thinking it was an issue with cold. After reducing the temperature to 50 °C the sheets sit flat now but sometimes sections come loose.…
FourierFlux
  • 245
  • 1
  • 2
  • 7
12
votes
4 answers

Is there a way to save a multi part print if one fails?

I'm printing 6 separate parts in one go, after 4 hours of printing one part failed, but the other 5 are printing nicely. Is there a way to prevent the print from printing the failed part and continue printing the other 5 parts. I'm using Cura and an…
Nerdroid
  • 223
  • 2
  • 6
12
votes
2 answers

How to 3D Print 5-pointed star object that doesn't have flat bottom and hole in the middle?

I'm new to 3D Printing. I've created this star from Blender3d. As far as I know, most printers require a flat bottom. As you can see (blue line is Z-axis, red line is X-axis, green line Y-axis), the star doesn't have any flat sides or…
junerockwell
  • 323
  • 2
  • 8
12
votes
2 answers

How to choose an extrusion temperature?

From what I've been able to find out, online sources recommend around 205ºC for PLA and around 240ºC for ABS. But these are only guidelines, of course. Optimal printing temperature can be different depending on the printer, the filament, the model…
mhelvens
  • 1,021
  • 2
  • 13
  • 22
12
votes
4 answers

Simultaneous heating of extruder and bed at start of print

I notice that if I print from Cura without preheating the printer, it will first raise the bed temperature and then raise the extruder temperature. The G-code it generates is: M140 S55 ; set bed temperature to 55 C M105 ; report…
rgov
  • 383
  • 3
  • 4
  • 12
11
votes
4 answers

Can a heatbed PCB (Prusa Mk2) be straightened out?

I have a really bent heatbed PCB, the middle is elevated about 3 mm with respect to all edges. I have found this thread Warped PCBs, where a heating method is applied by baking a PCB in the oven, as described here: 3.2 Bow and Twist Repair. Can this…
kamuro
  • 2,972
  • 3
  • 25
  • 43
11
votes
2 answers

How many times can you re-flash the Marlin firmware to a RAMPS 1.4 board before it degrades the ROM?

First of all I'm working with a Folger Tech Prusa i3 kit, if that makes a difference. Also I believe the Arduino is a Mega 2560. I know somewhere in the back of my head that electrically programmable ROM like what must be on the Arduino board…
user273872
  • 313
  • 1
  • 6
11
votes
3 answers

What's the advantage of two z motors?

Some RepRap models use only a single motor for the Z axis, others use two. For example, there is the 3drag that has only one motor and a smooth rod on the other side. There are modifications that add a threaded rod on the other side that is…
nnscr
  • 113
  • 1
  • 1
  • 6
11
votes
4 answers

How to set the Z home offset

I have what I thought would be a simple question. I don't have an auto leveling probe, I do my leveling manually with 4 screws and a piece of paper (I measured the thickness to 0.1 mm). For the longest time I would have trouble with the first layer,…
Matthew Goulart
  • 213
  • 1
  • 2
  • 6
1 2 3
…
99 100