22 votes
Accepted

Why keep the bed heated after initial layer(s) with PLA (or PETG)?

There are three reasons (I can think of): A large problem you'd face with allowing the bed to cool after first layer is you stand the chance of losing adhesion after it cools. When you heat the bed, ...
user avatar
18 votes
Accepted

Why do the corners of my ABS object lift off the bed?

There are many different approaches to solving this issue and most of the answers already are spot-on. However, the fundamental reason for the "warping" is incorrect and inconsistent temperature ...
user avatar
  • 6,214
15 votes
Accepted

Ideal print bed: Glass or Aluminium?

I believe printing directly on aluminium is unwise, simply because it will expand when heated, typically giving the bed a concave or convex shape. Glass, on the other hand, does not (at least not ...
user avatar
15 votes
Accepted

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

Heatbeds have two purposes: Increase surface energy of the print bed to improve bonding strength of the first layer (particularly important when using surfaces like PEI or Kapton) Keep the bottom few ...
user avatar
  • 6,446
13 votes
Accepted

How to center my prints on the build platform? (Re-calibrate homing offset)

When centered in the slicer correctly, without offsets defined in the slicer, the printer is most probably incorrectly configured! Luckily you can do something about that! Basically, you will have to ...
user avatar
  • 30.6k
11 votes
Accepted

24 V heated bed from -12 V and +12 V ATX power supply?

No, this is not possible with most ATX power supplies. While in principle you can get a 24V supply by combining the +12V and -12V supplies, the rails are not symmetric, and the negative 12V supply is ...
user avatar
11 votes
Accepted

POM filament not sticking to the build plate?

Great material but very hard to print as it does not stick easy to the build plate as it has a low friction coefficient to grip onto the heated bed. Also, the material sets quite fast, once the ...
user avatar
  • 30.6k
11 votes
Accepted

Why doesn't PLA stick to heated bed?

I think you may have used the wrong substance to clean your bed. Try using Isopropyl Alcohol (IPA). You may have left some residue behind from the soap, which is now interfering with adhesion. When ...
user avatar
10 votes
Accepted

Does the material a bed is made out of affect the cooling time of a part?

What bed material cools faster? I found an extensive list which relates various materials to their thermal conductivity, k [W/mK]; the lower thermal conductivity, the better the material insulates, ...
user avatar
10 votes

Why do the corners of my ABS object lift off the bed?

Most common problem with corners is to low temperature of heated bed. Set the heated bed temperature to 110°. If this will not help then try to set brim in your slicer. The problem can be cause by ...
user avatar
  • 1,911
8 votes

My heated glass print bed keeps chipping and cracking. How can I prevent this?

I use the glue stick method. I like to take my build plate out and put it in the freezer. The different coefficients of thermal expansion between the glass and plastic usually means that the part just ...
user avatar
  • 181
8 votes

Why do the corners of my ABS object lift off the bed?

Adding a manually added brim with a larger bulk at the corner extremities that you can cut off after printing should help. My larger prints come off the printer looking like tents with concrete ...
user avatar
8 votes

Would a steel, instead of an aluminium, plate be reasonable?

I would consider getting another aluminum build plate for the following reasons: Lightweight. Aluminum is a very lightweight metal, making it suitable for most machines that have injection molded ...
user avatar
  • 6,214
8 votes

How do you heat a large glass print bed?

It will be very difficult to heat such a large bed, simply because of the enormous power required. Thomas Sanladerer recommends at least 0.6 W/cm² but notes 0.4 W/cm² also works (but takes "...
user avatar
8 votes

Heat bed troubles

What you purchased is probably a bed that can be configured for either 110V or for 220V, depending on how you hook up the wires: the bed contains two heating elements, hooking these up in parallel ...
user avatar
8 votes

Will a glass bed warp as it is heated?

TL;DR Yes, glass warps when hot. Use a physical touch sensor and calibrate it out, or swap glass if it's "bad". The further you go into mechanical studies like 3d printing, mills, and ...
user avatar
8 votes
Accepted

Clamps / clips for glass on heatbed

How about the Ultimaker clips? Ultimaker uses 2 mm heat bed and 4 mm glass, that should be within reach by bending the clips a bit. They have quite a low profile/footprint. These clamps are ...
user avatar
  • 30.6k
7 votes

Why do the corners of my ABS object lift off the bed?

This is a common problem with ABS. You might prevent it by enclosing the printer inside a box/chamber - that will create a warmer environment and the extruded material will cool down more slowly, ...
user avatar
  • 1,076
7 votes
Accepted

Why does MakerBot Replicator heat the extruder and platform separately?

It really doesn't quite have enough power to heat everything at once. Initially bringing the bed up to temp takes a lot of current and so Makerbot's start sequences decrease stepper current and hold ...
user avatar
  • 6,446
7 votes

Using dollar-store picture glass for print bed on top of original heated aluminum bed?

Picture frame glass (generally float glass) will work well enough, but count on it eventually cracking/getting chipped. It's always very flat (due to the way the production process works). Taking it ...
user avatar
7 votes
Accepted

How do you heat a large glass print bed?

Your best option may be to seek out a silicone rubber heating mat, using those terms for your web search. A quick search on my part shows many resources, some of which are known to the 3d printing ...
user avatar
  • 9,847
7 votes

How thick does an aluminum print bed need to be

Main factors that control the process of the print bed selection are weight: too thick plate increases inertial force, limiting maximum acceleration/jerk (decreased print speed) stiffness: too thin ...
user avatar
  • 868
7 votes
Accepted

Why is a heated bed important?

I'll try to give it a shot as the other answer (perfectly sound answer b.t.w.) does explain "how" we use heated beds, but not "why" they are actually needed for good prints. Plastics or polymers are ...
user avatar
  • 30.6k
7 votes
Accepted

Speeding up the heating of the heated bed

Changing the PSU with one with a higher amperage will not make the bed heat up any faster unless the PSU is underrated for the amperage required and the voltage is dropping as a result of the load. ...
user avatar
  • 30.6k
7 votes

Evidence of a warped build plate?

It looks like your first layer is way too close to the bed. The printer is trying to squash the plastic down very thinly, resulting in inconsistent extrusion. You will likely see better results if you ...
user avatar
7 votes

Why is glass a widely recommended option for the print bed?

I suggest to look at a similar question, but just the glass question here: Glass is a very smooth surface Glass shrinks when cooling to a degree it pops the print free on itself Glass is virtually ...
user avatar
  • 19.4k
7 votes
Accepted

How hot is too hot for magnetic beds?

Depends on the magnets used Magnets demagnetize under heat and are fully demagnetized once their Curie temperature is reached. This Curie temperature depends heavily on the type of magnet, and it is ...
user avatar
  • 19.4k
6 votes
Accepted

How to minimize damage when removing an ABS print from a heated glass print bed?

I moved to a plain glass heated bed with a brush applied acetone and ABS mixture. Using an old emptied nail polish bottle with brush, I added some acetone and then threw in ABS pieces until it reached ...
user avatar
  • 1,803
6 votes
Accepted

My heated glass print bed keeps chipping and cracking. How can I prevent this?

Some things I've tried that have helped: Lay down a layer of masking tape. Most people who do this use blue painter's tape. The plastic should stick nicely during printing, yet release reasonably ...
user avatar
  • 1,456
6 votes
Accepted

Heatbed control with Pronterface

3D printer get the temperature settings from g-code file. The firmware settings for min and max temperature are just safeguards. You should verify instructions within the g-code file. If you are not ...
user avatar
  • 1,911

Only top scored, non community-wiki answers of a minimum length are eligible