Why should you add an insulating panel under the bed? I remember asking myself this question when I first saw the “new” plate of Tevo Black Widow with the insulation under the plate. Does the heat not go up? At first I have to admit that I was reluctant. But after various tests I had to change my mind!
This coating, consisting of a foam (solid) to which aluminum foil is attached. It helps the top to retain heat, especially in the outermost areas where it is not exactly homogeneous.
The heating of the plate works like that of the nozzle, with a PID system, and being able to conserve the heat greatly reduces the cycles of turning on and off the heater. As we will see in the article on the determination of the cost of 3D printing that will be published soon, the plate is the absolute part that consumes the most energy. And so reducing the consumption of this part brings a sure saving in the bill.
If we combine this with even less effort of the card (or where there are mosfets) we ensure a longer life to all the electronics of the machine.
The addition of an insulating panel under the plate is also quick and easy, so why not do it?
To summarize, this coating guarantees us a saving of energy and it follows that the electronics is less solicited by continuous ignition and shutdown.
Adding an insulating panel under the bed: how to perform the operation
Necessary to install the insulating panel:
The only operation to do is to cut the insulating panel that fits perfectly on the plate. Unhook the screws of the bed, turn it and apply this insulating adhesive panel. Of course taking care to cut out the spaces where the screws and springs will be placed. Reassemble everything and you will be back on track, being able to print… saving!
I wanted to try it on one of my printers. Specifically, I’m talking about the CR-10. I’ve had this machine for a long time, and as long as PLA is printed no problem. When you switch to ABS, having to bring the plate to a temperature of 90 degree takes a long time. Maybe also because being 12V and having a bed quite big is hard to get into temperature. I took advantage of buying this insulating material to run a test on the CR-10.
Then time as it takes to heat the plate to 90º C before and after the upgrade. From the value that will come out I will also be able to understand if there will be a real economic saving given by the fastest heating.
With the plate at room temperature of 16°C I turned on and brought it to 90°C. The first test, without insulation, took about 45 minutes and 22 sec. I expected such a figure because it actually takes forever!
For the second test I installed the insulation 30×30. The installation was very simple. I removed the plate and cut the insulation at the vertices and diagonally up to the screw. I put the material down and slowly I started to remove the paper from the adherent surface and it glued firmly in a flash.
If you want to make this upgrade do not worry even if it is not well laid. The important thing is that it is there!
If you would like to know how halve the waitings in the prints to see the first layer look the guide just below!