Typical heatup times for Onyx bed?

[dsnettleton]

My Onyx bed can take twenty minutes or more to heat all the way up to 100 C. It seems to me like it shouldn't take nearly as long, but I'm not sure what's typical. I tried adding two more yellow/black wires from the power supply to my RAMBo board in an attempt to get more current, but it didn't seem to do much good. Are my warmup times normal, or do I need to do some troubleshooting?

Thanks,
--D. Scott Nettleton

[Polygonhell]

20 minutes sounds about right if you have a glass bed on top.
With the Boro glass plate on, mine won't exceed about 96 even if you give it forever.
It's a lot of surface area that's radiating all that heat away, and it's only getting about 130W of power to heat it at 12V.
You'd need to increase the voltage to get it to heat faster.
If the wires aren't getting warm they are probably not a significant limitation, basically they affect the rate of heating if they contribute significantly to the overall resistance, and if they do that then they get hot.

[dsnettleton]

That answered my question; I have a boro glass, so I guess I'm lucky.