If you find that your Creality CR10 heat bed takes forever to heat up, and won't reach temperatures needed for ABS then adding a Keenovo heat pad can provide a good soloution. However the cost of these is prohibitive. So check out the following which offers the heat bed at about 25% of the "normal" price:


WARNING: These heat pads are connected directly to MAINS VOLTAGE and could be VERY DANGEROUS for people who aren't familiar with wiring mains powered goods. The result of miswiring could be LETHAL. Please ask a qualified electrician if you aren't comfortable with such wiring.

ALSO: The mains voltage requires the use of a SOLID STATE RELAY (SSR). A suitable SSR can be found here: