Greetings! I have a strange problem with a Rambo 1.0 board that I have been using for some time with no problems: The Hot End Temp will reach its target temp (240C) but as soon as the machine starts to print, the temperature starts to drop...and drop fast! I have checked all of the setting in the repetier firmware (unchanged from last successful print) and in Repetier-Host and the G-code and the only commands concerning temp are at the top of the g-code and at the end of the g-code. There are no settings within Repetier-Host that change temp once the target temp is met and printing begins. Any thoughts? Any and all help will be appreciated! The rest of the system is a Budaschnozzle 2.0 and a heated bed. (Bed temp is stable) T. https://reprap.org/forum/read.php?13,517160,517160#msg-517160 Thu, 16 Apr 2026 07:01:23 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?13,517160,518231#msg-518231 https://reprap.org/forum/read.php?13,517160,518231#msg-518231
Some slicers, depending on the setting, will change the temp mid-print. For example, it is common to have a higher temperature for the first layer. This is usually specified as a slicer option.

But other than that, two commands is generally what you will see.]]> jbernardis Controllers Fri, 05 Jun 2015 21:46:47 -0400 https://reprap.org/forum/read.php?13,517160,518119#msg-518119 https://reprap.org/forum/read.php?13,517160,518119#msg-518119
Well, it would seem that the temperature problem was buried within the part I was trying to print as when I printed something else...everything was fine: all temps stable!

I looked through the G-code for the problem piece and there were only two instances of the M104 S command: at the top of the g-code and at the end...nothing in between.
In going back over the testing procedures, it seems as if the drop in temp started at the change from layer 1 to layer 2. The other piece I tried made it to layer 6 with all temps stable.

Has anyone else ever had this problem?]]> Tsenneville Controllers Fri, 05 Jun 2015 13:24:57 -0400 https://reprap.org/forum/read.php?13,517160,517532#msg-517532 https://reprap.org/forum/read.php?13,517160,517532#msg-517532
Also check the thermistor isn't loose in the hotend.]]> frankvdh Controllers Thu, 04 Jun 2015 05:01:50 -0400 https://reprap.org/forum/read.php?13,517160,517308#msg-517308 https://reprap.org/forum/read.php?13,517160,517308#msg-517308 jbernardis Controllers Wed, 03 Jun 2015 14:22:04 -0400 https://reprap.org/forum/read.php?13,517160,517160#msg-517160 https://reprap.org/forum/read.php?13,517160,517160#msg-517160
I have a strange problem with a Rambo 1.0 board that I have been using for some time with no problems: The Hot End Temp will reach its target temp (240C) but as soon as the machine starts to print, the temperature starts to drop...and drop fast! I have checked all of the setting in the repetier firmware (unchanged from last successful print) and in Repetier-Host and the G-code and the only commands concerning temp are at the top of the g-code and at the end of the g-code. There are no settings within Repetier-Host that change temp once the target temp is met and printing begins.

Any thoughts? Any and all help will be appreciated!

The rest of the system is a Budaschnozzle 2.0 and a heated bed. (Bed temp is stable)

T.]]> Tsenneville Controllers Wed, 03 Jun 2015 09:16:31 -0400