Search found 32 matches

by Asadinator
Thu May 03, 2018 10:55 am
Forum: Software
Topic: Heating extruder only on printing moves
Replies: 18
Views: 1245

Re: Heating extruder only on printing moves

Solved! 8-) As mentioned before I modified the check_axes_activity() function as follows: while(block_index != block_buffer_head - 1) to while(block_index != block_buffer_tail + 1) which instantly disables extruder when not an extruder move. Also ignore my stupidity from before, I later tested this ...
by Asadinator
Thu May 03, 2018 12:47 am
Forum: Software
Topic: Heating extruder only on printing moves
Replies: 18
Views: 1245

Re: Heating extruder only on printing moves

If #define DISABLE_E isn't doing it, then I'm going to have to go back to Ed's suggestion of you're pushing Marlin a little too far out of its comfort zone. ;) :D I dug deeper and found a check_axes_activity() function called at the end of inactivity in Marlin.ino. This is independent of a default ...
by Asadinator
Wed May 02, 2018 11:45 am
Forum: Software
Topic: Heating extruder only on printing moves
Replies: 18
Views: 1245

Re: Heating extruder only on printing moves

And I forgot to mention, using manual control on RepetierHost, when you press extrude it successfully worked by turning on and then off.

There are a few other things I can play with to understand why it didn’t go off on travel moves when printing.
by Asadinator
Wed May 02, 2018 11:20 am
Forum: Software
Topic: Heating extruder only on printing moves
Replies: 18
Views: 1245

Re: Heating extruder only on printing moves

You might be able to use Marlin's "DISABLE_E" configuration option, which will disable the stepper driver immediately when it's not being used. You can then swap the E0_ENABLE and HEATER_0_PIN numbers in pins_RAMBO.h. Make sure your TEMP_SENSOR_0 is 999, and TEMP_SENSOR_BED set to 998, and DUMMY_TH...
by Asadinator
Tue May 01, 2018 10:38 pm
Forum: Modifications
Topic: RAMBo plug types
Replies: 5
Views: 445

Re: RAMBo plug types

insta wrote:They are. Make sure you use wire ferrules when adding wires to them. DO NOT USE TINNED WIRES.
Thanks insta.

I also read online that all mosfet outputs are PWM regulated.
If the heat and fan is set at 100%, does that mean I will get the constant on 24V DC from the power supply?
by Asadinator
Tue May 01, 2018 1:15 pm
Forum: Modifications
Topic: RAMBo plug types
Replies: 5
Views: 445

Re: RAMBo plug types

I had a further dig online and found them on Ultimachine website.
https://ultimachine.com/collections/ele ... 08mm-black

Are they these Eurostyle pluggable terminal blocks at 5.08mm pitch correct ones for mofset outputs?
by Asadinator
Tue May 01, 2018 6:22 am
Forum: Modifications
Topic: RAMBo plug types
Replies: 5
Views: 445

RAMBo plug types

Hi everyone, I might have a stupid question: I am trying to find out the plug types for the 2 pin mofset outposts on the RAMBo. I would like to connect it to wire leads, so am looking for a screw type of connection on the plug that lets me attach wire leads to the mofsets. Without soldering. Anyone ...
by Asadinator
Mon Apr 30, 2018 4:06 am
Forum: Software
Topic: Heating extruder only on printing moves
Replies: 18
Views: 1245

Re: Heating extruder only on printing moves

You want pins_RAMBO.h, or a MUCH newer version of the firmware than you're using. Your "no thermistor" and "dangerous moves" will probably be fine. Thanks Insta, it worked so far, I don’t get thermistor error and I can operate extruder. Another query -> I would like to monitor when the heat0 output...
by Asadinator
Sun Apr 29, 2018 12:13 pm
Forum: Software
Topic: Heating extruder only on printing moves
Replies: 18
Views: 1245

Re: Heating extruder only on printing moves

You might be able to use Marlin's "DISABLE_E" configuration option, which will disable the stepper driver immediately when it's not being used. You can then swap the E0_ENABLE and HEATER_0_PIN numbers in pins_RAMBO.h. Make sure your TEMP_SENSOR_0 is 999, and TEMP_SENSOR_BED set to 998, and DUMMY_TH...
by Asadinator
Fri Apr 27, 2018 2:29 pm
Forum: General Discussion
Topic: Linear Mode Power Supply
Replies: 7
Views: 599

Re: Linear Mode Power Supply

After further discussion with supplier, apart from noise it seems a switching mode power supply would still work for my application.

That’s a relief. Thanks for your help anyway gents.