TARTARUS Heater Core Module! PTC chamber heater enclosure. Top Hat Voron 2.4
Description
PDF…Please be sure to hit like & post a make, I'd love to see your prints!
WARNING!
If you do not know how to wire this system correctly & safely I STRONGLY recommend you DO NOT attempt to print or use this model as you are dealing with potentiality dangerous situations with powerful heating elements & voltages if mains level is used!
All outcomes good or bad through the use of this or any of my other models or any information shared is totally 100% on you! I accept no responsibility or liability in whole or in part for any loss/damage/ingury/death to you or anyone else linked directly or indirectly through the use of this model or any information supplied here or elsewhere in my published works.
DIY ACTIVE CHAMBER HEATING IS POTENTIALLY DANGEROUS IF DONE WRONG!!
BY DOWNLOADING & USING THESE FILES & ANY ASSOCIATED INFO HEREIN YOU AGREE TO ACCEPT FULL RESPONSIBLY & LIABILITY FOR ANY & ALL RESULTING OUTCOMES OF THEIR USE. USE AT YOUR OWN RISK!
I provide no guaranty or promise that any information presented here is in any way accurate, safe or correct. Use it at your own risk.
Voron Design discourage the use of active chamber heating due to the possible inherent dangers if undertaken by the inexperienced user.
You have been warned, so please do not burn your house down! Seriously don't be that guy!
…I mean it, please be sure you know what you're doing & that your install & setup is safe for you & your family!
Description
This unit allows active chamber heating using a PTC heater of your chosen voltage & wattage on your Voron printer.
This unit is designed to mount to this…
Included here is a retrofit kit so you can easily install the heater core module if you have already printed & are using the above linked Top Hat! See Retrofit folder in the files tab!
& its designed to be powered & controlled by this…
It is compatible with the use of the standard Voron chamber LEDs.
This module MUST be fitted with a 120ºc thermal fuse to kill the system during an over-temperature event! Failure to do so is potentially life & property threatening! YOU HAVE BEEN WARNED!!
This module MUST be fitted with a thermistor directly connected to & monitored by Klipper to function properly & safely! Max temp should be 105ºc at the very most!
YOU HAVE BEEN WARNED!!
SAFETY FIRST!!!!
Get on Amazon & buy a pack of 120ºc inline Thermal fuses for your chosen voltage!!
SERIOUSLY YOU MUST HAVE THESE!!!
It must be installed on the main v+ power feed to your PTC heater & then placed in contact with the heater core in a location where it'll be subjected to the full heat of the unit when active!
The fuse MUST be CRIMPED inline with this power feed - DO NOT SOLDER IT!!
Seriously I'm not even joking, I'll say it again DO NOT SOLDER IT IN!
…What does solder do when it gets hot? Yep you got it. Melts!
Plus you stand a really good chance of popping the fuse by soldering it! So please be sure to crimp the fuse with the correct tools!
If you don't have them BUY THEM!!! This tiny little thing could save your life, your family's lives & your house & property! DO NOT OMMIT THIS!!!
Then insulate the fuse with some quality shrink tube insulation! IMPORTANT TOO! Don't buy cheap low quality stuff.
INSTALLATION
The Thermal fuse (Left red box below image) is properly insulated & installed here in front of the core of the heater.
The thermistor (Right red box below image) is installed in direct contact with the core of the heater & in direct airflow when the fan is on. Make sure your thermistor does NOT have continuity between either of its leads & any part of the heater core! IMPORTANT!
Also make sure its leads are insulated with shrink tube from the heater core!
Note: To install these units in the heater you will need to use a Dremel to cut away some plastic of the black cover so they fit correctly & are held securely but NOT pinched when assembled. Some silicone or thermal paste can help here if needed.
It helps to drill a hole for the thermistor in the black cover near the front edge, do not run the wires directly back in contact along the metal side of the heater core! You must keep the thermistor wires & metal core separated.
SECOND WARNING!
Failure to follow ANY of the above steps & warnings may result in seriously bad, expensive & possibly life threatening things happening! Again any & all outcomes if doing this are solely on you & are your responsibility & liability.
DO NOT PRINT & ATTEMPT THIS IF YOU ARE UNSURE OF HOW TO DO IT SAFELY!!
BOM
!!! Pack of 120ºc thermal fuses !!!
!!! Pack of cable butt crimps !!!
Crimping tool!
Metal jacket thermistor
PTC Heater 60x60mm 100w - choose voltage
Note: 12v units pull a LOT of amps!!
The PTC heater fan must be 6020 (recommended) or 6015
M3 heat set inserts Voron BOM (5x4mm) x7
M3 8mm cap head bolts x7
M3 washers x7
Optional: 1612 Mini Button PCB NeoPixel RGB LED (9mm) x1
Printing
Print in ASA/ABS or better to Voron BOM specs.
For best results print the TARTARUS Heater Core Module on its open rear face using tree supports as needed inside & on the right mounting face. You don't need support everywhere inside the model, just on the side there & a ring around the heater core aperture as shown below. You can print it on its front face with no supports but it tends end up looking a bit messy.
For the TARTARUS Heater Core Module NEOPIXEL Carrier file use supports for the very edge of the LED cavity just to help it print cleanly. Print in transparent PETG!
NOTE: The tolerances of all these models are VERY tight! With only 0.1-0.15mm clearance in some places!!! Make sure your printer is set up well! They require exact fits that snap together!
Also make sure you use small gauge wires & have good clean soldering skills for the NeoPixel! that gap is tight!
DO NOT LEAVE A BAD REVIEW BECAUSE THINGS DON'T FIT - THEY DO!
If things don't fit please look into the setup & current state of tune of your printer & slicer profiles. Please make sure you give yourself the best chance possible.
Assembly
Install the TARTARUS Heater Core Module HALO NEOPIXEL Masking Disc v1.0 into the TARTARUS Heater Core Module HALO NEOPIXEL Carrier v1.3 if used with some good quality CA glue.
Then install the wired up & tested working Neopixel facing up in the slot in the side of the TARTARUS Heater Core Module HALO NEOPIXEL Carrier v1.3 making sure not to damage it by forcing the LED into the slot. To avoid damage use the thinnest wire you can get (30-32 AWG). You may need to widen the slot slightly for a good fit depending.
Now insert the assembley into the rear side of the TARTARUS Heater Core Module HALO NEOPIXEL v1.0. Be gentle it'll be a tight fit, you might need to wiggle it side to side a little & push it past the crossbar of the main body until it snaps into place. Don't break things here!
Install the heat set inserts into main printed body
Cut the two tabs off the PTC heater's black plastic cover
Install the thermal fuse & thermistor as described in the sections above.
CHECK FOR SHORTS &/OR OPEN CIRCUITS!
Insert the Heater core assembly into the rear of the TARTARUS Heater Core Module HALO NEOPIXEL v1.0 with the PTC cables off to the right side as looking from the rear, it'll only fit one way.
Now secure with the TARTARUS Heater Core Module Bracket NEOPIXEL v1.0 with the M3 8mm bolts.
Print & install the Top Hat model with the appropriate mounting holes on your printer.
OR….
If you already have it installed but do NOT have the version with mounting holes, print & use the Retrofitting kit in the files section.
Place the printed templates on the left rear corner of the original top hat when looking at the printer from the FRONT & snap them into place. They are marked & only fit on way when the extension arms are touching the intended sides.
Use a 3.5mm drill bit to drill out the original top hat.
Be sure to drill at the same angle as the slanted sides of the top hat model & NOT horizontally. The results should look like this & align perfectly with the TARTARUS Heater Core Module HALO NEOPIXEL v1.0 mounting holes.
Now install the fully assembled heater module into the printer. Making your choice of cable routing.
Klipper Config & Use
The config below is for use with the TARTARUS Canbus & SSR Module, if you're not using this use it as a guide for the system.
The PID is set for a high powered AC heater running at 50% power! This has been purposefully set like this to lower the output as these PTC heater can be extremely fierce reaching intense printer melting temperatures!
DO NOT run yours at 100% power, it is dangerous to do so & will probably pop your thermal fuse within a minute or less. Then you'll have to strip the whole assembly to replace it!
No one wants that!!
DO NOT change the max_temp, as you want some headroom between the max temp for Klipper shutdown & the thermal fuse blowing.
Be sure to set your correct thermistor!
Before first use
- Test all connections to the system
- Double check all plugs & pins are matching & correct
- Double check your config
- Run for the first time with the heater powered down or disconnected from the SSR
- Check correct operation of the thermistor
- Check correct operation of the heater fan
- Check correct operation of the SSR
- Power the Printer off & reconnect the heater core
- Edit the max_temp to 60ºc
- Execute first test with the expectation that Klipper will shut you down at 60ºc
- If not be ready with the Emergency Stop button & power switch!
IMPORTANT
Ideally when in use you should NOT set a temperature above 85-90ºc!!
Macro Control
You now need some macros to control this heater module & NeoPixel LED.
Check out my highly adaptive & automated macro pack! Suitable for most Klipper printers.
Paste into your config!
[heater_generic Chamber_Heater]
gcode_id: CH
heater_pin: EBBChamber: PA1
max_power: 0.50
sensor_type: #### << Insert thermistor here!
sensor_pin: EBBChamber: PA3
control = pid
pid_kp = 6.952
pid_ki = 0.293
pid_kd = 41.192
min_temp: 5
max_temp: 105
[heater_fan Chamber_Heater_Fan]
pin: EBBChamber: PA0
max_power: 1.0
shutdown_speed: 1
heater: Chamber_Heater
heater_temp: 55
fan_speed: 1.0
[verify_heater Chamber_Heater]
max_error: 120
check_gain_time: 90
hysteresis: 5
heating_gain: 2
[neopixel Chamber_Heater_Neopixel]
pin: EBBChamber:PD3
chain_count: 1
color_order: GRB
initial_RED: 1.0
initial_GREEN: 0.0
initial_BLUE: 1.0
initial_WHITE: 0.0
[temperature_sensor EBBChamber]
sensor_type: temperature_mcu
sensor_mcu: EBBChamberPlease no remixes of this unit with the Voron Design logo added.
Model origin
The author marked this model as their own original creation.
