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2 Tronxy X5S Bed Upgrades Three Upgrades eeded Insulation of Heat Bed Install offboard power to drive the Increase Voltage driving the from 12Vdc to 20 Vdc BED Insulation I Installed the insulation scheme described by DIY3DTECH; It works GREAT and was very low cost. ink: Install Power to drive the You must add a high current control board (ebay See parts ist) This is required as we will be increasing the Bed Voltage ABOVE the 12VDC level available on the Control Board. The Heat bed interconnect scheme on the Control Board are insufficient for higher power levels (Connections are known to overheat and unsolder at high current levels) Installed a EW POWER SUPPY to increase the Bed voltage from 12 Vdc (stock) to 21 VDC. Two upgrade options are available: 1. Add a Second 2024VDC power supply and connect it to just the This approach has been well discussed by others and is not detailed here. 2. Add a Second 812 VDC (at least 20 AMP) I SERIES with the existing 12VDC power supply to run the Heat Bed I added a 2 nd, 8.5 Volt supply. This is the power supply scheme detailed in this guide RESUTS ACHIEVED: Excellent! Takes only 3 Minutes to go from Room Temp to 65 ⁰C Takes only 4 Minutes to go from Room Temp to 80 ⁰C UPDATE OTE: This document has been updated to more completely explain Series Power Supply approach. I trust this will answer those with questions! 2

3 HEATBED 1.4 Ω How do SERIES Power Supplies Work? Just like a multicell flashlight, power sources may be connected in series to increase the total available voltage Flashlight Schematic How does the heatbed SeriesPower Supply method work? Just like the flashlight example, a 2 nd power supply may be connected in series with the existing 12 VDC power supply to increase the total available voltage to the heatbed. Bulb OOFF Switch Cell #1 (1.5 V Battery) = EW POWER SUPPY ( VDC, 40A) AC I Power Switch 20.5 V to Heat Bed Cell #2 (1.5 V Battery) Cell #3 (1.5 V Battery) (STOCK 12 VDC, 30A) AC I 12 V to control board, steppers & hot end Voltage across the lamp (V ) is V = Cell#1 Cell#2 Cell#3 V = V = 4.5v Why use a series power supply? A series connected 812VDC power supply is just a good as a single 24 VDC power supply and may be lower cost solution to a heatbed upgrade CAUTIO: Be sure to use adequate gauge wire (12 Ga Minimum) and fully tighten all wire lugs and terminal screws for all power wiring, no mater what power supplies you add! 3

4 HEATBED 1.4 Ω How is Power Delivered and Shared using a Series Power Supply? Basic Electrical Math _Amps = _Volts _Ohms _Watts = (_Amps 2 ) x _Ohms Alternately, _Watts = (_Amps) x _Volts Upgrade Summary It is seen that when using a nominal heatbed resistance of 1.4 ohms, the total heat bed power using the stock 12VDC power source is limited to about 100 watts. After increasing the power source from 12VDC to about 20.5VDC it is seen that the total heatbed power increases to about 300 watts. The table below shows how the heatbed power is shared between the stock power supply () and the added, 8.5 VDC power supply (). The stock 12VDC power supply has enough capacity to power the steppers and hot end even after increasing the overall heatbed power to 300 watts. = EW POWER SUPPY ( VDC, 40A) AC I (STOCK 12 VDC, 30A) AC I Power Switch 12 V to control board, steppers & hot end 20.5 V to Heat Bed Power Supply Configuration Volts Volts Resistance (ohms) Total Headbed Volts Total Head Bed Amps Total Headbed Power (Watts) Amps Amps Watts Watts UMODIFIED STOCK COFIGURATIO WITH SERIES POWER SUPPY UPGRADE 12 A A A POWER SUPPY SPECS: Stock Power Rating: 30 AMPS, Added Supply Rating: 40 AMPS ote: Voltage drops in wiring and across switch are fairly small and therefore, are ignored in the above calculations. 4

5 Heat Bed Upgrade Parts ist Description Reference Sourcing Example Other otes POWER SUPPY IPUT VAC OUTPUT VDC 20 to 40 DCA Mounting Plate & Misc Mounting Hardware Switching Module User Design and Fab SWITCH 1 12 Ga Wire As eeded ebay, Digikey, etc Mean Well HRP3007, see ebay: PowerModuleHighCurrent210A UpgradeRAMPS AT ?epid= &hash=item 2f0e3b4e3b:g:0~EAAOSw1aVZ2ehU others Select Switching Power Supply for best efficiency. Must have FOATIG OUTPUT (not ground referenced) Scrap plastic or metal panel. 3D printed panel as designed by user is another option. ebay: HeatedBedPowerModuleHighCurrent210A UpgradeRAMPS AT ?epid= &hash=item 2f0e3b4e3b:g:0~EAAOSw1aVZ2ehU Use 50A Mosfet Module as is available from Many sources. Wire terminals As eeded ebay, Digikey, etc Be sure to use & properly crimp all terminals! The following Additional Optional items are only required if AUX COTRO PAE is desired. Description Reference Sourcing Example Other otes Dual DVM Module with 50A current SHUT resistor 0100 VDC 050 Amps DVM ebay: 50A100ADualDigitalEDRedPanelAmmeter VoltmeterShunt Choice ?hash=item4d699fe574:m:m MyQPukFivm1pgPHnTas5EQ Multiple options are found on ebay. Select one that includes a SHUT so that it can measure up to 50 AMPS. Panel Switches S1\W1, SW2 ebay, Digikey, etc Many options are found on ebay. Misc Hook up wire As eeded ebay, Digikey, etc For connecting DVM & switches. Control Panel Plate Misc Mounting Hardware User Design & Fab As eeded Scrap plastic or metal panel. 3D printed panel as designed by user is another option. 24VDC ED Strip As eeded ebay & others. Select for yourself Many options. I purchased some foot long, surplus 24VDC strips that worked well. 5

6 Heat Bed PS & Upgrade 50 Amp SWITCH Top View DC I To Heat Bed egative Positive CAUTIO: 1. Add new AC wires to carefully! US color codes are shown in this schematic but my X5S came from the factory with different (European?) wire colors. 2. Be sure to properly tighten all wire terminals & terminations. Undertightened connections (especially tofrom Power Supplies, head bed & Board!) can result in over heated connections that lead to fire andor failures! BK, WHT, GR (18 GA) AC MAIS CT BRD COOIG FA = EW POWER SUPPY ( VDC, 40A) AC I AC I (STOCK 12 VDC, 30A) 12 Ga Output V SYS (12.0 VDC) X5S CT BRD 12 Ga 12 Ga 12V DC IP V BED ( VDC) 12 Ga 12 Ga BED Connect to Control Board BED output \ 12 Ga SWITCH DC I BED OUT CT To Heat Bed 24Ga Ribbon wire All wires 22 GA unless otherwise noted TROXY X5S HEAT BED PS UPGRADE 6

7 SHUT Heat Bed PS & Upgrade DVM (wdvm & ights) AUX CT P Stage ights SW1 = Stage lights OnOff Connector Block SW2 = Show System OR Heat Bed Volts AMP Meter = AWAYS shows Heat Bed Current One (or more) 24 VDC ED ight Strips for stage illumination O SW1 OFF SYS SW2 BED 50 Amp SWITCH Top View DC I To Heat Bed DVM PWR (530VDC) (C) egative Positive CAUTIO: 1. Add new AC wires to carefully! US color codes are shown in this schematic but my X5S came from the factory with different (European?) wire colors. 2. Be sure to properly tighten all wire terminals & terminations. Undertightened connections (especially tofrom head bed & Board!) can result in over heated connections that lead to fire andor failures! BK, WHT, GR (18 GA) AC MAIS CT BRD COOIG FA ink to AMP Meter ZERO function: 22 Ga Multiconductor Cable = EW POWER SUPPY ( VDC, 40A) AC I AC I 12 Ga Output V SYS (12.0 VDC) (STOCK 12 VDC, 30A) X5S CT BRD 12V DC IP V BED ( VDC) 12 Ga 12 Ga 12 Ga 12 Ga BED 50A 75mv Shunt 12 Ga Connect to Control Board BED output \ 12 Ga SWITCH 1 DC I BED OUT CT To Heat Bed 24Ga Ribbon wire All wires 22 GA unless otherwise noted TROXY X5S HEAT BED PS UPGRADE 7

8 Heat Bed Performance 21.5 VDC) With these upgrades installed, It only takes about 3 Minutes to go from room temp up to PA temperatures (16 ⁰C to 65 ⁰C) With these upgrades installed, It only takes about 4 Minutes to go from room temp up to PA temperatures (16 ⁰C to 80 ⁰C) 8