Summary of Contents for AXiS MODULAR BiTBUDDY
- Page 1 BiTBUDDY BUILD GUIDE V1.2 Hello fellow DIYer! Thank you for purchasing BiTBUDDY. BiTBUDDY is an expander module for the Music Thing Modular Turing Machine Eurorack Module. You can find out more about the Turing Machine here.
- Page 2 BiTBUDDY can connect to the Turing Machine via either the Pulses or the Gates expander header pins via the supplied cable and should not be connected to anything else. Please do not attempt connecting to your system power rail. —------------------------------------------------------------------------------------------------------------------------ This is an ideal intermediate DIY soldering project for you which includes not only through hole parts but contains SMD resistors too.
- Page 3 There is also an excellent video on Youtube by PNP Modular on how to solder SMD: Hand Soldering 0603 SMD SMT with a practise board By undertaking the construction and soldering yourself you agree that it is your responsibility to complete the final build safely and confidently. This kit is sold exclusively through Thonk and you can find full terms and conditions here.
- Page 4 BiTBUDDY BOM Name Designator Footprint Quantity Check R1,R2,R3,R4,R5,R6,R7, 1 1k R8,R9 0805 SMD RESISTOR LR1,LR2,LR3,LR4,LR5,L 2 2.2k R6,LR7,LR8,LR9 0805 SMD RESISTOR GATES OR PULSES 10 Pin connector PULSES OR GATES 4 Thonk jack 1,2,3,4,5,6,7,8,CLOCK THONK MONO JACK 5 3mm LED...
- Page 5 Begin by soldering the 1k resistors R1 through to R9 onto the PCB as shown. I use the technique where you add a small blob of solder to one pad, heat and then move the SMD part in place using your tweezers. Next solder LR1(indicated by 2201), these are the 2.2k resistors connected to the LED’s in the circuit.
- Page 6 2. Pulse/Gates connector socket. Add the 10 Pin IDC connector as shown making sure to follow the silk screen printed on the PCB. The arrow on the connector indicates pin 1 as does the square pad on the PCB.
- Page 7 You can hold the connector in place with some masking tape or by holding it carefully in place whilst turning over the PCB before soldering. I usually only solder 1 of the pins first and check the position, you can then re-adjust if you need to.
- Page 8 3. Mono Jacks Next place all the mono jacks as shown but do not solder yet.
- Page 9 4. LEDs In your kit you will find 9 LEDS, the long leg is positive and short negative. So place the LED legs through the holes as shown. Positive is indicated by the + sign on the PCB. Again do not solder yet.
- Page 10 5. Panel In your kit you will find either a 4hp panel or a 1u 20hp panel depending on the type you purchased for your eurorack system. As the LEDs are flat they need something to hold them flush with the panel, place some masking tape over the LED holes to help with this.
- Page 11 Next carefully place the panel over the jack sockets, add the nuts to hold the panel and carefully seat the LED’s into their holes. Turn over and solder the jack pins first one at a time making sure the jack sits flush with the PCB.
- Page 12 Once finished, remove the tape from the front of the panel and trim all the LED legs and reflow.
- Page 13 Note: You will notice that once you have connected the BiTBUDDY to either the Gates(recommended) or Pulses breakouts on the back of the Turing Machine(or other expanders) that there will be no lights or voltage output from the BiTBUDDY until you have patched in a cable.
- Page 14 BiTBUDDY MANUAL...
- Page 15 ● Width: 4hp or 1u depending on which kit purchased ● Depth: 25mm Approx ● Power: Passive(does not require power) Image: Patch example for using BiTBUDDY connected to the Gates or Pulses out from the connector on the back of the Turing Machine.
- Page 16 BiTBUDDY Build Guide and Manual V1.2 March 2024...
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