Testing 15 m/min feed rate for 3D printing purposes
Time to reinforce machine’s stand. Continue reading ‘Testing 15 m/min feed rate for 3D printing purposes’ »
Single LiPo cell protection and charger
Single cell lithium polymer battery cell is very handsome power source for many applications. Unfortunately it is quite dangerous when such battery cell is not properly protected and charged. I prepared simple 1S LiPo battery protection and Charger on two, single sided small PCB modules. I separated Protection from the charger when only protection is needed.
Continue reading ‘Single LiPo cell protection and charger’ »
RGB LED Badge
This is heart shaped four RGB led badge:
How to weld a thermocouple using two pencils
Power supply: 30V, 10A
How to make logo from DXF in Altium
This is simple tutorial, hot to prepare your favorite logotype in altium designer, either as overlay mask or in copper.
Step 1 – Draw your logotype. Prepare it as outline and save it in DXF or DWG version 11 or 12. Altium designer is very picky about that.
Isel stepper motor driver + Ultimaker original motherboard working
I’m so happy it works. So far only X axis.
I’m using +42V and +5V supply from Isel power brick to power Isel step drivers (X and Y). I also added MW switcher to get +12V supply for Ultimaker motherboard. Next step is connecting Y axis and adding stepper drivers for Z and extruder.
Full metal extruder for 3D printer
This is my design of an extruder for filament in wire shape. It is designed to precisely extrude plastic wire with 1.75mm in diameter. Extruder will be used on Isel cnc machine capable of driving 2kg spindle with high speed acceleration. Weight wasn’t an obstacle so I made it heavy duty.
I’m using small stepper motor with integrated gearbox which reduces it’s rpm and increases torque. Wire meets the gear with sharp edges which pushed wire further through heat sink to hot end.
Water cooling for 3D printer head
One modification instead of plastic-fatntastic parts and disposable air fan:
Low power DC/DC module with AS1337
This is small module for AS1337. The shematic is simple and provides all required components to operate AS1337. The PCB is 18x15mm miniature module with all pins at one side (S
USB to Alphanumeric LCD interface
This is simple, small interface between USB and alphanumeric LCD with 16×2 characters. It is using CDC class – Virtual COM port.
Microcontroller is from STM32 cortex M0 value line family: STM32F070F6. This small “gizmo” has very attractive price and good choice of peripheral devices, like ADC, USB, plenty of timers, etc… Really nice device in “DIY-friendly” package – TSSOP20.
