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- Pader commented on Sergey_EnduranceRobots's instructable Diode Laser Etching of a PCB. DIY From a to Z.1 year ago
- Pader commented on Tom McGuire's instructable Easy to Build CNC Mill Stepper Motor and Driver Circuits2 years ago
View Instructable »I have been theorising on building a numerical position display on my CNC machine using an up/down counter. Could you enlighten me as to whether the DIR+ and DIR- signals to the stepper drivers are at the same potential or is one signal the absence of a 'high' level?
- Pader commented on vreinkymov's instructable PCB Etching Solution - Cupric Chloride2 years agoView Instructable »
This is a useful link for chemical compatibility too: https://www.coleparmer.com/Chemical-Resistance
- Pader commented on A Whatmough's instructable Getting Started with HSMXpress2 years agoView Instructable »
Hello,I have HSMXpress loaded and registered into Solidworks but I can find no trace of it in the menu system. There certainly is no 'CAM' tag.Can anyone set me in the right direction?
I have made a number of instrument fascias using acrylic sheet using automotive, matt black spray that my laser etcher burns through easily. It has the advantage of drying quickly if laid on in one or two light coats (hold it up to a light source to check coverage between coats). In the case of the fascias, I gave a light spray with a white compatible spray over the etched areas to achieve professional quality fascias.I have no doubt that the same technique can be used for PCB etching but obviously, omitting the white spray part.