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I suggested only the stuff below, for your application. (I forgot Dettox was renamed, I think at the start of the pandemic). The L&R cleaner was just to show that flammability is not a relevant point with ultrasonic cleaners.
(I do regularly use the L&R liquids in the ultrasonic cleaner which I...
A light source aimed downwards and two photo sensors - LDRs, phototransistors etc., with appropriate bias or load resistors.
Use tubes around the sensors to make them directional and "aim" them down near the centreline of the robot, each just slightly to it's own side (left or right), mounted...
Using flammable solvents in ultrasonic cleaners is quite common practice.
eg. Such as the cleaner below.
(Some people use Benzine or isopropyl alcohol rather than this or the matching L&R rinsing solvent).
Simple green is apparently very good, though very expensive (at least in the UK).
Another good cleaner I use lot of - "Dettox" or the supermarket own brand versions; clear general purpose no-rinse kitchen surface cleaner. It's pretty much the same as industrial grade cleaning sprays, even good...
That cable is trivially odd, but not in any way dangerous.
These, on the other hand - I do not know how it can possibly be legal to sell them?
Travel adapters that fits an earthed Schuko power outlet and takes an earthed UK three pin plug - with no earth / ground through!
It does say in the...
Try general purpose household cleaner / floor cleaner, in a fairly strong mix with water?
I use that (liquid flash or ajax) for such as watchstraps and jewellery etc., it is very effective.
Rinse thoroughly in clean water and give a couple of extra rinses in the ultrasonic.
For electronics, do...
Many normal switched-mode power supplies can work with DC in - the input just goes to a bridge rectifier and gets converted to DC anyway!
14V - is that to be used as a battery charger? If so you could do with a purpose-made one rather than just a basic PSU.
eg. Data on some Meanwell PSUs - if...
For sticking PTFE, you can use Loctite "All plastics" superglue - it comes with a fibre tip applicator of a primer (activator) that allows a good bond on PTFE & polythene etc.
You can also get the primer in a bottle with a brush for application, as Loctite SF 770. You can then use any generic...
I just nick the edge in line with a row of holes, then bend it starting from the nick - it snaps along the selected row of "perforations".
For better accuracy (or with fibreglass laminate stripboard), score both sides heavily along a row of holes with a sharp knife & steel rule as a guide, then...
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