I recently received some parts for deal extreme that will be used for reprap related projects.
From left to right:
- 1.5″ LCD Double Precision Portable Digital Electronic Weighting Hook Scale – Silver (45kg Max)
- Polyimide Heat Resistant/High Temperature Adhesive Tape (24MM*33M/260-C)
- FUJIK Silicone Thermal Glue (50ml Grease-Like)
- LodeStar Soldering Paste (50g)
- AMT Amtech Professional Soldering Flux (10ml)
I plan to use the scale to conduct peel tests of different print bed materials once I get a Mendel built. It could also be used for a range of tensile tests to determine if a plastic has undergone any changes to its flow stress after extrusion.
As an added bonus this scale also has an inbuilt digital thermometer for ambient air temperature readings.
The solder paste and flux will both be used for re-flow soldering components onto PCB’s for the Mendels electronics.
The heat sink glue compound I have used a lot in the past for attaching power LED’s to heat sinks. It seems to hold its strength even at high temperature. The aim is to be able to use this thermal adhesive to attach power resistors to a heated print bed so that they don’t need to be fixed with screws, which can be a problem for thin metal sheets.
With this in mind I used the thermal adhesive compound to attach a power resistor to a heat sink and let it cure for a few hours.
I then brought it up to temperature, measured with a thermistor, and tried to remove it from the heat sink. At around a 120ºC it remain attached. I was unable to get a good reading of the temperature above 120ºC as it falls out of the range of this thermistor.
I suspect this thermoset heat sinking compound could handle a lot higher temperatures, all be it with a reduced bond strength. Slightly roughening the surface before joining and leaving it to cure for longer could will also help.
So all in all, lots of useful things all for just over $20USD.