Malahit DSP2 back cover with folding kickstand and (optional) wireless charging

This replacement back for the Malahit DSP2 adds an integral kickstand and (optionally) Qi compatible wireless charging without requiring any mechanical or electrical modifications aside from removing and replacing the stock back cover. The kickstand is held closed by two small magnets.... it was designed for 5mm square by 1mm thick magnets but the more common 5mm round 1mm thick magnets from Amazon should fit the recess. I glue them in with a VERY small dot of Urethane glue (Gorilla Glue). The wireless charging is totally optional.... you can use the back without the wireless charging if you only want the kickstand. This replacement back includes provision for mounting a Qi coil and board internally, purchased on Amazon. The coil and board come with a foil sticker that helps magnetically isolate the coil from the magnetic effects of the battery.... don't lose it ;) I lay the foil on the coil and then add a thin piece of foam that gets sandwiched between the battery and the coil. It helps to tape things in place so they don't move as you install the back. The wires to the USB-C plug are routed out the side of the cover next to the USB-C socket. If you need the USB port for something, just unplug the charger until done. The original screws may work with the new back, but they are not recessed since I could not reliably print the flat bottom recesses and as a result may be a bit short. This back was designed for 2.5mm flat head screws from Amazon (the holes are easy to print) that sit slightly below the surface of the rear cover. The circuit connects to the radio via the radio's USB-C connector and requires no internal modifications. I replaced the wires that came with the wireless board (too short anyway) with some 26ga silicon wire. The USB-C plug is also from Amazon. It is a bit tall for my liking, and I have some lower profile plugs coming from Aliexpress. I'll update when they arrive. I also created a small cap to cover the exposed end of the USB-C plug. If you solder the wires to the board on the USB-C plug so that they face down, the cap should slide on and protect the board. While charging, there is some minor RF interference on some frequencies (mostly on the 10M ham band) but in general it is pretty quiet. It almost disappears when the battery is near full charge. Charge current seems to run about 0.5A. This is lower than expected (assumed due to the proximity to the battery) but gets the job done. Print the back with the outer surface down and enable supports to properly print the recess for the kickstand. The supports may be a bit difficult to pop out of the magnet recess ;) Since the hinge line passes through the top of the coil recess, the hinge is made from two lengths of steel music wire or carbon fiber. They can be removed if needed by using another L shaped length of 1.2mm wire and pressing them back out from the inside of the Qi coil recess. The holes for the hinges are designed as 1.2mm diameter but will likely print slightly smaller. Either use something like 1mm wire or drill them out to 1.2mm or ream them with a piece of 1.2mm wire, If the hinges are a bit stiff, that is beneficial as it will help hold the stand open if you pick the radio up. BOM: Qi compatible coil and board https://www.amazon.com/dp/B08RDMRZL5?ref=ppx_yo2ov_dt_b_fed_asin_title USB-C male plug with solder pads https://www.amazon.com/dp/B091CRLJM2?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 Screw assortment https://www.amazon.com/dp/B0B5CY5LY5?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 26ga silicon wire https://www.amazon.com/dp/B01CQJKC6E?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2&th=1 Magnets https://www.amazon.com/gp/product/B0BR5TT7YW?smid=A2NNCICTTSUF0V&psc=1