Products > Test Equipment
Siglent SPD3303X-E Binding Post Issues - Solved
orzel:
--- Quote from: bsudbrink on March 17, 2018, 10:19:51 pm ---With the generosity of Gandalf_Sr, I replaced the binding posts on my SPD3303X-E. I figured I would put up a few pictures because I know people like to look.
--- End quote ---
Not sure why you opened the gear. The color part of the binding post is the only thing that need to be modified, and it's easy to pop them out.
Not that you really need an excuse for a teardown, of course ! :-+
orzel:
Hi there. Just to report my experience. I have a fairly recent version of spd3303x-e, so presumably with the new kind of BP. And nope, they really still are not good, half of my plugs wont fit, or loosely fit.
Thanks to the original post, i did exactly the same, and made the opening (just slightly) larger. And indeed, it's far better. I dont have the magic 'step drill' tool, so i just used an electrical screwdriver with a cross head, and i went 'gently'. The color plastic is quite easy to machine, so it was easy. I did it directly, without opening the power supply, with the BP still in place. I unscrewed them so that the plastic part is further away from the internal metallic part.
Some photos will explain. The one from front show the two posts on the right 'drilled' (and not yet cleaned). The hole is larger. The other posts aren't done yet, for comparison.
Then a (red, not cheap) plug is used on the green (original) post : wont got far, and is loose. The same plug used on the machined post, goes further, and is firmly attached.
Thanks a lot to the original post !
RAY5D:
Hello, I have the same device and encountered the issue as well. My solution was to trim down the plastic parts pretty aggressively. The result is pretty good so I wanted to share some pictures.
The basic procedure is:
1. Remove the color rings, those are just pressed in, you can jam a blade in from the edges, use a hook, or screw in a properly-sized self-tapping screw and pull on the screw.
2. Use a drill press to remove the majority of the excess height. One way to keep them in place is to screw the posts on a scrap piece of board, and clamp that onto the platform. I used a milling bit because it makes a flat surface.
3. If your drill press and skill is good then you're all set, but my drill press is crooked and I drilled them to different depths. So I 3d printed a jig, and sanded all of them flat and to the same length.
4. Put the parts on a drill (the same drill press might work too but I didn't try it), spin the drill and sand the edges to create a fillet, otherwise the edges will be hard on your fingers when using the power supply.
Of course the color-coding will be lost after this modification, but there are labels on the front panel, so it should be fine.
Grinding jig 3D model attached, I got it a little too tight, so make sure your printer tolerance is dialed-in, even then it might take some effort to push the connectors in and out.
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