heatbed loose connection
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Ive just finished assembling my new printer and have been having problems with the heated bed. ive establised that the cause of the problem is a loose solder joint on the bed- screw terminal on the duet board. I tried to reflow the joint but have been unable to get the solder bead to re-attach to the pcb, i should have probably tried to exchange the board before attempting to repair it my self but i assumed this would be a no go as i bought the board over a year ago from e3d. I can only assume that this joint was faulty when i bought the board as this is the first time it has been used.
Anyway i am wondering since im driving the heat bed with an SSR would i be able to use a ground pin elswhere on the board to bypass the problem? or could i try and remove the screw terminal entirely and solder some leads directly to the board? Im trying to avoid having to buy a new board before ive even got the printer working properly. -
This is getting realy frustrating, nothing I try will get this joint flowing properly. Any ideas what I can do here would be much appreciated.
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Do you have a photo of the pin before trying to fix it?
There's a lot of copper under there, so you're going to need a powerful soldering iron (or two lesser irons) to be able to dump enough heat into the area before it dissipates.
Since you are using an SSR you can use a different output to control it other than the bed heater output. If you have E1heat open that would be the logical choice.
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@Phaedrux Unfortunatly i dont have a picure of how it was before, i noticed the problem by moving the header and seeing that the pin on the back was also moving. E1 is currently open but i did plan to add a second extruder in the future. would it be possible to use a couple of the pins on the expansion header to drive the SSR?
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@Fisher You can use a fan header if you have a spare one to drive an SSR.
You can also use pins on the expansion header for a heater or a fan. -
@jay_s_uk Thanks, Can anyone give me some guidence on how i would set up one of the heater pins on the expantion header to control the SSR?
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Post your current config.g and your firmware version and we can give more specific direction on what exactly to change. Easier if you're using RRF3.
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We've decided to offer to replace this under warranty if you wish, despite the extended time since purchase, because the defect was likely present at time of manufacture. If you would like to pursue that, please contact E3D and explain the situation, reference your original purchase, and include a link to this thread as authorization.
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@Phaedrux Thats very gracious of you, thank you very much.
