The Craftmans Shop > New from Old
Resurrection of a CFEI 100 KVA Induction Furnace
vintageandclassicrepairs:
Hi Andrew,
I despaired when I saw the contactor in bits :(
I wonder if there is moisture getting into the unit? due to the condition of the trip unit?
Does it have an internal heater to prevent condensation? if not I would add one (main fed)
I really hope you are sucessful in getting the furnace going again
If I had access to my old workplace I'm sure something could be found that would work? sadly that's not possible
John
hermetic:
Could you not superglue it back together just to see how it works, my feeling is that the slope on the hook contacts the broken off pieces and is pushed to one side till it passes the "obstruction", and then latches, but it is very difficult to sus it out without having the mechanism in front of you! Could you cast one in aluminium using the repaired original as a pattern? At this scale the shrinkage may not be that important, you could add a few coats of high build paint to thicken it up a bit!
Phil
mattinker:
--- Quote from: awemawson on December 01, 2022, 11:41:55 AM ---So now the priority is to mend or replace the contactor.
B/ 3D model it, print in PLA and get it lost PLA cast in bronze.
Lost Pla's the way to go!
Cheers, Matthew
I'm leaning towards option B - it worked well when I needed that drive dog for the Beaver lathe live tooling. I'm not even sure my copy of Fusion 360 is still operable - not used it for over a year and they have a habit of chucking you out !
--- End quote ---
awemawson:
Thanks chaps for your input.
Phil, those broken lugs take the full force of a very strong spring which is why they've broken off - sadly superglue won't be strong enough.
Yes lost PLA is what I'm shooting for.
This morning I steamed up my copy of Fusion360 and it forced me to do an update as I've not used it for a long time, and now it seems I'm on a 30 day limited trial.
Actually remembering how to use it is proving difficult - it's not at all intuative to me.
. . . . Where's Jules when you need a 3D model . . in fact thinking about it, he's not been arround in quite a while - I hope he's OK :scratch:
vtsteam:
Andrew, if only you had industrial quality cnc machinery and a foundry you could machine a pattern and cast and finish it yourself. :poke:
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version