Dead wizzard DT - transplant help

[skelfie]

Hi folks
I have a a wizzard DT (Suregrave) which after many years of sterling service has rolled over with a failed logic board. Sadly Suregrave tell they have no more replacement logic boards.
So since the rest of the unit is fine and built like battleship I was wondering about buying one of these chinese 3 axis logic boards to resurrect the beast.
Problem is I think the Z stepper is a different rating from the X-Y does anybody know this is feasible or do just need to tow it out to sea and open the seacocks?

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[john-100]

Hi skelfie


without knowing any details of your motors or stepper drivers
I cannot be 100% sure if a chinese board can be made to work

if the switches on the chinese board cannot give you the required current
for the three motors ,
you could possibly change the current sense resistors

but look here first ---http://www.cnczone.com/forums/general_electronics_discussion/110986-how_i_fixed_my_chinese.html

people have had mixed results with chinese boards

I would prefere to use a breakout board and separate drivers

John

[skelfie]

Thanks for that John, I'm going to try and find the spec of the stepper motors and take it from there

cheers

[PenTrophy]

What was the outcome of your repair to the Wizzard. In the US we have a very good repair shop for Dahlgren/Suregrave.

www dot ltdengraving dot com Home

[quiachmaker]

Well it's now six years later and I have finally got round to resurrecting the Old Wizzard DT, with cheap controllers off ebay.
It's been so long I've lost my original Skelfie account so I just created a new account to save time.
Had to build PC with a parallel port using bits from the spare part bin, but it's whizzing along nicely using LinuxCNC.
Next job is build a case for all the gubbins so it doesn't look so much like an IED
I've been using a Roland MPX-80 in the mean time, but as it's down to it's last couple of pins I decided to finally get the the old Frankenstein box back in action
It nice having the old beast back in play