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Swap a non ttl 2w for a 5.5w ttl. Very cheap Chinese

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subvaperjim
Posts: 1
Joined: Thu Sep 07, 2017 9:23 pm

Swap a non ttl 2w for a 5.5w ttl. Very cheap Chinese

Post by subvaperjim » Thu Sep 07, 2017 9:49 pm

Hi all, I think my setup and question may be a little low brow from what I have seen on here so far but I'm going to ask anyway in the hope one of you will have done the same in the past.
I have a small 2w eleks type chineses cheap and chearful engraver, I got it all up and running no problem (I build 3D printers)
The laser did what I required but was taking up to 20 passes to get the desired makings I wanted,
I recently saw a 5.5w for under a £100 on aliexpress on a sale so thought why not and got it.
The trouble I am having is the ttl side of things I purchased a v3 uno shield and assume I have set it all up correctly
I have installed grbl1.1 but the laser just comes on low power as soon as power is applied.
From research the ttl goes to the z+ pin on the board with it being the v3. I have also tried it on the spindle pin just incase but that didn't work either.
So have I got the firmware wrong,have I wired it wrong?

Any help anyone can give me will be greatly appreciated.
If it's a question that's been asked a 1000 times before please accept my apologies I did scan through the threads but couldn't see any thing.
Some photos for your amusement
Attachments
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Cheap shield
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Cheap ttl
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Cheap laser
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Yep I know you get what you pay for
image.jpg (1.3 MiB) Viewed 587 times

agisorieri
Posts: 7
Joined: Fri Sep 15, 2017 5:41 pm
Location: USA
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Swap a non ttl 2w for a 5 5w ttl Very cheap Chinese

Post by agisorieri » Thu Oct 12, 2017 5:37 pm

they are very small you will be surprised---on the rear thats the ONLY place to put them Are you doing 3? if so then you will be good to go with that placement just under the bar

JohnCifu
Posts: 2
Joined: Mon Oct 09, 2017 1:59 pm
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Swap a non ttl 2w for a 5 5w ttl Very cheap Chinese

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