OK so my Saite head arrived this morning and it has come with two

Lasers
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OK so my Saite head arrived this morning and it has come with two washers, one with a recess. Can anyone please explain what these are for? Thanks Pete

67336c94fa04e7bb27f3c983b5e9a560.jpeg
67336c94fa04e7bb27f3c983b5e9a560.jpeg1024×768 382 KB

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question: is this usable for adjustable focus?

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are these for the different size lens that it can take?

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@Jeff_Kwait Apparently so, The brass finger screw undoes and the tube below the block slides up and down.

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Not that I need another head however…

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is this the one you ordered
http://www.aliexpress.com/item/CO2-Laser-Head-Laser-Engraving-Cutting-Machine-Engraver-High-Quality/32355354866.html?spm=2114.01010208.8.48.uTwh7n

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@Jeff_Kwait its similar but this is the one I ordered.

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@Jeff_Kwait Plus these mirrors and lens but they have not arrived yet.
http://www.ebay.co.uk/itm/172050707677

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I’d imagine the washers are as @Stephen_Sedgwick mentions, for holding your lens in position. Different washers for different sized lens. The one with recess possibly fits the standard 12mm lens.

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I just sent the seller on Ali a question about the mounting plate as listed in your ebay link did you have to buy a new mounting plate?

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@Jeff_Kwait haven’t tried mounting it yet Jeff. Someone did mention I would have to modify the plate. Probably make the home bigger.

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I have one of these, the washers are for holding the stock 12mm lens, if your using a 18mm you wont need them, though you will need to remove the knurled nut at the top of the block to get the laser to line up with the cutter heads mirror…this is how I did it:

https://plus.google.com/photos/photo/107264773673623393202/6285823043333439618?sqid=118113483589382049502&ssid=d2773326-fff1-4c8b-9ae1-c825d14eed20

And regards the plate, yes you will need to open up the stock hole and shim the head in place, or get one of the alternative large hole plates from Saite if fabricating your own is not an option.

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@Pete_Sobye can you show photo of it installed in your machine please?
mine just arrived and I installed - just want to see if it looks the same as yours installed.

mine came with a whole new carriage and wheels because I wanted the new top plate.
the new carraige doesn’t have a piece of metal sticking out the left side however for the optical end-stops in the k40… so not sure how I can use the new carriage.

I guess I can just use the saite head and top plate on the stock carriage…

a photo of yours installed however would be nice as I am curious