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Recommendations for a UK based CNC building company

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chessfoss

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Hi,

I would really appreciate recommendations for a company ideally North of England that build CNC machines. Needs to be fairly sturdy as it will get a lot of use so probably a hobby machine will not be adequate.

Thanks in advance
 

shed9

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Ooznest CNC's are very much hobby territory. Depending on the work envelope you are looking at rack and pinion for large format (i.e. 4x8) and ball-screws for medium to smaller working footprint.

What are you going to be cutting and to what size?
 

sploo

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Size and intended materials will be critical. Hobby machines with beds up to 1m x 1m are (now) not terribly expensive, and will happily cut wood and plastic.

Servos can be better than steppers, but tend to cost more. Good quality ballscrews and THK rails are a positive, but again expensive. Larger machines tend to use rack and pinion drives due to whip in long ball screws.

At that larger scale, the MechMate (MechMate CNC Router - Build your own with our detailed plans) is a DIY clone of a US Shopbot machine; so may be an option if you need full sheet capacity + have DIY skills + don't want to spent ShopBot money.

Obviously if you're after cutting metal then this will be an entirely different kettle of fish!
 

Ollie78

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Go on mycncuk and ask on there.

A few points.

Do not bother with any machine that uses wheels running on aluminium extrusions if you actually want a useful machine. They are fine on a 3d printer but they are not subject to sawdust or more importantly lateral load.
You need Hiwin profiled linear guide rails if possible or at the very least supported round linear rails.

Also don`t bother with belt driven methods or brass nut leadscrews just get proper ballscrews straight away.

Get a proper spindle ( water or air cooled ) not a router, they are made for much higher precision are quieter and designed for running all day.

The stronger the frame and gantry the better, my machine has 90mm by 45mm aluminium extrusion for its frame and two of these sections together (in an L shape so 135mm thick by 90mm wide) for the gantry with 20mm solid aluminium end plates.

A lot of people get X carves, shapeokos and workbees only to spend a lot of time fiddling with them and then they buy or build a proper machine after coming up against the limitations.

Ollie
 
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