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CNC - What's the Problem?

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Bob Rodgerson02/04/2021 17:30:44
612 forum posts
174 photos

They are not CE marked and they have held discussions about importing them to the EU and having dealerships but there is too much red tape as far as I know. On the occasions that I had to call them they described exactly where to place the probes on my Multi-Meter (Bought specifically for any problem solving required while installing various attachments to my mill). The wiring within the cabinet is very clearly marked and numbered so that it is fairly easy to trace things.

mgnbuk02/04/2021 18:36:15
1394 forum posts
103 photos

Commercial CNC setups have some very sophisticated tool changing capabilities, difficult to replicate at any reasonable cost. what proportion of hobby lathes have a capstan turret? How may of them could be automated?

Toolchangers are not compulsory on CNC machines - 3 of the lathes at work have manual toolposts ( 2 x Multifix & one Capto). When a toolchange is required, the program halts & a lamp flashes to alert the operator. Pressing a "tool change complete" button restarts the program. Obviously requires the operator to fit the correct tool ( a comment in the program can be added as a prompt) , but that hasn't been a problem so far. 4 of the CNC milling machines don't have ATCs either - lack of an ATC really isn't the end of the world !

They are not CE marked

As we are no longer a member the EU, CE marking is no longer required - but UKCA marking is. Whether or not there is any practical difference yet (other than the required marking being attached) is another matter !

Nigel B.

Nigel K07/05/2021 08:52:21
18 forum posts

Toolchangers are not compulsory on CNC machines

mgnbuk I would say that you are absolutely correct. However, with model engineering (and sometimes when you own your own company) there is also the element of fun and the enjoyment of learning to be considered. I admit to feeling a bit of a fraud ordering an ATC with my CNC milling machine - I am quite certain I could get on without it - but I'm not only interested in economic efficiency, I want to learn how to use it and enjoy the fact that the machine is running by itself. If you're paying someone to operate a milling machine then perhaps in certain circumstances an ATC is counter-productive in the sense that you probably want that person to be keeping an eye on everything.

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