Comments sought on new build: A CNC Router for RC Gliders and Planes

[njhussey]

No probs and cheers Lee....

I'm just reading up on safety strategys so I can see how many relay connections I need etc. Struggling to get my head round it, think I need to lock myself away from all distractions to get my head round it

OK another question, I presume the proxy switches to get are PNP NC ones (sods law as I have a good selection of used and new NPN NO ones that somehow didn't get left behind at my previous job!!)

[m.marino]

If you haven't purchased your cable yet you might look at IGUS. They are a bit more but the difference in ease of flex and movement makes wiring up and setting up cable trays and runs so much easier. That is just my experience in helping a few folks rebuild older machines. I am seriously tempted to redo mine do to how much it makes getting a good clean cable run done. I don't own stock nor get a discount or anything just very happy with the product.

Michael

[njhussey]

Ok so I got my spindle mount today....



20 mins later...



Just need to drill and tap the front plate this afternoon. Spindle should be delivered tomorrow or Thursday...

Had my cable markers delivered, should have enough here for a few control panels! Got 0 to 9 and E, N, L, X, Y & Z.

[njhussey]

I've got some hard stops at the bottom end and will be putting some rubber for the gantry to rest against as you suggested this when I first mentioned going vertical. I'll use it horizontally until I've built the frame but it'll have to be on the floor as the tables aren't strong enough to not be shaken to bits with it on running at full chat....

[njhussey]

Today is re-designing the moutning frame/enclosure.....



Had a delivery today, scrapping my original home made spindle design for a "standard" 2.2kW one...



Slight bit of damage where it looks like it was dropped, nothing serious just cosmetic and nothing that can't be sorted with a file! Spindle spins freely and smoothly...





Currently looking at positions for the limit and home switches...

[njhussey]

Started the PSU this afternoon, got to fix the rectifier (need some thermal paste yet) and then decide how I'm going to do the fuses...

[njhussey]

Ok so done the PSU. One thing I'm not certain on is the rectifier wiring. Can you electrically minded people have a look and make sure I've got the connections correct, I think I have but would like confirmation...Thanks!

[Lee Roberts]

Looks right to me ?

[Clive S]

Neil

I would not be happy with the choc block you need some sort of insulation under it as any stray wires could short to the chassis. Also a larger choc bloc might be better as you are daisy chaining the power from one to another. It would be nice to have a separate wire to each from the main. Just my two cents worth. ..Clive

[Jonathan]

as you are daisy chaining the power from one to another. It would be nice to have a separate wire to each from the main. Just my two cents worth. ..Clive

At first glance I thought that, but he's using such excessively thick wire that it's probably not a big deal.