The x , y dont seem to bad the the Z is loud best to take it apart and rebuild u think ?

 

This looks different to mine the one i got came with the Xpro Controller

 

This is the cnc

 

He made the wooden holder out of oak himself, is there anything on the cnc itself to tell me what version it is ect all he said he thinks its a OX and hes had it a few years

 

The only reason i got this is to practice on really getting all the things your suggesting is going to cost more than i payed for the build. Its using a 12v psu yes looks like nema 23's and the Xpro controller. Hes added some strange bars on the Z for the relay stops ? were are these usually mounted as this looks a mess . Would i be better off getting the 24V 360W psu just to start off ?

 

Yes. Whether NEMA 17 or 23, you'll see a noticable improvement in acceleration and available torque at 24V. Technically the motor doesn't see a full 24V, but it works anyway. You can get the base Mean Well LRS-350-24 PSU on Amazon for $40 if you're really tight on budget, but it's probably worth getting the OB version with the nicer, safer IO and switch if you can.

Oak is probably fine for a spindle mount for the rigidity this machine has anyway, as long as it's well connected to the Z axis slide. I actually kinda like the adjustable rod-mount limit switch too, I might have to steal that idea sometime. You can mount it directly to the V-Slot if you'd prefer, you'd just have to find a spot where you can attach a lug that can reach it to activate it at the correct Z-height. I don't know that I'd do too much with that just yet, unless you can 3D print custom mounts or something.

DRV8825 drivers, if that's an older xPro, are extremely outdated and were never much good for anything bigger than NEMA 17 anyway. Pick up some DM542s or something as you can- probably sooner rather than later for the Z-axis, since that's the one fighting gravity.

 

Being all new to this is tricky if i get just 1 DM542s for the Z ive no idea how that would wire up, im wondering now if i paid way to much for what i got it all sounds like it way out of date. In GBP i paid £650. i looked into the DM542s before and it was the wiring up of all the electronics that looked a little scary to do tbh. im really unsure were to start first now

 

While this is true, it's generally not the advice I give, and very hard to argue in this particular case.

Overpaying may be debatable, but if it functions, it's probably not badly spent. It's amazing how fast all those little things you end up needing actually add up; if there's more than £400 in the frame (and there could easily be) and the wheels are in decent condition then I wouldn't worry about how much you paid for it.

That's something that we'd be happy to help with here, just start a thread when you're ready. We do expect some self-help, but there's no reason to go it alone.

1) Make sure it runs, re-tram frame after moving, dial out any new backlash, etc etc. Actually cut some stuff, just use fairly low feed rates.

2) Add 24V to the system. This will allow you to bump up your feed rates, and if you had any issues with the Z axis in step 1 it should help.

3) Start improving the drivers- things will get much quieter and more reliable.

At each of these stages you can make stuff to get an ROI, as Peter said. It's not all-or-nothing, that's the whole point of a modular machine system. Nothing has to be immediate unless the machine literally doesn't work for some reason. But it can be a solid learning platform that might also turn a profit.

 

Just out of curiosity, what does the black box give me over the standard OXCNC setup?! (Ie is it night and day better or just more modern/more compatible?)

 

Hehe, really useful - re support - well I am a 'real customer' having bought an Openbuilds OxCNC brand new, I just then had two kids and five years flashed by and now it's all apparently out of date and super flimsy... That's life eh??

Really useful detail though - didn't realise it's actually affect mechanical elements like torque etc

Just trying to juggle whether upgrading my OxCNC (eg Blackbox, new router, end stops etc) is better bang for buck or to just go with a LeadCNC....

Don't use for anything harder than wood, so the OxCNC has always been decent to be fair to the old beast....

 

Thank you so much guys for all the input . i think im going to strip it down a little and clean all the wheels bearings etc im going to add a 24v psu then ill think ill go from there and see how it performs. Atm there's no Centre v slot on mine is this best to get also,as ive seen a few videos with this added for the spoil board to be added

 

Hi Peter can you provide me the OX plates DFX please.

 

There empty Peter, theres nothing in the folders.