Heaven help me - I've just bought a delta kit :-)

[mjf55]

So I am having problems with my part cooling fan, the 'vortex fan for cooling prints' according to http://reprap.org/mediawiki/images/e...ng_diagram.jpg (which is the same as provided in the kit )

I first noticed that the fan always appears to be running, but could not tell how fast. So I did a little digging.
I would issue an M106 S0 (turn off fan ) and the fan would spin to full speed. A small thread by the fan duct exit shows a lot of breeze.
I would issue an M106 S255 (turn on fan full speed) and the fan would ramp down. It would not turn off completely. A small thread by the fan duct exit show a lot of breeze.
I would issue a M106 I1 (fan disable) and the fan would ramp down. It would not turn off completely. A small thread by the fan duct exit show a lot of breeze. This works as it should (except the fan is not completely stopped )
I would issue an M107 (turn off fan ) and the fan would spin to full speed. A small thread by the fan duct exit shows a lot of breeze.

So the issue is that the control of the fan seems to be inverse to the command issued. (except for the disable fan (I1) command)

Any thoughts?

[curious aardvark]

it doesn't come with a part cooling fan.
You have to add that yourself. the diagram just shows where you plug the fan in - once you get it.

did you wire it up in reverse, as you have to add your own extension cabling ?

bizarre thing with the virtual machine. The program starts up, shows you a list of cars manufacturers, lets you pick a car and engine type - so at that point it's clearly accessing it's database properly, then just won't let you progress from there.

I did clone the original - poorly - drive and make the image from the clone.
So Going to try and image the original drive tonight. Also check it still works in the original machine.

Weird is what it is.

[mjf55]

bizarre thing with the virtual machine. The program starts up, shows you a list of cars manufacturers, lets you pick a car and engine type - so at that point it's clearly accessing it's database properly, then just won't let you progress from there.

I did clone the original - poorly - drive and make the image from the clone.
So Going to try and image the original drive tonight. Also check it still works in the original machine.

Weird is what it is.

Could be a corrupt data base in the clone, what about memory, does it have enough?

[mjf55]

I added the part cooling fan and your fan duct work. I did reverse the wiring to try to figure this out, but the fan would not start at all, neither the S0 or S255 would start it. Tried another fan ( blower type this time ) and same behavior. A HE3D facebook member suggest just to reflash it. I am not convinced, but will give it a try.

EDIT:
So I reflashed, and no difference. Will open a service ticket.

[curious aardvark]

don't think memory is the issue, everything is running on ssds so virtual memory almost as quick and plenty of that available.
Plus the original machine only had 2gb.

Until I've reassembled the machine and checked it does still work - I'm not going to get any nearer I don't think.
In two minds whether to run a chkdsk, it's got a couple hundred bad sectors and probably isn't long for this world, chkdsk could simply move too many bits of software.

I'll see how much memory it pulls on the original machine.

[mjf55]

Can you export just the database and see if that is ok on a different machine ( either vm or host)

[curious aardvark]

Dunno, my brain hurt last night, so I called it a day - I'll get back to it over the weekend, or friday night.

My aluminium engineering mates had a slight problem, so while I was there I got the build plate and bottom baseplate cut.
build plate is 5mm - we went for 380mm in the end, gives me plenty edge to drill in for the 5mm bolts, or larger if necessary. It's a serious chunk of metal !
I'm assuming the printbite will loose that yellow tint when I take the backing off. Currently leaving the backing on the build plate as well till I'm ready to stick the printbite to it.

buildplateandpb_640x480.jpg

3mm Baseplate, solely to add rigidity. Once I've got some idea where stuff goes on the top, I'll get another one cut.

alubaseplate_640x389.jpg

The white is the protective layer, on the right of this pic you can see the plastic covered side of the disc that I'll print on.

What I'll do with the plate is use 2 bolts to fix a mounting bracket to the strut and the spring and 5mm bolts will go into the bracket screw up really tight so there's only a tiny amount of play in the spring. I should be able to keep the whole arrangement rigid, so none of the wobbling issues you get with the long thin bolts on the k200.
There shouldn't be enough heat going through the bolts to ever melt the plastic.

I'll check, worst case scenario I can get some aluminium ones made :-)
The balance sheet is still currently in my favour.

I think all i got left is to finish the corner peices, carriages and effector (all, lol), build it, make it work and then get the top reinforcement bars/control panel mounts made and the top aluminium plate fitted. And a myriad of other 'little' jobs: control panel and wifi unit housing, extruder (although that might not be an issue as I've got the one I took from the flashforge and as I'm now using a nema 17 and flying extruder it's a straight fit) still need to make the suspended 'cradle', Filament holder, cable routing, endstop mounts, measurements for the smoothieware, thread the end holes in the uprights etc :-)

Once I've got it working properly (optimism :-) I can make the - probably two part - cover for the top that will protect the psu board, motors etc.
It'll probably have a face of some kind - I like to anthropomorphisise all my stuff. :-)

Practically done ;-)

[mjf55]

CA, whats happening with your build. It been 10 days and no update. You know I am living vicariously thru your BB build. Anything new?
Question: I noticed that your PrintBite is slightly smaller that the aluminum heat bed. I ASSUME that is the actual build size. Is there any reason that you did not cover the whole bed plate, and just make (drill ) holes for the mounting adjustment screws? I am about to order my printbite ( had to use vise grips to remove a small circular build :-( ) for my K200 and wondering if I should use 200 or the full 220 mm diameter and drill out the mounting adjustment holes.

[curious aardvark]

you need to leave a gap round the edge for mounting holes.
you only want the 200mm printbite.

Printbite is not cheap so only buy what you need.
I've left a 15mm rim on the build plate for mounting purposes, 5 or 6mm bolts.
Likewise the heatpad is also 350mm.

Currently been sidetracked by another project.
Building a full size sling target from 40mm polypropylene pipe: http://slinging.org/forum/YaBB.pl?num=1510836848

My current balearic target is made from wood and really heavy and takes about 20 minutes to put up and take down. Hopefully the new one will be at least as strong, but is really easy to carry and put up and take down.
As england's only half decent slinger, I desperately need to get some target practice in before the international in Mallorca next march. Hopefully this will help :-)
There's a giant austrian, In particular, I've made it my goal to beat next year.
Met my goals for this year, but next year I'd quite like another trophy - and the only way to do that is to practice, practice and then practice a bit more.
Most of the competitor have somewhere they can leave a permament target set up. I don't.
Anything left in my friends field would vanish overnight.
So I desperately need a tough, lightweight, easy to deploy full size balearic target.
I'm in some of these videos: https://www.youtube.com/user/davidmorningstar/videos

Still got an angled bracket to make and then I can start screwing things together for the back supports :-)

In other news, my mate acquired a 6mm thread tapping kit for me - so I'm been threading the ends of the main struts. That way the corner pieces and feet can be bolted on for a really secure and solid fit.
Haven't really looked, but also possible I can get a bolt through the corner piece to the side pieces as well. Which would be good.

Once I've got the slinging target made I'll be back on the BB - I'd like to get it made before new year :-)

[mjf55]

You certainly have interesting hobbies / sports. Have fun and good luck on your new movable target.