XL delta build

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Eaglezsoar
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Re: XL delta build

Post by Eaglezsoar » Thu Feb 13, 2014 12:45 pm

neurascenic wrote:Tee Hee hee.... Try again :)

Thanks for posting that image, that should help a lot for his understanding.

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neurascenic
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Re: XL delta build

Post by neurascenic » Thu Feb 13, 2014 12:49 pm

Eaglezsoar wrote:
neurascenic wrote:Tee Hee hee.... Try again :)

Thanks for posting that image, that should help a lot for his understanding.


No sweat, Team SeeMeCNC
I am a fool entrapped within my own wisdom.

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Eaglezsoar
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Re: XL delta build

Post by Eaglezsoar » Thu Feb 13, 2014 12:52 pm

neurascenic wrote:
Eaglezsoar wrote:
neurascenic wrote:Tee Hee hee.... Try again :)

Thanks for posting that image, that should help a lot for his understanding.


No sweat, Team SeeMeCNC

Great attitude. Thanks again.

calibur2121
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Re: XL delta build

Post by calibur2121 » Thu Feb 13, 2014 7:57 pm

XL delta Measurements.jpg

She isn't as busty as I wanted, but she has some nice legs! lol
And picked up a new Mega and it recognizes and uploads.
Working on firmware now. Results not inspiring....

Apollyon25
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Re: XL delta build

Post by Apollyon25 » Sun Feb 16, 2014 3:59 pm

Hi,

I'd recommend you do not use those style resistors across the mains.

They are notorious for failing 'short to case' which, depending on the failure location in the series string, will still likely cause excessive dissipation in both the wires and the non-failed resistors. You may well end up with a fire - especially as you also have a nice flammable base material (i.e. wood).
You'd want to put a thermal cutout device bonded to the plate also, as your mains will not be current limited (other than the fusing current of the wire/crimps/solder connections) and you may find under fault conditions the temperature of the plate may rise extremely rapidly increasing the likelyhood of melting/burning something.
I'd also go as far as putting several varying capacity and speed fuses in circuit.
Obviously, you take the responsibility for your own safety when working with mains voltages, however I have seen these resistors go anywhere from a fizz to a change-your-shorts level of bang. I've also seen an entire industrial switchboard in flames from these resistors.

Especially considering this machine will be in your home...
I'd re-wire them in a series/parallel arrangement and run them off 12-24V DC. Preferably also suitably current limited.

Jared
"who learned the hard way"

calibur2121
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Re: XL delta build

Post by calibur2121 » Sun Mar 16, 2014 11:29 pm

I haven't posted in a bit but i have still been working non stop on it. This is how she sits.
IMG_1930.JPG


Iver mounted the extruder a little under half way down the rail.
IMG_1960.JPG

IMG_1961.JPG


I have added a z probe that originally started as a salvaged microwave oven switch. The switch i noticed had measurement deviation of .5mm (+-) I dont know whether all switches are that bad, or just mine. And i had a light bulb moment and turned my whole heat bed into the switch. Seeing as i have a aluminum bed, i just negatively charged the bed and positively charged the probe. Now the deviations are .03+-
IMG_1969.JPG


After that worked well i decided to apply the same idea to the linear carriages. I ran a all thread rod through the roof and soldered a positive wire to the threaded insert. Then I attached the negative wire under the phillips mounting screw. I had to file off the anodize around the contact area to close the connection. The wires are a little unsightly atm, but I'm gonna clean it up after it starts performing.
IMG_1964.JPG

IMG_1965.JPG

IMG_1967.JPG

IMG_1968.JPG

IMG_1963.JPG



And thank you Apollyon25, Ever since i read your post ive been paranoid. I Tried to test it today, and there was some smoke.......... and then the resistors stared falling off the plate. So i had to abort the launch sequence. I'm going to switch over to a silicone heater. All this work i would hate for it to catch on fire. Now to find a use for 50watt resistors...

And I have been bringing it up to the Hacker space in Gainesville
Needless to say its loved by all.
IMG_1897.JPG

calibur2121
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Re: XL delta build

Post by calibur2121 » Mon Mar 17, 2014 8:16 pm

I have been having a problem with the auto level feature on repetier. It move the effector in a square to the next point instead of directly to the next location. And is there a way to keep the probe extended to speed things up?
http://youtu.be/tVJrrGb7hCY

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