Large scale repstrap

Wow.. this looks like the Oerang Oetang of the repstraps...

Must be able to print in very high speeds without any problems?

The speed of the print varies for quality hardware shake is pretty much nonexistent depending on the quality you want you could only laydown plastic as fast as the quality you need normal prints from 50 mm a second 150 mm of second. I think the Yoda I printed was at 50 mm a second[www.facebook.com]

Wow, awesome! How are you heating that monster of a bed?are you using lead screws for x and y axis?

is that mach3 i see in the background?

Yes that is mach 3 bed is heated by 110 volt electric griddle with 1/4 aluminum plate on top under the bed this two sets of linear rails in a T formation to allow for expansion in both directions not bowing the bed

I'm using ballscrews on all axis some of the other things I came up with was water cooling and a fish tank air pump pumping cool air all the way through the filament tube because I plan for enclosure and the extrusion head is also mounted on a vertical linear rail and held in position vertically just by gravity in case of a crash head to beb adjustment is easy I use a stop bolt and locknut on top in the center of the extruder

this is fantastic.
is there anywhere i can see more about this project?
great job man!

Edited 1 time(s). Last edit at 05/08/2013 08:13PM by keithCl.

That machine is...absurd. In a good way.

It must be incredibly stiff. The layer alignment on that coin-op bottle opener is really, really good. Zero apparent z-wobble. Mechanically it's fantastic.

I see some Geckos and a BOB, what size are those steppers? Nice job staying away from standard reprap electronics - they couldn't drive those monsters anyway.

And what linear rail are you using on the axes?

Given the setup I bet you could mill Aluminum if you wanted to with this machine.

But what do you guesstimate the cost of the machine is? It must be great to have all the tools to make this on-hand, your shop looks awesome!

Keep us updated!

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- akhlut

Just remember - Iterate, Iterate, Iterate!

[myhomelessmind.blogspot.com]

The linear rails at the THK the motors are Nema 34 for X and Y and Z is 900 inch ounce the extruder Neema 23 100 to 1 gearbox I would guess around $2000.00 because of parts had picked up over the years from eBay it is at work now I was there prototype engineer but I got laid off just went there today and dismantled it to bring it home here are some early pics of frame here is a couple of the pics of my other equipment I designed and built a three axis router which after dismantling get out of there in a little harbor freight lathe

Great stuff. Sorry to hear about getting laid off. I've been there - that sucks.

That is some pretty serious CNC equipment you've got there. I assume you built it all yourself? Really impressive.

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- akhlut

Just remember - Iterate, Iterate, Iterate!

[myhomelessmind.blogspot.com]

KeithCI there is a link to my Facebook page in the same thread a couple posts above yours

cool i can be a bit blind sometimes.

thank you

Any details on that "Harbor Freight" lathe?

The lathe 7 x 10 head bed and tailstock were in bad shape somebody evidently had redone a bad harbor freight so I got him on eBay for a $60 if I remember right I did some work on the bed took the twist out I re-machined the head anyway as I wanted a 5C headstock something I can get an inch through put large Timken bearings basically I wanted to use it for oddball OEM threads and tapers trying to do this on my old standard lathe was a dream I can threaded any oddball pitch I want now motors away oversized but I had some again good deal I had got a good deal on a small frequency drive allows me to run a small three-phase motor works great I think that was the most expensive part and I think that cost me $120 I think the motor I paid $29

Sorry my typing is atrocious I meant to say a pain using my old manual lathe and a dream now

awesome project. question for you whats your thought for multi head printing on something like this? would it need each to have its own upright?

im looking for 25x 8x 8 or so for build volume though 25x14x14 would be awesome to. Seeing a beauty like this is inspiring

I have also been wondering what type of electronics do you use to control that unit?

Mach 3 slic3r they have a setting for it and also in kisslicer also has a setting you need standalone temperature controllers and set the temps for the hot end and bed to zero in the slicer

Edited 1 time(s). Last edit at 06/09/2014 11:08PM by cnc dick.