tantilot ( tantilus and core xy )

Re: tantilot ( tantilus and core xy )

starkn — Tue, 19 May 2015 09:33:19 -0400

Hello,

Any people built this machine recently?
i am willing to build one, and was wondering how it performs, i am not a beginner, but i have yet to build a real 3D printer and not just scrap some parts together.

Re: tantilot ( tantilus and core xy )

conoral11 — Thu, 05 Mar 2015 19:03:38 -0500

Hello,

I think your design is absolutly fantastic! How is V2 coming along?

Conoral11

Re: tantilot ( tantilus and core xy )

ekaggrat — Mon, 17 Nov 2014 20:39:57 -0500

It is not recommended as a beginner project as there are things still changing ...

link to the files
files

Re: tantilot ( tantilus and core xy )

reprapturk — Mon, 17 Nov 2014 08:08:25 -0500

hello guys,

Thanks for this great work. It really took my attention. I am a beginner at 3D printing so, can you please supply me a BOM for your design Tantilot? and of course if possible building pics also?

Thanks.

Re: tantilot ( tantilus and core xy )

ekaggrat — Sun, 09 Nov 2014 02:42:41 -0500

link to aluminium spool

amazon

let me know what changes you want on the x axis

Re: tantilot ( tantilus and core xy )

mondo50m — Sat, 08 Nov 2014 16:34:19 -0500

I am using a standard j-head from hotends.com. I purchased a couple of tubing connectors off EBAY. I am trying to come up with an X carriage that will hold the x end stop, bowden connector, part cooling fan and holders for the cables. I just am not very good at drawing in the 3d programs. I will post some pics of prints once I have made something of some considerable size. Where can I get aluminum spools from?

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Sat, 08 Nov 2014 11:19:27 -0500

@mondo

super nice. I know a few changes are needed like using 625vv bearings , which would make the carriages even more compact. Also adding a guitar string tuner to the x carriage to tighten the strings and finally doubling the string on the z axis to prevent it from falling down...

version 2 coming up then ....

thanks for building tantilot . Can you post some sample print pics . Also i would suggest using aluminum spools on the motor to get better prints.

One last question what extruder are you using?

Re: tantilot ( tantilus and core xy )

mondo50m — Fri, 07 Nov 2014 16:44:08 -0500

Been awhile since I have posted my progress. Here are a few pictures. I have been printing with the unit, and the Z axis is awesome!! Hard time getting the bed leveled, but it is pretty close now. I do not like how the bed just falls at the end of a print, but someone will figure that one out. Please respond with any comments that will make this a better unit. It runs nice, but the x carriage could use some work.

Milt

Re: tantilot ( tantilus and core xy )

UkIan — Fri, 17 Oct 2014 15:40:41 -0400

Ah cool, thanks :)

Re: tantilot ( tantilus and core xy )

ekaggrat — Fri, 17 Oct 2014 12:37:50 -0400

The screen shots are from rhino3d

Re: tantilot ( tantilus and core xy )

UkIan — Fri, 17 Oct 2014 08:35:35 -0400

Hi, what did you render your machine image with?

Cheers
ian

Re: tantilot ( tantilus and core xy )

mondo50m — Tue, 14 Oct 2014 15:33:13 -0400

Awesome...will get this printed up and checked out. Thanks.

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Mon, 13 Oct 2014 22:08:13 -0400

i just realized the error. Sorry about my mistake. I have made a new more compact carraige which will sort the problem.

z_error.jpg

use the attached stl

Re: tantilot ( tantilus and core xy )

mondo50m — Mon, 13 Oct 2014 19:32:02 -0400

Ok, new problem. I am almost ready to add the J head extruder. I am finding that when I put the J head on and the holder, I loose even more room due to the head and holder being the size that they are. I guess I am going to loose an extra 1/2 to 3/4 of an inch. In the present configuration, to get the full 4 inches in the Y direction, the head would be intruding on the cables that cross each other in the front of the unit. I am going to try and move the idlers to a different location. Of course, this means have to make a different holder for the rod that the carriage slides along. Will see what I can do about this. I am not a designer, just a maker, but we will see.

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Tue, 07 Oct 2014 22:43:16 -0400

great to hear about the progress. in the next version i will change the bearings to v-groove ones . This will save space and will be more sturdy to pull the strings..

Re: tantilot ( tantilus and core xy )

mondo50m — Mon, 06 Oct 2014 14:45:28 -0400

So far, so good. Hooked up the laptop to the Tantilot and the x and y axis are running. Need to find spots for the endstops. One problem with the bearings. Because they are stacked, if the cable is pulled tight, it can, and did end up creeping between the bearings. I solved this by super gluing the two bearings together. I made bearing housings for the idler bearings. Things are coming together, just taking more time than I imagined.

Milt

Re: tantilot ( tantilus and core xy )

mondo50m — Mon, 22 Sep 2014 14:31:56 -0400

GREAT!!! One step further into getting this done. I am at a standstill right now as I need to free up some space in the house to finish the build. Have to have the laptop handy in case I need it. It is brand new, so taking it to the shed is out of the question. Will get some pics taken and posted soon.

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Sun, 21 Sep 2014 22:19:46 -0400

use this config file and replace it in your marlin folder...

Re: tantilot ( tantilus and core xy )

mondo50m — Sun, 21 Sep 2014 17:10:45 -0400

Awesome. THANK YOU VERY MUCH!!! So, I do not have to choose a specific type of printer? I mean like regular or Delta....I would guess no as there is no option to choose Corexy. And what do you mean by all of the necessary files? Just Marlin is not enough?

Milt

Re: tantilot ( tantilus and core xy )

3Dmaker4U — Sun, 21 Sep 2014 04:41:01 -0400

Well, if you go to Marlin's github repository: [github.com]
then click on Marlin folder: [github.com]
and then on configuration.h file: [github.com]

you will find at lines 303-304 (at least that is now, alternatively, just search for "corexy" on the page:

303 // Uncomment the following line to enable CoreXY kinematics
304 // #define COREXY

Just delete the two slashes ("/") at the beginning of 304, like this:

303 // Uncomment the following line to enable CoreXY kinematics
304  #define COREXY

and you're done. Of course, the modification requires you have all the necessary files on your computer ;)

Once, preparing for a "regular" printer, I activated the option by mistake, and it took a while to realize why my X and Y motors are always going together, either the same direction, or the other way around :)

Re: tantilot ( tantilus and core xy )

mondo50m — Sat, 20 Sep 2014 11:09:16 -0400

I have found out that making one of these machines requires one to have some knowledge of programming. I am able to open the arduino file and upload the Marlin file into it. Past that, I am lost. I understand that I need to enable the corexy function in the configuration file. But, I am not a programmer and do not know how to do this. I can not even find the corexy configuration in configuration.h. By all indications, I am using Marlin v1. If anyone can point me in the proper direction or send me the marlin firmware already to be used with the corexy system, I would appreciate it. My build is ready to do some testing to make sure the steppers are going to work properly. I have no idea how to do the software part of this build. Help is required.

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Wed, 17 Sep 2014 20:40:24 -0400

@mondo50m

the system is based on the corexy. So in marlin you will need to enable the corexy configuration or it will not work. In a traditional xy setup one motor moves the x and the other moves the y. In this setup both the motors move the x and y . So if you dont enable corexy you will get weird movements.

i hope this clears up things..

Re: tantilot ( tantilus and core xy )

mondo50m — Wed, 17 Sep 2014 13:56:56 -0400

Sorry to be such a bother, but could you explain this type of system to me? It is now to the point that both steppers are used to make the y move back and forth. To make the z move from left to right, requires the independent movement of the steppers. Is this as it should be? I guess, to me, it is a foreign concept, plus being 64 years young does not help.

Milt

Re: tantilot ( tantilus and core xy )

mondo50m — Wed, 17 Sep 2014 12:19:28 -0400

I see what you are talking about. I thought (originally) that those were holes to pass the cabling through. DUH!!!

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Wed, 17 Sep 2014 12:14:35 -0400

The carraige already has holes for the strings which line up with the bearing. Please check them

Re: tantilot ( tantilus and core xy )

mondo50m — Wed, 17 Sep 2014 11:49:58 -0400

So, I have the cables routed as per the diagram. How would you go about attaching the ends to the X carriage? I have a couple of ideas, but could use some input on this. My thought is drilling some small holes in the carriage and running the cable through the holes. The only other thing that I see is that if I take the cables to the extreme high and low of the carriage, the strings will slip away from the groove in the stacked bearings and get caught above the bearing on the 5mm rod that holds the bearings in place. If I keep the strings level with the way that they exit the groove in the bearing, it stays in the groove. Is it OK to run the cables this way or do they have to be at the top and bottom of the carriage?

Milt

Re: tantilot ( tantilus and core xy )

mondo50m — Wed, 17 Sep 2014 09:39:19 -0400

Thank you very much for the diagrams. These are really going to help. I would never have figured this out on my own. Will get on it today and post some more pics of the build.

Milt

Re: tantilot ( tantilus and core xy )

ekaggrat — Tue, 16 Sep 2014 22:47:11 -0400

@mondo50m

sorry to keep you waiting. Just got back home from a vacation... i have made some diagrams, hope it clears up the stringing. On the aluminum pulley you need to wind the string 5 times clockwise and 5 time anticlockwise. Start with a knot on the upper left corner on the x carriage,route the string and
tie a knot on the lower right corner. Then start with a knot on the upper right corner, route the string and tie a knot on the lower left corner. It is very tricky to route these strings.

reference.png

st1.jpg

st2.jpg

Re: tantilot ( tantilus and core xy )

mondo50m — Mon, 15 Sep 2014 17:19:38 -0400

Ok, got my bearings in. I purchased 695zz bearings as they are 13mm in diameter, have a 5mm bore, and are 4mm thick. The y end 'idlers' can handle up to a 16mm diameter bearing. But the x ends can only handle a 13mm bearing. Now I am ready to start cabling the machine. I have been at it for over 2 hours and can not figure out how cables are to be strung. Will have to wait for 'ekaggrat' to come around with a diagram of the routing and the attachment points.

Milt

Re: tantilot ( tantilus and core xy )

mondo50m — Wed, 10 Sep 2014 08:13:45 -0400

No worries, I do not have any BEARINGS!!

Milt