I guess its about time to call it "Build Complete".

It will only have few cosmetic enhancements from now on. (lettering the box and machine's connection panel etc.)

I have done some cable management for the control box;


And some calibration;



Before the upgrade I was having imperfect circles due to backlash, it now seems pretty good in drawing mode. Hopefully it will be the same when cutting aluminium.



Drawing random circles in different dimensions to check... And it is pretty accurate..

 

And a short video of the first calibration runs.

 

Hi Michael;

Thanks,

I have tried to switch the ground connection from spindle to the plate but had the same result..

 

Hi Cleyton;

I am glad you like my upgrade plan and thank you for your nice words.

It is still a bit early to say if I would change anything but still here are a few comments from my point of view;

1- Plan well and make sure you do not build a machine larger than you would ever need.
2- I would use a solid piece of steel or at least aluminium on the bottom connect of the two Y gantries (Please see the pic below I used a sandwiched hard wood in between the two 20by20 v slots but still at times they may not be very well in sync for I believe various reasons (one gantry being not very similarly tight as the other one, one being not as well lubricated as the other one etc.)
3- I have used a 100 mm measurement between the centres of the holes used for wheels on Y gantries. I believe it would be better to use something like 98 or 99 to have more flexible eccentric adjustment.

Those are the ones I can think of for now.

My model is shared via fusion360's sharing in my front page and you can get all the measurements from that model. F360 has all the measurement possibilities (a quick search on web would do the trick and you will see its pretty easy once you know how to do it)

I hope this helps and wishing you the best of luck with your build.

 

You are very welcome.. Glad my work helps you out guys!

Good luck wth your project!

 

Hi Kozzy;

I am afraid I do not have a full parts list in my hand yet.

I plan to do that but i really cant tell when as I am way busy with my work and studies lately.

 

Hi Sean,

I purchased those from a local manufacturer here in Istanbul.

I do not know where you are located but I think they do export to number of destinations.

Here is a link: CLICK

 

Sorry for not seeing this earlier..Been very busy.

1. The reason why bottom two holes on Y-Gantry are 6.1mm is because I am using M6 screws there instead of M5. The support rail is not a v-slot from Openbuilds, its from local market here and they come with M6 tapping holes. If you will be using standard Openbuilds v-slot there make sure they are 5.1 instead.

2. I would rather go for a 3 wheel setup on the bottom ; two on the sides and one in the middle. But then again that is totally up to you of course. I find it a bit hard to adjust 4 wheels at the bottom setups.

Hope this helps.. Sorry once again..

 

Hi Michael,

It was me I suppose.. I just couldn't build them well. When someone from another shop came up with the idea of using the ones I have now and when those worked well I just didn't have more time to play with building the original clamp idea.

 

Hi Karl,

Thank you for your comments.

The idea behind using the bottom Y connectors was to prevent out of sync movement of Y gantries. (This did happen while testing the machine so I thought it would be an additional feature to try and prevent this from happening or at least reduce the chance of that)

However it did not fully prevent or stop the un-synced movement of the two Y gantries as it did happen happen again in fewer occasions resulting a stall. As I do not have a standard occasion or testing method to see whether this helped or not I am afraid I do not have a certain answer to your question. Would a single steel piece do a better job? I don't know that either as it requires testing creating the same situation and try with and without the bottom Y connector.

Sorry that does not answer your question but thats where I am standing for now.

 

Today I donated the machine and its control box together with all accessories, spindle etc to Istanbul Haydarpasa Technic High School's Industrial Automation, Automatic Production & R&D Laboratory.

The students of the school will now have their hands on an open builds CNC Router and be able understand the basics, controls and use a CNC Router in their Lab.

I am very happy to see the student's joy and sparks in their young eyes.

 

Hi Caseyjaybenson;

The cost breakdown for this build was relatively difficult as I sourced the parts from US, UK and locally here too. There were custom plate cost etc but I would imagine it is around 1500 USD including everything. This is a good estimation only.

Thanks

 

Maybe 2020 is a year for a new machine.. Finishing my PhD soon so I need a toy to play.. Started designing again...

 

All profiles are of Openbuilds profiles except the ones on the machine bed. hose are different profiles i obtained form a local supplier. I hope this answers your question.

 

Ah OK unfortunately I did not have time to create a BOM list gor that project.. Sorry

 

This time I plan to go with linear rails.. It will require a lot of design making and choosing the right parts. The plan is to source everything else from Openbuilds. I will open a new project for this new machine soon.

For now the ideas are something like this: