I think you should then go step by step, start with one upgrade, use it a bit and then start with another one if still needed.

 

OMG I am a finalist of the Openbuilds Powerpack Giveway!

I am so happy to have been selected with all these very good projects and ideas we have seen these last months. And huge thank you to Openbuilds team for this awesome contest and price!

Please vote for the best project here : https://openbuilds.com/threads/poll-cast-your-vote-powerpack-contest.11919

 

Thanks kabar!

EDIT: btw, I have added a special thanks on the main page (github, here and thingiverse) to the most active member here. Let me know if you prefer to not have your username visible to others.

 

Looking forward to see your "Frankenstein" Bear Upgrade printing

 

Option b sounds much better to me

Thank you very much

 

I have publish new bearings holders for the Y axis, the Bear Bearing Holders
Prusa i3 Bear Bearing Holders by pekcitron

For now only on Thingiverse, will be soon added to optional parts

 

Thank you. Yes it is a very clean build and well detailed. However, I suspect it will not strong enough for aluminum cutting. I prefer The Beeline CNC by blterry1 which looks very strong.

Still not see an idea I have in my head since several month to make a very strong and compact frame, maybe it is a bad idea, I didn't do any drawing yet

 

Yes all the extrusion for the workplate is too much for me too (but offer way to bolt parts). I was more talking about the other parts

I never tried v-slot motion yet but what I can read is that they are very capable (some are cutting metal, not only aluminum). Swarf and dust is clearly the downside but can be solved with "accordion protections" (do not know it is called).

Let me know when I can come to your place to steal your CNC

 

Because if this part : Original-Prusa-i3/y-corners.stl at MK2S · prusa3d/Original-Prusa-i3 · GitHub . As we have more place on the Bear upgrade I decided to cover almost all the bearing in order to have the best fit and fixture possible (similar to a SC8UU carriage).

The other problem is the alu frame plate, the bearing needs a "V" shape to pass through it. I do not test it but it might be possible that bearing for half upgrade works with original MK3.

If you are interested in getting this bearing holder for original MK2 then I can try to design it for you

 

Interested in few pics, thanks

 

Bombyx Prod - Connected Multi-head 3D Printer for Production

 

Are you using the Half version on the original MK2?

 

No and yes

I cannot manage several type of extrusions for this project, it is already quite hard to manage all printers . However, as this question comes back regularly, if you open the Fusion 360 project, you will find on each parts two parameters : rail_profile_width and rail_profile_height. You can change those parameters to make them compatible to other extrusions. I will write a help on how to do this.

However, you will not be able to change the angles of the rail profiles (by a parameter). This is made on purpose as some parts are printed vertically. If you do a 90° angle for vertical part then you will need a support and the accuracy will be quite bad. If you put my parts on a V-Slot you will see how well and easy they are aligning. I do not really see a problem to use parts with an angled rail profile on T-Slot extrusions, you just need to be careful to align/square the part during the build (but this is quite common with T-Slot parts in general).

 

Maybe I will also use later openbuilds linear rails (using v-slot)

I think I did not understand something . There are 3 versions of my bearing holder, one for Half Upgrade, one for Full MK2(s) and MK2.5 and one for MK3 : Prusa i3 Bear Bearing Holders by pekcitron. Are you using my bearing holders or the stock one?