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CAD models for MK3 parts  

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Jonathan Kayne
(@jonathan-kayne)
Trusted Member
Re: CAD models for MK3 parts


I converted a bunch. Had to hack SCAD freeCAD flow to get some clean. Let me know if you want to add to your collection.

I actually converted the files to STEP a few days ago. Just posted them. Thanks for the offer though!

Just wanted to let everyone know that I converted the new R2 files to STEP format and posted them on my GitHub fork (as well as GrabCAD and Thingiverse).

They are available for download here:
https://github.com/jzkmath/Original-Prusa-i3/tree/MK3/Printed-Parts

I will post the SolidWorks model if/when I have time to do so, as my course-load is really picking up!

Jonathan Kayne
Virginia Tech Class of 2021 - Electrical Engineering
Thingiverse Profile: https://www.thingiverse.com/jzkmath/about "I am always thinking about making. My future begins when I wake up and see the light." - Miles Davis

Veröffentlicht : 14/02/2018 10:43 pm
Olef
 Olef
(@olef)
Prominent Member
Re: CAD models for MK3 parts



I converted a bunch. Had to hack SCAD freeCAD flow to get some clean. Let me know if you want to add to your collection.

I actually converted the files to STEP a few days ago. Just posted them. Thanks for the offer though!

Just wanted to let everyone know that I converted the new R2 files to STEP format and posted them on my GitHub fork (as well as GrabCAD and Thingiverse).

They are available for download here:
https://github.com/jzkmath/Original-Prusa-i3/tree/MK3/Printed-Parts

I will post the SolidWorks model if/when I have time to do so, as my course-load is really picking up!

So useful. Thank you Jonathan!

Veröffentlicht : 15/02/2018 8:07 am
JLTX
 JLTX
(@jltx)
Reputable Member
Re: CAD models for MK3 parts



I converted a bunch. Had to hack SCAD freeCAD flow to get some clean. Let me know if you want to add to your collection.

I actually converted the files to STEP a few days ago. Just posted them. Thanks for the offer though!

Just wanted to let everyone know that I converted the new R2 files to STEP format and posted them on my GitHub fork (as well as GrabCAD and Thingiverse).

They are available for download here:
https://github.com/jzkmath/Original-Prusa-i3/tree/MK3/Printed-Parts

I will post the SolidWorks model if/when I have time to do so, as my course-load is really picking up!

One thing to keep an eye on is Prusa uses selective infill which you can see easily in Y idler. I didn’t catch that when I first converted, wondered why I had thin cubes left over.

Veröffentlicht : 15/02/2018 10:34 pm
RH_Dreambox
(@rh_dreambox)
Prominent Member
Re: CAD models for MK3 parts

One thing to keep an eye on is Prusa uses selective infill which you can see easily in Y idler. I didn’t catch that when I first converted, wondered why I had thin cubes left over.

What do you mean by "selective infill". Is it a high dentsity or a special pattern?

Bear MK3 with Bondtech extruder

Veröffentlicht : 16/02/2018 11:19 am
john.n13
(@john-n13)
Estimable Member
Re: CAD models for MK3 parts


One thing to keep an eye on is Prusa uses selective infill which you can see easily in Y idler. I didn’t catch that when I first converted, wondered why I had thin cubes left over.

What do you mean by "selective infill". Is it a high dentsity or a special pattern?

I searched - found a reference with pic here: https://www.prusaprinters.org/original-prusa-i3-mk2-3-months-update/

Veröffentlicht : 16/02/2018 11:41 am
RH_Dreambox
(@rh_dreambox)
Prominent Member
Re: CAD models for MK3 parts

Thanks for the information!
I have searched, but been completely blind to machines other than MK3 😆

Bear MK3 with Bondtech extruder

Veröffentlicht : 16/02/2018 12:06 pm
JLTX
 JLTX
(@jltx)
Reputable Member
Re: CAD models for MK3 parts


One thing to keep an eye on is Prusa uses selective infill which you can see easily in Y idler. I didn’t catch that when I first converted, wondered why I had thin cubes left over.

What do you mean by "selective infill". Is it a high dentsity or a special pattern?

selective density. You can do this in slic3r itself, but it takes manual intervention using modifiers. So to be consistent and automatic they modify the part by putting in strategic "cuts" to force internal perimeters and "tie" the infill together. It adds strength to those places.

Interestingly they used to have it in the X ends, but removed it and thickened that section externally. Not sure why as no notes on Github. Y idler and a few other parts still have it. If you use the Z holders from gregsaun he added some there too.

Veröffentlicht : 16/02/2018 2:55 pm
RH_Dreambox
(@rh_dreambox)
Prominent Member
Re: CAD models for MK3 parts

I tested "sensitive infill" on a part, but I could only see the change in Simplify3D, not in Slic3r.
Otherwise, I usually make reinforcements with a pattern of small round holes, but it was just as good with rectangles 😉

Bear MK3 with Bondtech extruder

Veröffentlicht : 16/02/2018 5:15 pm
Jonathan Kayne
(@jonathan-kayne)
Trusted Member
Re: CAD models for MK3 parts

Finished the SolidWorks Assembly. They are now on GitHub, GrabCAD, and Thingiverse.

Jonathan Kayne
Virginia Tech Class of 2021 - Electrical Engineering
Thingiverse Profile: https://www.thingiverse.com/jzkmath/about "I am always thinking about making. My future begins when I wake up and see the light." - Miles Davis

Veröffentlicht : 18/02/2018 3:40 am
JLTX
 JLTX
(@jltx)
Reputable Member
Re: CAD models for MK3 parts


Finished the SolidWorks Assembly. They are now on GitHub, GrabCAD, and Thingiverse.

I found a mistake in my conversion of the R2 X motor end. I checked yours and you have a similar but different mistake. Check the end pockets of the rod sockets. You have an extra cylinder in one of them. The last one should stay and be union'd with the main body (I cut them by mistake in mine).

Veröffentlicht : 20/02/2018 2:09 am
Jonathan Kayne
(@jonathan-kayne)
Trusted Member
Re: CAD models for MK3 parts



Finished the SolidWorks Assembly. They are now on GitHub, GrabCAD, and Thingiverse.

I found a mistake in my conversion of the R2 X motor end. I checked yours and you have a similar but different mistake. Check the end pockets of the rod sockets. You have an extra cylinder in one of them. The last one should stay and be union'd with the main body (I cut them by mistake in mine).

I see what you mean. there should be 35.5 mm for the holes and there isn't! I tried fixing that to no avail (removing or leaving them never matches up) If you have successfully converted it already, I would appreciate a copy so that I can add it to the assembly.

Jonathan Kayne
Virginia Tech Class of 2021 - Electrical Engineering
Thingiverse Profile: https://www.thingiverse.com/jzkmath/about "I am always thinking about making. My future begins when I wake up and see the light." - Miles Davis

Veröffentlicht : 20/02/2018 6:15 pm
JLTX
 JLTX
(@jltx)
Reputable Member
Re: CAD models for MK3 parts




Finished the SolidWorks Assembly. They are now on GitHub, GrabCAD, and Thingiverse.

I found a mistake in my conversion of the R2 X motor end. I checked yours and you have a similar but different mistake. Check the end pockets of the rod sockets. You have an extra cylinder in one of them. The last one should stay and be union'd with the main body (I cut them by mistake in mine).

I see what you mean. there should be 35.5 mm for the holes and there isn't! I tried fixing that to no avail (removing or leaving them never matches up) If you have successfully converted it already, I would appreciate a copy so that I can add it to the assembly.

I will get it to you when I get home tonight.

Veröffentlicht : 20/02/2018 7:26 pm
DiscoJon
(@discojon)
Active Member
Re: CAD models for MK3 parts

Does anyone have a solid file for the einsy base? I'd like to modify it but can't get a good conversion.

Veröffentlicht : 20/02/2018 11:07 pm
Jonathan Kayne
(@jonathan-kayne)
Trusted Member
Re: CAD models for MK3 parts


Does anyone have a solid file for the einsy base? I'd like to modify it but can't get a good conversion.

That was literally the only file I couldn't convert over to step.

Jonathan Kayne
Virginia Tech Class of 2021 - Electrical Engineering
Thingiverse Profile: https://www.thingiverse.com/jzkmath/about "I am always thinking about making. My future begins when I wake up and see the light." - Miles Davis

Veröffentlicht : 21/02/2018 1:35 am
DiscoJon
(@discojon)
Active Member
Re: CAD models for MK3 parts



Does anyone have a solid file for the einsy base? I'd like to modify it but can't get a good conversion.

That was literally the only file I couldn't convert over to step.

I've spend about an hour cleaning it up in F360 and have a pretty good result. The chamfers and fillets are still a pain though.

Veröffentlicht : 21/02/2018 2:10 am
JLTX
 JLTX
(@jltx)
Reputable Member
Re: CAD models for MK3 parts



I found a mistake in my conversion of the R2 X motor end. I checked yours and you have a similar but different mistake. Check the end pockets of the rod sockets. You have an extra cylinder in one of them. The last one should stay and be union'd with the main body (I cut them by mistake in mine).

I see what you mean. there should be 35.5 mm for the holes and there isn't! I tried fixing that to no avail (removing or leaving them never matches up) If you have successfully converted it already, I would appreciate a copy so that I can add it to the assembly.

I will get it to you when I get home tonight.

I put the step here so you can grab it: https://www.thingiverse.com/thing:2779123

Veröffentlicht : 21/02/2018 2:14 am
Jonathan Kayne
(@jonathan-kayne)
Trusted Member
Re: CAD models for MK3 parts



I see what you mean. there should be 35.5 mm for the holes and there isn't! I tried fixing that to no avail (removing or leaving them never matches up) If you have successfully converted it already, I would appreciate a copy so that I can add it to the assembly.

I will get it to you when I get home tonight.

I put the step here so you can grab it: https://www.thingiverse.com/thing:2779123

Thanks for that. I replaced your part in my Assembly and put the changes online.

Jonathan Kayne
Virginia Tech Class of 2021 - Electrical Engineering
Thingiverse Profile: https://www.thingiverse.com/jzkmath/about "I am always thinking about making. My future begins when I wake up and see the light." - Miles Davis

Veröffentlicht : 21/02/2018 5:51 pm
llj3663
(@llj3663)
Eminent Member
Re: CAD models for MK3 parts



Does anyone have a solid file for the einsy base? I'd like to modify it but can't get a good conversion.

That was literally the only file I couldn't convert over to step.

I have a SolidWorks part file of my modified version with cable mounts ( https://www.thingiverse.com/thing:2794755 ). I can dummy it back to the standard Prusa Einsy base if you want.

Veröffentlicht : 21/02/2018 6:52 pm
DiscoJon
(@discojon)
Active Member
Re: CAD models for MK3 parts




Does anyone have a solid file for the einsy base? I'd like to modify it but can't get a good conversion.

That was literally the only file I couldn't convert over to step.

I have a SolidWorks part file of my modified version with cable mounts ( https://www.thingiverse.com/thing:2794755 ). I can dummy it back to the standard Prusa Einsy base if you want.

I don't see the solid files on the thingiverse page, could you post them?

Veröffentlicht : 21/02/2018 9:19 pm
llj3663
(@llj3663)
Eminent Member
Re: CAD models for MK3 parts



That was literally the only file I couldn't convert over to step.

I have a SolidWorks part file of my modified version with cable mounts ( https://www.thingiverse.com/thing:2794755 ). I can dummy it back to the standard Prusa Einsy base if you want.

I don't see the solid files on the thingiverse page, could you post them?

Yeah I'll upload once I get off work. Do you want a specific format or does STEP work?

Veröffentlicht : 21/02/2018 10:02 pm
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