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3.5 upgrade

in Proforge 3 General Discussion

Hi. Is anyone still active on this forum? If so, is anyone doing the 3.5 upgrade assembly?

Im just starting mine. I was just wondering how it is going for others here?

51 comments

51 Comments

Unknown member

Apr 28

If anyone is out there that is knowledgeable about the 3.5 kit build, I have some programming questions.

is the 3.5 only using Klipper and Marnsail? I am at the part in Step 9 where I put the firmware.bin file on the SD card. In the next step the link brings up an error message.

Is there any use of Octopi and Marlin or should I just stay with Klipper and Mainsail.

I have not set up any network settings yet on the Raspberry Pi board.

Any help is much appreciated. Thanks

Douglas Simms

Apr 28

Replying to

I followed the instructions and I ended up with Klipper and Mainsail. Over the last 2 months, I have experienced enough challenges with getting the printer to print a good first layer that I haven't tried deviating with the software setup.

Actually I'm still having inconsistencies in the first layer if I try to print a 200 X 200 or larger object.

Douglas Simms

Apr 28

Replying to

My challenges have been mostly mechanical.

Robin Benford

Mar 10

Hi. In putty, when Im trying to get the usb id, 2 probems:

when I put the host name into it it says unable to open connection, host does not exist.

But when I type in the ip address it opens up ok. Not sure if this is a problem?

main problem is when Is /I try to do 'ls /dev/serial/by-id/', putty says "ls /dev/serial/by-id/': No such file or directory.

Ive googled it and cannot understand most of the answers. I swapped the usb cable and have done the usual switching on and off!

Any help appreciated, thanks

Olivier Bertini

Mar 10

Replying to

Hi Robin,

Can you provide the output of the following commands from the putty terminal?

lsusb

and

dmesg | grep usb

The idea is to check if the SKR 2 board is being detected by the Raspberry pi.

Also, maybe the 1st thing to try is to change the usb cable from the pi to the printer mainboard. Note that both the pi and the printer board have to be powered.

Robin Benford

Mar 10

Replying to

I've swapped the USB cable twice with good quality cables, no difference. And there are lights on both boards. I did the 1susb and got a return that seems to confirm its seeing the usbs. I'll post the output tomorrow when I'm working on it. Many thanks.

Douglas Simms

Mar 30

Replying to

Hi Robin,

I just went through the software installation again today and re-read your comment. I believe that you did not type the whole line.

The Manual:

ls /dev/serial/by-id/*

Your Line:

ls /dev/serial/by-id/

You missed the asterisk (*) at the end.

Douglas Simms

Feb 24

Hi All,

I have completed the 3.5 Upgrade. YEAH!!

Olivier Bertini

Apr 12

Replying to

Hi Dries,

Sure, no problem :-) I've been pretty busy those days with my work. No much time for printers. I'll try to get something until Sunday.

Best

Olivier Bertini

Apr 22

Replying to

Hi Dries,

I finally found some spare time to draw the scheme about the BED_MESH_OFFSET.

Please keep in mind this rational only applies to a bent/curved X axis. For the Y axis there is no need for correction because everything is aligned. For a curved bed, there is no need for correction either. When both the X axis and the bed are curved, I don't think this technique will work.

Feel free to let me know if you have questions or to challenge my rational.

BED_MESH_OFFSET_scheme_2023-04-22

.pdf

Download PDF

Dries Douterloigne

May 01

Replying to

Thank you for taking the time to help me. It's starting to make sense now. I tried adding the BED_MESH_OFFSET code, which didn't make things worse, but it still wasn't perfect for printing large objects. I might try the belt mod someone posted for the Proforge 3 to sync both z-rods, but that will likely be the last modification I make to this printer.

Douglas Simms

Feb 23

I have completed the 3.5 upgrade to step 9, although I did not put the enclosure panels (Step 7) on yet. I have not finished Step 9 yet, I'm waiting on the First Boot. Here is the Proforge 3.5 at First Boot. I had to move the Touch Screen mounting so that it is right side up. ;^))

Peterg

Feb 23

Replying to

I'm just about where you are too... I just loaded the software last night. Excited to try running it today...

You need to shutdown, and flip the switch on the side of the touchscreen to change it's orientation. I added it as a comment in the instructions...

Robin Benford

Feb 23

Replying to

I'm going to be loading the software soon, building done as well. Even managed to find a raspberry pi!

Douglas Simms

Feb 23

Replying to

Thanks, I'll look for the switch.

Douglas Simms

Feb 19

Started my 3.5 upgrade 2 days ago. It is going fairly smoothly. I have finished Step 12 of the Z-Axis Upgrade.

I had the problems with the belts falling off the front idlers. I've ordered some larger washers from Amazon.

I also had problems tightening the Z-linear slides (rails). The M3X10 screws are too long and hit the back of the exrusions.

I used M3X8 screws and the rails tightened properly.

Also one of the 4 rails is very sticky see the videos of sticky vs. smooth. I hope I can get a replacement from Aneel.

https://youtube.com/shorts/MxbQcuWX4PM?feature=share

https://youtube.com/shorts/M6S13IWVYlQ?feature=share

I'll post again tomorrow.

Dries Douterloigne

Dec 28, 2022

So is the upgrade worth it?

Peterg

Dec 29, 2022

Replying to

I'm still building as well... But so far the upgrade is addressing a number of my concerns, so... Hopefully?

Douglas Simms

Feb 19

Replying to

I'm not sure since I never ran the printer before the upgrade.

Douglas Simms

Apr 12

Replying to

I don't recommend the upgrade. The Z platform/Carriage is not stable from one day to the next.

Antony Rose

Dec 15, 2022

Finally getting round to building more then the base. Life got in the way this year so the upgrade came along at the right time. As did the pi4 availability.

Olivier Bertini

Dec 15, 2022

90% completed :-)

I had to disassemble most of the DSH since in my version all the cables were running through the left side of the DSH unlike on most of the pictures I could find on the web.

Still need to install the enclosure.

The printer is working and the z-tilt is a nice feature.

However, something is still not right with my built (pre-assembled) as I still have a 0.45 mm difference in height of the MIC-6 bed… before the upgrade it was about 1.5mm!

Olivier Bertini

Jan 11

Replying to

Cable chain attached to the left side of the back extrusion.

Cables are attached to the cable relief bracket. Make sure they do not touch the bowden tubes when moving.

The DSH with the Noctua modification.

The cut at the back-left side of the top frame.

Hope this helps. Let me know if you need more details.

Peterg

Jan 13

Replying to

Thanks for the photos! That's great! I like that you used a partial segment of cable chain; that was a good idea... That way you don't have to worry about the chain binding/bunching-up, like what I was fighting.

Thanks for sharing!