E3d Toolchanger to a Leapfrog frame

[o_lampe]

@Pertti
The belts around the stepper pulleys wrap only 90°. This isn't enough fo my liking.
How much does the X-axis sag with the unsupported linear rail? I have the same on my IDEX, but that beam is only 300mm.

[Pertti]

@o_lampe said in E3d Toolchanger to a Leapfrog frame:

How much does the X-axis sag with the unsupported linear rail? I have the same on my IDEX, but that beam is only 300mm

I tried to measure it, by pressing by 337 grams it was about 0.3 mm. I think it is not good but I can fix it later if necessary. Good that You asked, thanks.

[Pertti]

First test runs are done . The tool0 works ok. Next leap is the slicer. I´m familiar with Cura. Any opinions or examples? Or do I have to use some other slicer?
My new 230v bed heat is a surprise, the temperature rises really fast. It looks like the machine first heats the bed and when it´s done then it starts with the tool. Is it possible to start both the bed and the tool heating at the same time?

[Pertti]

My first attempt with two tools failed. The toolchanger did not catch the tools. Should there be start and end codes for both printer and tools in the slicer (Cura)? T0 and T1 drop and pick do their job properly when tested manually.
Thanks for help in advance!

[dc42]

@pertti you should not need to set up any tool change scripts in Cura, assuming you have done everything necessary within the tool change files. Are you certain that your tool change files (tfree#.g, tpre#.g and tpost#.g) work regardless of where on the bed the pickup head is when you change tools?

[Pertti]

@dc42 Maybe the distance between T0 and T1 is too short, 70 mm? It looks like the x-carriage approaches the tool diagonally and possibly touches the neighbouring tool. I think that the final approach should be like the airplane landing circuit: the final is parallel with the runway. Can this be achieved by adjusting the tpre#.g ? Or should I spread the distance between tools? Then I loose one tool.

[jay_s_uk]

@pertti adjust tpre.
for example, move to the X coordinate first and then move in Y. Means you're taking a straight run up

[Pertti]

@jay_s_uk That´s a square advise! thnks.

[Pertti]

@pertti BUT. Tool1 works ok, somehow T0 does not. The toolpick 0 macro works fine, When I start printing the Tool 0 is selected and moved backwards but then it loosens the screw and does not print. After that the screw is tightened and "printing" ends. Also Z-homing becomes "insufficient". This happens after the printer tries all by itself to home all.
I have completely no idea to fix this.

[Pertti]

@dc42 Now I removed all scripts from Cura and that was the answer to my problem.