Hi everyone, just wanted to introduce the project that I am working on, a DIY high temperature 3d printer. I have been working on it for a couple of months now, and the design is almost finished. It features all high quality parts from dyzedesign, Bosch Rexroth, Duet3d, alphacool and many others!

The finished design will have a build volume of 240x240x275mm, 500c watercooled hotend, 200c capable bed, heated build chamber and filament chamber.
For the heated chamber I will be using 3 200 watt ptc heaters with a fan slowly blowing hot air in the chamber, with this I hope to be able to reach a chamber temp of around 100-120c. The render below is an indication of the design, there have already been some changes to it

Now it is just waiting on the last parts to start the construction, the frame is already standing as can be see. I am also working on a website for this project, so that should be up and running in the next couple of weeks!

Will keep this post updated on any further process made!

Regards,
Rik

@kstra It uses the CoreXY motion system from e3d unfortunately still waiting for some parts so it might take a while for it to be finished

Fixed the problem with the end stops! Added a '!' to invert the signal and now is everything working as intended. Thanks!

@Phaedrux Yea I think that that is happening in my case. It is also a really small movement only a couple of mm

@Manfred53 It is a H-bot design, same as a coreXY just with 1 belt

@Stephen6309 This is what my homingfile looks like, any idea what could be wrong?

@Stephen6309 Thanks for your quick reply. When giving the M119 code I get the following;

The motors are moving the right way, only when homing they move the other way for some reason

Hi everyone,

I am working on the finishing touches of a high temp printer using the CoreXY (H-bot) system. Everything appears to be working as intended however when I want to home all the axis the printhead only moves a really small amount (2 maybe 3mm) in each axis. Beacaus of this I can't home the printer, also when (trying to) homing, all the axis move in the wrong direction.

Does someone have an idea why this happens? I have attached the config.g and all the homing files. Also a picture of the H-bot setup.!

homez.g homey.g homex.g homeall.g config.g

@kstra It uses the CoreXY motion system from e3d unfortunately still waiting for some parts so it might take a while for it to be finished

@jens55 Yes, they will be lasercut and bend by a local company!
There is guide on the Dyze Design website about installing them (https://docs.dyzedesign.com/liquid-cooling.html#liquid-cool-your-extruder) it is just attached to the outside of the motor, so no need to take it apart

@jens55 Jup, heavy it wil be around 80kg according to SolidWorks...
No probs, the cooling blocks seem well engineered. Can't wait to try it out, when all the other parts are here. (still waiting on all the sheet metal parts and some electronics)

@jens55 The inside wall of the build chamber is made of stainless steel (2mm) then there is a 30mm layer of rockwool followed up by a outer layer of 2 mm aluminium. So there is hopefully not a hole lot of heat losses.
Both the hotend and extruder are watercooled with the cooling blocks from dyze