Best posts made by kjiwa

This is my first working delta build [1]. I learned a ton, but it is by no means a perfectly precise build, despite my best efforts. However, it does work, so I'll take it as a win.

The T3P3 kits are no longer available, so I sourced all of the parts independently, and upgraded parts where and when I thought appropriate. So this build has:

• A Duet 2 WiFi with 4.3" PanelDue
• Haydn Huntley's magball arms
• An Orbiter 2.0 extruder
• A 24V heated bed
• An E3D Revo Micro hotend

[1] My first actual build was based on Johann's original design with 1515 extrusions. I met him several years ago and he gave me a box of loose parts, most of which came from an incomplete OpenBeam kit. I eventually completed the build (that being my first substantial electronics project), but my first 4-5 layers came out very poorly. Despite replacing nearly every component in the build, I never did figure out what was causing the problem and eventually abandoned the build and started over.

@aerouta I use a 3510 fan for the print fan and a 2510 fan for the hotend fan. I was able to make a 40mm fan work for the print fan, but the clearance was too close for comfort. I find 35mm works nicely. I also replaced the 5V stock Revo fan with a 25mm 24v fan. 25mm was the smallest size I could find that operated on 24v.

Hotend Fan

Print Fan

The models are parametric, so they can be made to fit other fan sizes. I'm happy to share them if anybody is interested.

• 25mm Hotend Fan STL
• 35mm Print Fan STL

I put some more work into my build and managed to get rid of the twist. My prints are coming out very nicely now. Thank you everyone for the help.

I believe my issues came from two major areas:

1. I mentioned earlier that my bed had some tilt to it. I was aware of the tilt, but I was under the impression that the Duet controller could compensate for it. The documentation states that a level bed "isn't essential, because RepRapFirmware can compensate for [it]." Anyway, I redesigned my bed mounting parts and gave the bed a lot more support.

2. I am using FSRs, but I had not done a great job of calibrating them. This meant that in some cases the nozzle had to depress the bed a lot to generate a reading. When I redesigned the bed mounts, I also used the opportunity to calibrate the FSRs and to make sure that their ambient resistance was in a range where they would be sensitive enough to detect approximately 500g of mass.

I still have some other settings to dial in now, but at least I can move on from worrying about the straightness of my prints. Thanks again!