Klipper 3d printer firmware

[Mark Benson]

Like the Gocupi approach but for 3d printers.

https://hackaday.com/2017/12/26/fast-3d-printing-with-raspberry-pi-but-not-how-you-think/

Watch the calibration cube video. Printer acceleration sounds really smooth given the speed... Couldn't find any pictures of finished prints though.
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.

[ward...@gmail.com]

Another excuse to have ready when people ask if my printer works or not - I would print that, but currently swapping over hardware and using experimental firmware

[Bonkers]

Mark

I want/need to "re-enter polite society"....in that I've been totally snowed under for a couple of years...so could not turn up at meets.  I want to build a polargraph etc etc now that I

can look forward to the prospect of NOT having to do an hour journey each way between Poole an Weymouth (Aarghhh!) my "real world" email address is g...@coastelect.com

please reply so I don't get lost again...I'm now out of touch re. the guys and what (if anything) is happening. Have managed to rediscover Ed.

ATB  Graham Coast

[Mark Benson]

Hi Graham,

We are still meeting every 2nd & 4th Thursday of the month at Box44 in
Bmth http://www.box44.co.uk/

The drawing machine is being reworked at the moment. But I have a couple
of PCB kits left for the Raspberry Pi/Arduino version if that is of
interest.

There is a meeting on tonight. There is also a block chain meetup if
that is of interest.

On 2018-01-25 09:44, Bonkers wrote:
> Mark
>
> I want/need to "re-enter polite society"....in that I've been totally
> snowed under for a couple of years...so could not turn up at meets. I
> want to build a polargraph etc etc now that I
> can look forward to the prospect of NOT having to do an hour journey
> each way between Poole an Weymouth (Aarghhh!) my "real world" email
> address is g...@coastelect.com
> please reply so I don't get lost again...I'm now out of touch re. the
> guys and what (if anything) is happening. Have managed to rediscover
> Ed.
> ATB Graham Coast
>
> On Wednesday, 27 December 2017 23:50:57 UTC, Mark Benson wrote:
>
>> Like the Gocupi approach but for 3d printers.
>>
>>
> https://hackaday.com/2017/12/26/fast-3d-printing-with-raspberry-pi-but-not-how-you-think

>> [1]/

>>
>> Watch the calibration cube video. Printer acceleration sounds really
>> smooth given the speed... Couldn't find any pictures of finished
>> prints though.
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>

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>
> Links:
> ------
> [1]
> https://hackaday.com/2017/12/26/fast-3d-printing-with-raspberry-pi-but-not-how-you-think

[Brian Innes]

Hello,

Just checking if we’re meeting tonight?

I’ve been making progress with the ESP32.  I have it receiving MQTT messages and can decode JSON messages in C++.  An issue I’m struggling with now is memory.  The ESP32 cannot hold larger drawings in memory, so we need to either add additional memory or offload the processing.

The processing chain I’m currently working on is:

• Accept draw/move instructions via MQTT
• convert to system coordinates from drawing coordinates
• construct lines from the segments (connected lines between pen down and pen up)
• sort all lines to minimise the movement between lines
• calculate max velocity for all angles in lines
• plan movement for each line (acceleration / developeration constant speed)
• drive steppers for each line 

but this requires that the entire drawing can be held in memory with sufficient working memory to complete the processing steps.

[Mark Benson]

I'll be along tonight.

I've been looking at the hardware side of things, will bring what I
have.

On 2018-02-08 15:58, Brian Innes wrote:
> Hello,
>
> Just checking if we’re meeting tonight?
>
> I’ve been making progress with the ESP32. I have it receiving MQTT
> messages and can decode JSON messages in C++. An issue I’m
> struggling with now is memory. The ESP32 cannot hold larger drawings
> in memory, so we need to either add additional memory or offload the
> processing.
>
> The processing chain I’m currently working on is:
>

> * Accept draw/move instructions via MQTT
> * convert to system coordinates from drawing coordinates
> * construct lines from the segments (connected lines between pen down
> and pen up)
> * sort all lines to minimise the movement between lines
> * calculate max velocity for all angles in lines
> * plan movement for each line (acceleration / developeration constant
> speed)
> * drive steppers for each line

>
> but this requires that the entire drawing can be held in memory with
> sufficient working memory to complete the processing steps.
>

[Edward Ward]

Maybe i ill be alobg  have some neo pixels and hoping to get some help with buttons and arrays 😁

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[Chaz Ford]

I'll be along too!

[Edward Ward]

Srsly,

 

Forget the drawing machine – develop the RepRap controller!!

 

https://www.youtube.com/watch?v=qqQzTvvrXo8

 

 

 

 

From: Chaz Ford
Sent: 08 February 2018 18:44
To: Make Bournemouth Forum
Subject: RE: [MakeBmth] Meeting tonight?

 

I'll be along too!