Search found 55 matches

by david
Wed Jun 05, 2019 7:47 pm
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

Re: PowderMaker1 3DP printer

Hi, Sorry for my slow update. I'm working on the electronic part. The project is still going and I'll definitely make the first print during this summer. maxt, thanks for your input. Re the commercialisation, it is a bit early to tell as I'm not sure about the total cost and the actually performance...
by david
Mon Apr 08, 2019 9:56 pm
Forum: 3DP printing
Topic: Generic powder machine controller
Replies: 2
Views: 480

Re: Generic powder machine controller

it'll be something like this,
ctrl.JPG
ctrl.JPG (146.26 KiB) Viewed 469 times
about 110mm x 105mm x 55mm
by david
Sun Apr 07, 2019 2:07 pm
Forum: 3DP printing
Topic: Generic powder machine controller
Replies: 2
Views: 480

Generic powder machine controller

Hi, I'm designing an electronic controller for small powder machines (no long distance signal). I try to make it a generic configurable control box. The hardware is based on, - 500MHz 32bit processor with FPU and 64MByte RAM for print image processing; - 16MByte flash + TF card for storage; - FPGA f...
by david
Fri Mar 08, 2019 6:58 pm
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

Re: PowderMaker1 3DP printer

The problem with acrylic is: it deforms. So for next build I'll use laser cut aluminium and cnc machined aluminium.

This version will use epson printhead. The life time of the head can jet about 22 litter liquid, which hopefully will print more than 100 kg powder.
by david
Fri Mar 08, 2019 6:53 pm
Forum: 3DP printing
Topic: The Z400 adventure
Replies: 10
Views: 1114

Re: The Z400 adventure

That's really cool. What slicing software this Z400 is using? is it capable of printing in colour?
by david
Mon Mar 04, 2019 11:42 am
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

Re: PowderMaker1 3DP printer

Partially built prototype
p1.jpg
p1.jpg (430.06 KiB) Viewed 1229 times
by david
Tue Feb 19, 2019 10:38 pm
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

Re: PowderMaker1 3DP printer

We know how to control a few Xaar and EPSON printheads. Although they are not fully tested, they should work to deliver the basic function. The TIJ head like HP45 still remains as an option for its lowest cost and simplicity.
by david
Mon Feb 18, 2019 11:54 am
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

Re: PowderMaker1 3DP printer

thanks for your suggestion. I've designed a top tray for the digging out stage.
pm1_2.JPG
pm1_2.JPG (213.14 KiB) Viewed 1352 times
by david
Sun Feb 17, 2019 8:09 pm
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

Re: PowderMaker1 3DP printer

it's going to be made from PMMA, aka acrylic, sheets. So it's probably not strong enough to hold metal powders. However, acrylic is easy to cut with laser and easy to be glued or screwed together, besides acrylic is one of the strong plastic normally available. There will be no top surface sheet. Th...
by david
Fri Feb 15, 2019 10:45 pm
Forum: 3DP printing
Topic: PowderMaker1 3DP printer
Replies: 15
Views: 1933

PowderMaker1 3DP printer

PowderMaker1 is a desktop 3DP printer I'm currently building. The basic specification is as below, - Build volume: 17cm x 20cm x 18cm(H); - dual cylinder structure, no heater so far; - roller diameter 35mm for a denser powder bed; - printhead: piezo inkjet; (Epson, Xaar, Ricoh, etc) - "ink": water b...