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madl3x / x-scara

SCARA CNC and 3D printing machine
GNU General Public License v3.0
152 stars 37 forks source link

Electronics BOM #6

Open vojjta opened 2 years ago

vojjta commented 2 years ago

Hi, I really like this project and I want to build it. But in documentation is missing electronics BOM. For example what endstops are used? I know that hall effect sensors but what type, how they are placed... Thank you

madl3x commented 2 years ago

Hello,

Yes, you are right, I should do an electronics BOM.

Until then, check out this page: https://github.com/madl3x/x-scara/tree/master/hardware/arm

I used magnetic endstops and a mount that holds 5x5 mm cylindrical magnets.

This one should work fine: https://www.my-home-fab.de/en/reprap-3d-hardware/electronics/51/rrd-hall-endstop

You can find other types of magnetic endstops, or you can even make your own.

If you want to use optical endstops, you can use them, but you have to redesign the part that is coupled with the rod, to act as a flag that goes in the optical sensor.

Regards

vojjta commented 2 years ago

Thank you for your answer.

This one should be also ok? Hall magnetic Sensor with analog & digital outs

madl3x commented 2 years ago

It's too long. It will probably fit on top of the arm, but it will not fit on the shoulder joint. This RADDS Hall-Effect could be a second option: https://reprapworld.eu/electronics/endstops/hall_e_endstop/#description

You can find resellers for this one all around the world: http://doku.radds.org/resellers/

rzbsat commented 2 years ago

hi, thank you for sharing this project could you please tell us which controller board are you using ? and please share wiring and schematics thanks a lot

amircescu-gpfw commented 2 years ago

@rzbsat Any Marlin 2.0.5.3 supported hardware will work. Wiring and schematics are given by the MB vendor. Pin assignments are defined for each board, and Marlin will load those definitions once you select the MB you are using in the configuration file. For each MB you have predefined slots for connecting thermistors, heaters, fans, end-stops, etc. This is how 3D printers are built. There is no hardcoded configuration anywhere for X-SCARA, so my schematics will not help you.

I use a (very old) Sanguinolulu V1.2 board with AtMega1264, but this it's not relevant for the general public.

sl1pkn07 commented 2 years ago

if help, my hall units comes from here https://www.ebay.es/itm/221805903273?hash=item33a4a97da9:g:a3cAAOSwnw9Z90Wh (is a local store on my country, no from china (i mean, the delivery)). something similar should be exist in your country (for examplem, from DE https://www.ebay.de/itm/152368482760?hash=item2379de89c8:g:PqQAAOSwOQJeagV8)

greetings

iamthebest22 commented 2 years ago

Sorry for the late question, would this one work? As the RADDS one is out of stock at my location? https://spool3d.ca/hall-sensor-module-endstop/

amircescu-gpfw commented 2 years ago

Sorry for the late question, would this one work? As the RADDS one is out of stock at my location? https://spool3d.ca/hall-sensor-module-endstop/

Yes, it would work. Actually it's the same with the one that I am using.

iamthebest22 commented 2 years ago

Thanks! Now let's hope the newest version of Marlin can do SCARA with his settings fine. I just had to change X-scara to MP_Scara

iamthebest22 commented 2 years ago

Sorry for the late question, would this one work? As the RADDS one is out of stock at my location? https://spool3d.ca/hall-sensor-module-endstop/

Yes, it would work. Actually it's the same with the one that I am using.

nice, how did you mount it? Since it uses two M2 screws, I am not quite sure how to mount it on the elbow one. is there a picture you could show me?

madl3x commented 2 years ago

Sure. Check this pic and this one.

You have many options. I preferred using a strong double adhesive tape along with a tie wrap. After the adhesive hardens the tie wrap is pretty much redundant.

You can also drill the arm plate if you want, and use 2 x M3 screws to secure the endstop.

iamthebest22 commented 2 years ago

Ohhh that one nice. I should be more clear, I meant the other arm, the one where there's less space. Currently I drilled a small M2 hole and used hot glue, and seems to be well, but would definitely like to see wha tyou use.