Thingiverse
K40 motorized bed (360x273mm) by paulg4h
by Thingiverse
Last crawled date: 2 years, 10 months ago
Last edit 30.05.2021: add bed support with an additional 10x10 shaped tube rotated by 45 degrees.
edit 26.05.2021: Add more pictures with the end stop and also the length of the shaped tubes, detail picture of the brass nuts, add the link for the ball bearings, update the print settings.
Please keep in mind this is not the cheapest one especially if you need to source everything! But when you do have some of the parts already feel free to use the FreeCad files and modify them to your needs.
It also needs some other board to control the bed, but with that you can build an auto focus easily.
The tubes can connect by glue or an small screw as shown in the detail picture of one brass nut from below.
The outer dimensions of the upper bed are 360 by 273mm --> check if this fits your need or the belt will not fit without modifying some parts!
BOM:
From local hardware store:
2m 10x10mm aluminum shaped tube
Sheet of stretch metal
4x ball bearings like:https://www.amazon.de/gp/product/B083DK1XZ6/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
1x 1250mm GT2 belt like:https://www.amazon.de/gp/product/B07NDYHXST/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
4x 8mm GT2 Pulley like:https://www.amazon.de/gp/product/B07K7BJBWB/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1
2x 5mm Idler like:https://www.amazon.de/gp/product/B07RV2T54M/ref=ppx_yo_dt_b_asin_title_o04_s02?ie=UTF8&psc=1
1x Stepper like:https://www.amazon.de/LDO-POWER-Pancake-Motor-LDO-42STH25-1404MAC/dp/B07ZHLK73B/ref=sr_1_7?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=0.9deg+Nema+17&qid=1621960523&s=industrial&sr=1-7
8 Magents 8x3 like:https://www.amazon.de/gp/product/B07JHQNDZC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1x Z stop Micro Switch like:https://www.amazon.de/WINOMO-Premium-Mikroschalter-Roller-Endschalter/dp/B01LWI1PKU/ref=sr_1_1_sspa?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=microschalter&qid=1621966816&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzQTJSVEsxRFhXQTdOJmVuY3J5cHRlZElkPUEwOTgzNDQwMkdWWlhaTzZaN1NGUCZlbmNyeXB0ZWRBZElkPUExMDAwNTE1UUg1VzhMUjdCRzdJJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
T8 rod with 2mm Lead T8x2:https://www.amazon.de/gp/product/B07QXYT9MH/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&th=1
Choose the length you need and cut it, add some extra Brass nuts to get four in total.
Some melding nuts M3 and M5 and screws and bold too.
edit 26.05.2021: Add more pictures with the end stop and also the length of the shaped tubes, detail picture of the brass nuts, add the link for the ball bearings, update the print settings.
Please keep in mind this is not the cheapest one especially if you need to source everything! But when you do have some of the parts already feel free to use the FreeCad files and modify them to your needs.
It also needs some other board to control the bed, but with that you can build an auto focus easily.
The tubes can connect by glue or an small screw as shown in the detail picture of one brass nut from below.
The outer dimensions of the upper bed are 360 by 273mm --> check if this fits your need or the belt will not fit without modifying some parts!
BOM:
From local hardware store:
2m 10x10mm aluminum shaped tube
Sheet of stretch metal
4x ball bearings like:https://www.amazon.de/gp/product/B083DK1XZ6/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
1x 1250mm GT2 belt like:https://www.amazon.de/gp/product/B07NDYHXST/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
4x 8mm GT2 Pulley like:https://www.amazon.de/gp/product/B07K7BJBWB/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1
2x 5mm Idler like:https://www.amazon.de/gp/product/B07RV2T54M/ref=ppx_yo_dt_b_asin_title_o04_s02?ie=UTF8&psc=1
1x Stepper like:https://www.amazon.de/LDO-POWER-Pancake-Motor-LDO-42STH25-1404MAC/dp/B07ZHLK73B/ref=sr_1_7?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=0.9deg+Nema+17&qid=1621960523&s=industrial&sr=1-7
8 Magents 8x3 like:https://www.amazon.de/gp/product/B07JHQNDZC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1x Z stop Micro Switch like:https://www.amazon.de/WINOMO-Premium-Mikroschalter-Roller-Endschalter/dp/B01LWI1PKU/ref=sr_1_1_sspa?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=microschalter&qid=1621966816&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzQTJSVEsxRFhXQTdOJmVuY3J5cHRlZElkPUEwOTgzNDQwMkdWWlhaTzZaN1NGUCZlbmNyeXB0ZWRBZElkPUExMDAwNTE1UUg1VzhMUjdCRzdJJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
T8 rod with 2mm Lead T8x2:https://www.amazon.de/gp/product/B07QXYT9MH/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&th=1
Choose the length you need and cut it, add some extra Brass nuts to get four in total.
Some melding nuts M3 and M5 and screws and bold too.
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