Hi folks, just starting to plan the next machine but I'm thinking of using lead screws instead of belts this time. What I'm wondering is is it possible to calculate the max speed based on weight moved, torque of the stepper etc? Many thanks. https://reprap.org/forum/read.php?160,725297,725297#msg-725297 Thu, 21 May 2026 06:38:37 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?160,725297,727132#msg-727132 https://reprap.org/forum/read.php?160,725297,727132#msg-727132
The Trinity Aluminatus was a neat idea --- lasted about 1 year
the designer / producer was crazy --- the business went under

He struck a deal with PCB linear to provide integral rail / leadscrew

[www.pbclinear.com]

Lots of pix here

[www.flickr.com]

A friend has three of them. working great

Linear rails the way to go --- DD turned me on to them
Even the cheep chinese ones (with a good clean up) are great

linear rail -- leadscrew combo may take some design ballet

:S]]> cozmicray Stepper Motors, Servo Motors, DC Motors Wed, 30 Nov 2016 15:18:57 -0500 https://reprap.org/forum/read.php?160,725297,726914#msg-726914 https://reprap.org/forum/read.php?160,725297,726914#msg-726914 What! Are you saying the prusa isn't a revolutionary self replicating printer that is going
to end up in every home with people able to print their own meals? Well that's what the
advertising says. :p

Had a read and look at the aluminatus. Umm, i think the politest thing i can say is expensive.

I will have say that it is a real balancing act deciding belts or lead screws. Cost v simple etc.
If there was a printer that uses v slot with only lead screws i could look at, that would simplify
everything. Bodging one by mutating a corexy d-bot into a lead screw version is tempting.]]> friarfish Stepper Motors, Servo Motors, DC Motors Tue, 29 Nov 2016 23:58:47 -0500 https://reprap.org/forum/read.php?160,725297,726867#msg-726867 https://reprap.org/forum/read.php?160,725297,726867#msg-726867 Prusa a real Rolls Royce of FFF printers using belts.
:X

DD right
A little maintainence or upgrade on your Yugo
could make it a duce coup? ---- or a Chicken coop?]]> cozmicray Stepper Motors, Servo Motors, DC Motors Tue, 29 Nov 2016 16:44:17 -0500 https://reprap.org/forum/read.php?160,725297,726819#msg-726819 https://reprap.org/forum/read.php?160,725297,726819#msg-726819
The main advantage to screws over belts is the elimination of print artifacts like ringing. Screw drive is typically noisier than belt drive because the screws and bearings are pretty efficient at transmitting vibrations from the motor to the rest of the printer.]]> the_digital_dentist Stepper Motors, Servo Motors, DC Motors Tue, 29 Nov 2016 13:31:30 -0500 https://reprap.org/forum/read.php?160,725297,726737#msg-726737 https://reprap.org/forum/read.php?160,725297,726737#msg-726737 I was thinking of lead screws as i'm a bit tired of the pain in the butt belts
on the prusa. Paying a bit to avoid bed slips seems fair.]]> friarfish Stepper Motors, Servo Motors, DC Motors Tue, 29 Nov 2016 06:42:55 -0500 https://reprap.org/forum/read.php?160,725297,725390#msg-725390 https://reprap.org/forum/read.php?160,725297,725390#msg-725390 You got money to burn?


You may have to look at Multi-start lead screw.

Aluminatus 3D printer -- uses a PCB linear SIMO with multi-start screw.

PCB linear has design tools

:S]]> cozmicray Stepper Motors, Servo Motors, DC Motors Wed, 23 Nov 2016 18:53:55 -0500 https://reprap.org/forum/read.php?160,725297,725332#msg-725332 https://reprap.org/forum/read.php?160,725297,725332#msg-725332 the_digital_dentist Stepper Motors, Servo Motors, DC Motors Wed, 23 Nov 2016 12:38:52 -0500 https://reprap.org/forum/read.php?160,725297,725301#msg-725301 https://reprap.org/forum/read.php?160,725297,725301#msg-725301 this wiki page.]]> enif Stepper Motors, Servo Motors, DC Motors Wed, 23 Nov 2016 10:50:08 -0500 https://reprap.org/forum/read.php?160,725297,725297#msg-725297 https://reprap.org/forum/read.php?160,725297,725297#msg-725297 just starting to plan the next machine but I'm thinking of using lead screws instead of belts this time.
What I'm wondering is is it possible to calculate the max speed based on weight moved,
torque of the stepper etc?


Many thanks.]]> friarfish Stepper Motors, Servo Motors, DC Motors Wed, 23 Nov 2016 10:11:08 -0500