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Discussion in '3D printers' started by Keith Davis, Sep 23, 2017.
A beefed up modification of the TrueUp Kit project
Keith Davis published a new build:
Read more about this build...
Thanks for sharing Keith. Could this version be expanded to a 300 X 300 mm bed?
I see no reason why not. The arms would maybe need to be extended, but even if the Y rails were attached part way under those Y rails it would be OK really. The big problem is the closed loop Z axis belt. At 100mm wider bed you'd need a 200mm longer belt (816). This 810 should work 784mm or 810mm 2gt endless belt - RobotDigg.
In fact, I'm trying to get the time to build one 300x300 and offer it from my website. Actually I'm even considering having a detachable 90 degree angle from the front and top so it forms a box for shipping assembled.
is there a way to export the green parts as a stl from sketchup
of do you have them as stl files
thanks for the great work
In Sketchup menu open the Window>Extension Warehouse.and search for STL EXPORT. Select the 3rd one down "Sketchup STL by Sketchup Team". Install it. The Export STL option will appear on the Menu>File group along with an Import option that can import STLs.
Thanks for the quick reply
i did that and it exported as 1 big stl
just wanted to print the green items out
is there a way to just export the green items into a file for each
i know i am asking a lot
the reason i like your version so much is the 2040 v-slot
i have a uncompleted dbot corexy. which isnt finished and my living arangments now i dont have the room. i didnt realise how big it is
going to repupose the v-slot and parts to your build
got it all only have to print that plastics
If you come up with the plans for the 300X300 version, I would love to build one.
Just figured out how to extract out of SketchUp
mine will be for a plate of 250x250
the more I look at this printer the more I like it a lot
the stl export option exports only 'grouped' parts. If you have all the pars selected it will export them all in one file. If you click on each part individually, and you see it in the blue cube wire frame (indicating that they are a group), it will export only that part.
The best way to export a single part is to click on the part all the way down to where you have highlighted the raw part (outlined in blue with blue dots in the faces). That way you know you have drilled down through all the groups and components)
A 300x300 requires no changes in printed parts. Cut the 2 Y axis rails an extra 100mm long and extend out over the front. The Y belt does not need to be a closed loop belt. I use 200x300 beds in my shop and they are done this way. You might want to add a front piece bridging those two Y rails but it's not really necessary.
Cut the 20x60 center bar 100mm longer and the top 20x20 rail 100mm longer and use a 900mm close loop belt for the Z axis. Add 100mm to the X axis bar when you cut it too. The X axis belt does not need to be a closed loop belt.
Martin, for a 250x250 plate look at te instructions I just gave Anthony for a 300x300.
Fantastic thanks keith
Thank you. I will post the build once I have made it.
Can you post the STL's Keith?
Thanks keith for your great work
Thanks Keith....fast response as always!
great work on the stl's thanks again
can i trouble you if you have the time to post a couple of real-life photos of the bold of a link to some
i am at the build stage just wanting to get a better idea the 3d pics are great but real time photos are good
thanks in advance
Sorry Martin, I do not have any photos or vids of the Bold. I built it on request for a customer and didn't think to take camera to it before shipping it.
Do you stock the mds nylon rod
Carnt find anywhere in Australia
And Amazon won't ship
I can buy and ship to a us address then need somebody to cut into quarters and post to me
I have 4 nylon rods that are already cut the right length. They are not the MDS, I don't use MDS on my own TrueUp glides, that was actually just for advertising since I had some MDS from another project. These are 606 nylon.
Give me that usa address and I'll ship them.there, no charge
Mate thanks I'll get it now
Here you go
SM-2172-9584 MARTIN Thompson
Address line 1
14601 North Bybee Lake Court
Address line 2
(503) 736 5916
Cheers this mob will ship to me in Australia and I pay postage here
I'll have that in the mail tomorrow morning. Glad to help.
Mate back to you
I can't wait to get your design up and running
Looks smooth and sleak
Keith a very big thanks just got a confirmation email that auspost has them and are on there way.
Just a couple of questions
1. the 8mm o/rings where do they go.
2. the 4 8mm locking rings for the threaded rod, what did you and where did you get them from
I ordered what I thought they were and they came and the od is way to big and high to use
The bearing on the very bottom of the 8mm Z screw is in a bracket recess. If you jab the pulley up against that bearing to keep it in place the pulley will engage the outer race of the bearing instead of the inner race. A washer is needed between the pulley and bearing that is the OD of the inner race. I use an o-ring. You cannot find washers that will do the job. But you can print one. 2mm high, 13.5mm OD, 8.5mm ID should do it.
The lock collars are from Openbuilds. On my first one I didn't have any lock collars so I instead used 2 M8 metal nuts, one jabbed against the other for each lock collar. You probably will not need a washer between the bottom nut and the bearing inner race below it, nuts tend to be small enough outside size to fit the inner race
Hi Keith, I've been following your builds since I first saw the OneZ. The single stepper running 2 lead screws is what caught my eye. I think I finally have enough knowledge to give one of your designs a try. I like the idea of a 300 x 300 Bold. I will be taking my time and I'm printing off a highly modded Tevo Tarantula at the moment. How tall can I go with the Bold. I'll be using 2040 in place of the 2020's everywhere except for the front to connect to the 2 side pieces. Maybe overkill but I like it sturdy.
The guy I designed the Bold for took his up 18 inches.
Hi Keith I left a message about the stl's for the bold in the wrong discussion group. Sorry about that. Too many tabs open.