Re: First build - large Hex framed Delta - 3DR Mega style April 14, 2016 08:28AM |
Registered: 8 years ago Posts: 177 |
Quote
GroupB
Why not use bigger hole in the effector for the ball so you can adjust them perfectly with something like a jig for spacing and a dial for the Up/Down? The jig then can also be use for the carrier. You can do better than 0.5mm , this is a important measure to get right, try to aim in the 0.05mm (0.002 inch), we talking about the tilt problem if those are not right. I know its hard and will take time to get that kind of precision but at the end you will avoid problem.
Re: First build - large Hex framed Delta - 3DR Mega style April 14, 2016 02:38PM |
Registered: 8 years ago Posts: 356 |
Re: First build - large Hex framed Delta - 3DR Mega style April 14, 2016 05:55PM |
Registered: 10 years ago Posts: 14,672 |
Re: First build - large Hex framed Delta - 3DR Mega style April 14, 2016 08:57PM |
Registered: 8 years ago Posts: 177 |
Quote
GroupB
I did not read anything that said rod spacing need to be accurate , I did not measure mine , but I made a flat bar with 2 hole where my balls sit and use that as a jig on 3 side of the effector and on the 3 carrier so I must have the same spacing around.
Quote
GroupB
Im curious why use rod and linear bearing if you have a extrusion in the middle? why not a linear rail or some kind of Vslot carrier ? to me get 3 tower at the good position look almost a fun thing to do vs 6 independant rod ( took half a day to set my 3 tower)
Re: First build - large Hex framed Delta - 3DR Mega style April 15, 2016 12:43AM |
Registered: 8 years ago Posts: 356 |
Re: First build - large Hex framed Delta - 3DR Mega style April 15, 2016 01:39AM |
Registered: 8 years ago Posts: 177 |
Quote
GroupB
Like are you planing a system of some kind to adjust your linear rod position ?
Re: First build - large Hex framed Delta - 3DR Mega style April 16, 2016 07:59AM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style April 27, 2016 09:55PM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style April 27, 2016 11:41PM |
Registered: 8 years ago Posts: 443 |
Re: First build - large Hex framed Delta - 3DR Mega style April 27, 2016 11:49PM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style April 27, 2016 11:52PM |
Registered: 8 years ago Posts: 443 |
Re: First build - large Hex framed Delta - 3DR Mega style April 28, 2016 01:17AM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style April 28, 2016 01:57AM |
Registered: 8 years ago Posts: 443 |
Re: First build - large Hex framed Delta - 3DR Mega style May 07, 2016 08:25AM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style May 11, 2016 12:51AM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 06:54AM |
Registered: 9 years ago Posts: 1,159 |
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 06:59AM |
Registered: 8 years ago Posts: 177 |
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 07:07AM |
Registered: 8 years ago Posts: 475 |
Quote
dougal1957
Phil
Did you go with the Steel Cored GT2 belt if so What size pulley have you gone For?
Reason I ask is that I put some of it on a printer and it lasted all of 2 days before it stretched and started jumping teeth.
It appears that it can't cope with tight bend radiuses and the Steel cores break internally and one of the teeth instead of being 2 mm pitch ended up more like 5
just a warning.
Doug
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 07:33AM |
Registered: 8 years ago Posts: 177 |
Quote
PRZ
There is an interesting piece about belts on Shapeoko site: [www.shapeoko.com]
So, it seems nothing could replace kevlar for belt reinforcment.
or , simply get larger belts or double them. RobotDigg sells wide and double pulleys for reasonable cost.
Quote
dougal1957
Phil
Did you go with the Steel Cored GT2 belt if so What size pulley have you gone For?
Reason I ask is that I put some of it on a printer and it lasted all of 2 days before it stretched and started jumping teeth.
It appears that it can't cope with tight bend radiuses and the Steel cores break internally and one of the teeth instead of being 2 mm pitch ended up more like 5
just a warning.
Doug
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 07:41AM |
Registered: 9 years ago Posts: 1,159 |
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 08:05AM |
Registered: 8 years ago Posts: 475 |
Quote
Steel cords have higher tensile stiffness, but can't be bent as tightly so they may require larger-diameter pulleys and idlers.
Quote
dougal1957
Think it is the repeated bending/straightening that works hardens the cores and makes them Brittle.
Point was just to make you aware.
Doug
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 08:37AM |
Registered: 9 years ago Posts: 1,159 |
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 10:19AM |
Registered: 10 years ago Posts: 14,672 |
Quote
aussiephil
One thing I don't understand on the DWC web pages is the Machine Information tab under settings
Re: First build - large Hex framed Delta - 3DR Mega style May 16, 2016 07:38PM |
Registered: 8 years ago Posts: 177 |
Quote
dc42
Quote
aussiephil
One thing I don't understand on the DWC web pages is the Machine Information tab under settings
You mean the Machine Properties tab? It shows you the values that you current have set for maximum accelerations, speeds etc. which will be as you have them configured in config.g unless you have amended them since the Duet was reset, or the firmware defaults if you did not configure those items. And it shows the endstop sensor states.
Re: First build - large Hex framed Delta - 3DR Mega style May 21, 2016 10:27AM |
Registered: 8 years ago Posts: 177 |