Hello gt22
Great directing, on my side I tried too.
I think there are simpler things but it's a start.
@+
escalier.jpg
escalier.jpg
Hello hrey
Here is the version of your staircase quickly made in 5 minutes.
I'm sending you an idea of the staircase as well as a 3d pdf.
If you can't get it back, give me the format you can get back and I'll see how to send it to you.
The export turned the curves into a rough right-hand section, I apologize.
Kind regards
Franck
r15r33_scm.igs
Hi Franck51
after download
you have a problem with the length of the tread
and your first balanced walk which from above seems very fair to me ;-)
Hi hrey
your staircase has no swinging steps
@+ ;-)
Hello GT22
My staircase has many swaying steps, but only 7 steps.
It is an industrial staircase for which it was chosen, not to do a total swing, but only partially.
So for the treads it is the same in the swinging steps, this one is bigger. (In the standard it is only specified that the tread distance between the balanced steps and the straight steps may not be less than 10 mm. With my design, it always feels bigger.
Kind regards
@ Franck51
After downloading and converting this is what I see
something bizzard the sides between my 2 green dots
1199.71 mm and my stroke at 400 mm
so OK my line is not quite in the axis but still it surprises
http://img585.imageshack.us/img585/8034/0mx0.png
In the thread I didn't want to be unpleasant in any way
have a nice day @+ ;-)
No problem for me, I didn't take your remark in an unpleasant way, it was just to explain to you that I design "industrial" staircases and not artisanal staircases.
Then the width of the flight is not 800 but 846 (I'm not sure of the dimension anymore).
So your green dot on the left should be moved outside the stringer and not positioned inside the post
I don't see what your 1199 line corresponds to?
Well, precisely
my line of 1199.71 is the odds between posts
and 400 my axis not in that place I grant you but 1199/2=~ 600
after checking I just noticed
-that I misplaced my points with the evaluate and measure tool on SW on the front view
788 Measure between silt
@+ :-(
Hello
I am also starting to take an interest in the subject of the parametric quarter turn. I read and tried to follow the different posts on this forum and a councurrent, without finding all my little ones:
As much as the vocabulary, it's starting to get good, but I haven't found an explanation on the correspondence between the "stair template" file in solidworks and the "stair stair" spreadsheet offered for download. In order to start with the parameterizable, I think this link is essential, in order to transcribe it into the SW equations perhaps.
I was wondering how the different attempts on this subject were, hence this topic digging.
Thank you
escalier_quart_tournant.zip
1 Like
Hi @tecnao
I was able to open Excell but not your part of the stairs
@+ ;-))
Hi @tecnao
Can you be more specific about what you are really looking for.
I work with Inventor and create parametric industrial staircases using excel sheets.
If I can help you, there's no problem.
Don't hesitate to ask.
Franck
PS: can you put your file in a format readable by any type of CAD (Like step or stl for example).
1 Like
oops, sorry for the late reply, wrong subscription settings as the discussion progresses.
In PJ the SW file in step format, but almost only sketches, not sure if it will pass in step.
Otherwise, in summary, I'm looking to design a simple 1/4 swinging staircase, but I'd like to take the opportunity to do something parametric in order to adapt it if the demand emerges a second time one of these days.
To advance the schmilblick I started to draw a balanced 1/4 turning using the harrow method to calculate the swing, but the result was frankly not ideal aesthetically to have an inner stringer as I wanted it (not very aesthetic breakage).
So I resumed the swinging to limit the number of swinging steps, and go from 10 to 5. Here, the result is much more adapted to what I wanted aesthetically, but probably a little less comfortable.
The change from 10 to 5 balanced steps was unfortunately not done very easily, with many unresolved constraints, to be redone, ... This is where the parametric side would have interested me: to be able to correct just the parameter of the number of steps balanced and that everything adjusts automatically. But maybe I'm asking a little too much. So if you have an idea on the process to follow to achieve this goal, I'm interested.
And if my extrapolation of the 5-step swing is messed up, I'm open to any constructive comments. If Franck wants to see what it would look like with his Inventor configuration, the input data are:
Finished height: 2.91m
staircase width: 0.95m
First quarter length low (I already don't remember the technical name and am too lazy to search): 1.70m
Length second quarter top: 3.49m
Thank you.
gabarit_escalier.step
Hi @tecnao
there is not much on your step??????
try to open it and look there must be a wolf ;-))
@+ ;-)
The file I was taking over was the SW file on this post:
http://forum.solidagora.com/escaliers-3d-solidworks-familles-quarts-tournant-t1987.html
and that you must have taken back from what I understood (I guess the GT22 of Solidagora is the same as the one of Lynkoa)
Hello Tecnao
I just made your staircase (quickly) with our design.
I tried to get your ratings as much as possible but the manufacturer makes me close to it but not exactly.
You wanted: I have:
HT finished 2910 HT finished 2910
Setback from the start : 1700 Setback from the start : 1577
Setback in : 3490 Setback in : 3487
Swing Width: 950 Swing Width: 1000
Our swing is on 7 steps.
stairs.stp
Thank you Franck, it's tiptop. what I would be interested in now would be to have the method that is used to have the same type of possibility in SW instead of Inventor. And like that to be able to adjust to fall on the values that would fit like a glove. Because in fact, I have a few observations:
- the height of the steps is 194mm, so 15 steps, I was going for 17 steps for a height of 171mm. I have a tread of 245, so g+2h = 587. Maybe the right value is somewhere between the 2?
- the inner stringer has a modified width at the connection with the post, which I want to remove because the stringer will be made of flat steel
- The width of the steps is indeed a little too big for my application.
- lastly, it doesn't turn in the right direction for me
I think it's all of these criteria that made me fall on a balance of 5 steps instead of 7. Is it something you set too, the number of steps swayed? Is 5 a problem?
Thank you again, no desire to criticize for the sake of it, but to educate myself, I am not the first staircase manufacturer in France...
Sebastian
Hello Tecnao
Here is the staircase in a right-turn version
To answer your questions:
I can only do stairs with 7 steps balanced on 1 turning quarter. We took this decision for problems of management of our woods so version 5 balanced steps not possible for us.
As for the height of the steps, indeed 17 steps would be more comfortable, but you will have to reduce your lap. This one is calculated on the stride line and with your dimensions it would be about 233.8 (personally I find it small) unless you can increase the starting part, or maybe a compromise to 16 steps
Personally, I prefer stairs with a maximum of balanced steps. The curves of the stringers are more fluid and more aesthetic.
For your adaptation to SW there I'm out of the race dsl
Kind regards
Franck
escalier_dte.stp
Thank you Franck, impeccable. I would also have preferred a swing on 7 steps, but not compatible with a straight stringer as desired. I'm trying to get 16 steps, but these are the limits of my drawing, I have to take back almost all the swinging. But it is by trying that we move forward on the initial question of the automated parametric whole.
Kicking the lap, I read a little bit of everything, and some measure it at 350 from the outside, others at 500 from the ramp (calculation I retained). What is the solution you have chosen in the profession?
Finally, to build the staircase, the excel file that serves as a base generates what exactly: a file of 3D coordinates of the steps?
Thank you again.
Sebastian
As for the tread, the distance is almost always calculated from the inside side of the ramp.
Normally it is half the width of the volley for a width between 800 and 1000 (example for a width of 900 the stride line will be placed at 450 from the ramp), above a width of 1000 the stride line will remain at 500 (example for 1000 stride line to 500 for 1200 stride line always at 500).
There remains a case which is for PMR stairs (person with reduced mobility "elderly person for example") the stride line is set at 350 mm on the outside for a width of 800 and extends to 500 for a flight of 1000.
So we use both depending on the destination of our products.
Then, our excel files allow us to calculate all the dimensions of a part as well as all the machining with their positioning. Each value corresponds to a variable.
All we have to do now is draw the parts by assigning the variables to them.
We have excel sheets with up to 1200 rows of variables and X tab
I hope I have been clear.