Hi Awerby,
Thank you for your reply.
Spoiler alert.
Please don't take this personally, but you have just triggered an 85-year old's rant.
As I have chosen to post this in the 'Epoxy-granite'...
Type: Posts; User: greybeard
Hi Awerby,
Thank you for your reply.
Spoiler alert.
Please don't take this personally, but you have just triggered an 85-year old's rant.
As I have chosen to post this in the 'Epoxy-granite'...
Not wishing to upset anyone here, I stopped using ivory, a high-end traditional material for fan makers, many years ago.
However, never having found a good alternative, and my early life...
This is even later ! Now in USA with a manual mat cutter that I built.
Much water under the bridge, but if my profile has been updated correctly, I'm now in Corinth, MS.
Just to update this thread, and to miss-quote Jane Austen, "Dear reader, I married her".
Now living out my days in Mississippi, fan making, but have most of the parts of my cnc build, so going to...
Good grief. So this is what I find, when after an absence of a couple of years, I come by to say Hi to anyone who has a long memory.
Still happy in Mississippi, in spite of all the craziness around....
Thanks for heads up on that one, Jeff.
While it isn't too far from my other part time location in Corinth, it does give me some design ideas.
Regards
John
Here is the diagram of the shape I want to cut. Although the size is a variable, the principle of the machine as I see it should be as simple as possible.
CNC mount cutters exist, and run to about...
As if I hadn't enough on my plate, I'm considering the possibilities of this as a next project.
A picture mount cutter ( I think you call them mats over your side of the pond) that will only be...
Only four weeks to go.
Don't we have any zone members in Northern MS or Southern TN ?
John
I'll certainly give that a try, so thanks for the suggestion.
John
I'm having no luck in finding a source of stainless steel strip 5 mm wide by 0.4 - 1 mm thick, preferably in UK.
I've had a quote for laser cutting from 0.9mm sheet, but that's far too expensive....
Hi All,
I'm going to be in Corinth, MS during September, and it would be a great opportunity for me to meet up with any zone members willing to meet a genuine UK eccentric !
i shall be reasonably...
Yet another idea to throw into the pot, though I'm not sure if I've mentioned it before.
Start with your cnc machine. Replace the router with a spring loaded probe consisting of a polythene tube...
Of course it would be easier, Russell, but hey, where's your sense of adventure :cheers:
John
PS nail decorating parlours may be a local source of small quantities of uv gel, but don't tell the...
The more i think about this gel idea, the more worried I am about the surface tension effect. If it's sitting on a clean surface of the copper, what sort of problems will occur re the cross section...
Screen printers, amongst others, use a uv cured resist. It is quite viscous, but might be an alternative route if you were considering the 3d printer approach.
Perhaps there's a uv curable gel that...
Hi Old Buddy,
I was thinking of contacting you on the very same subject earlier this week, but been dashing about, and didn't get round to it.
It's midnight here, and I'm just back from a 200 mile...
Hi all,
Been a while since I visited the forum, but alongside various other projects ongoing, I now have a 13' long stairlift installation which I need to take out from the house, after the passing...
I guess it's my own fault for a poor choice of the word 'synchronously' in my title. Trying to keep my cards too close to my chest !
Basically trying to get the two arms working together, each...
This is very much the way I am going.
I've built a 6 channel controller/driver, with separate 'homing' circuits for the left and right arms, using optical interupters and logic ic's for each motor....
I have now abandoned the idea of using g-code, and am using a system which is more like addressing the steppers directly in machine code.
Thanks for your interest, but I now consider this thread...
Hi Paul,
Thanks for your input. The 9-axis idea will be my next approach if the first one has no where to go.
John
I have built two identical articulated arms, each has three stepper motors.
This is a question looking for a simple way to run them together, so that the g-code controlling each of them steps at the...
Vegipete, I am deeply grateful. You have given me an answer to my question that a) I can understand, and b) that I am perfectly capable of building and expanding as necessary.
Current price of the...
OK gents, I think I'll call it a day.
Thanks all for your contributions.
Regards,
John
It comes from the geometry of the m/c build, and I would guess its value will be about 50 +/- 10
Yes, I see no reason why not.
This is the number that, when multiplied by the constant,...
Thanks grg12.
I'll need pencil and paper to follow that, but looks good after my second reading.
John
Hi Mariss,
I had to giggle a wiki for CPLD, not having come across them, and got this -
CPLDs were an evolutionary step from even smaller devices that preceded them, PLAs (first shipped by...
I guess that is a fair description, where the 'discrete' also means portable, and to some extent autonomous. I'll go so far as to add that there will be several of them, and synchronized, but that's...
Hi Al,
It could well be that in the long run I might go with some micro or other.
However, at the moment, with my past knowledge waiting to be used, and a load of ics in the junk box, the challenge...