Here’s one that I have used successfully:
https://www.thingiverse.com/thing:16627
It is a parametric pulley designed in OpenScad. I believe the Thingiverse
website allows you to configure openscad designs from the website, then
download the.stl. But you can also download the Openscad file.
One key to good FDM printing is a steady ambient temperature *with no airflow*
around the printer. A bit of a breeze can cause uneven shrinkage and warping.
That's why some printers are enclosed and building a printer enclosure is a
popular thing.
If you're wanting to get your 3D printing feet
I often incorporate a slot inside the gear or
pulley (like a keyway) the width of a nut.
Slip a nut down the slot and screw the set
screw into the nut through a radial hole. Now
the force is between the nut face and the
plastic part (compression) rather than on
fragile threads in the plastic.
To find a well-designed timing pulley, go to any web site that sells
pulleys. SPD/SI is one of the best.Then find the pulley or gear you
would like and there will be a link to download a CAD file for that exact
gear/pulley. McMaster Carr also has CAD files for all their stuff. So dose
Boston
Yes, the better one is better, especially when you want to move to AB or
other plastic types. Some people like to print on glass. I use aluminum
bed at 60 C coated with glue stick glue. Glass with hair spray works and
blue painters tape. Everyone developes their own prefferce.
As for
Use half a shaft coupler as a hub for attaching a 3D printed part to a shaft.
https://hackaday.com/2019/09/02/misuse-this-part-to-attach-3d-printed-stuff-to-a-shaft/
On Thursday, May 28, 2020, 12:11:32 AM MDT, Thaddeus Waldner
wrote:
Here’s one that I have used successfully:
On Thursday 28 May 2020 02:08:46 Thaddeus Waldner wrote:
> Here’s one that I have used successfully:
>
> https://www.thingiverse.com/thing:16627
>
> It is a parametric pulley designed in OpenScad. I believe the
> Thingiverse website allows you to configure openscad designs from the
> website,
Greetings all;
I come in search of help to make the pulleys to motorize this BS-1.
Here is my mental vision.
1; 3 NM motor on the rear with about a 15 tooth 2mm pitch by 10mm pulley
on it. Shaft stickout is to dial side of the BS-1. Put about a 15 tooth
pulley on motor. Make that on new
On Thu, 28 May 2020 at 17:17, Gene Heskett wrote:
> 5; using new printer, make a 2 step pulley with recesses for a pair of
> ball bearings to turn on #4. Tooth count of larger step of this pulley
> so it clears the mills table,(and possibly the worm shaft) but will need
> an offset outward to
With all this discussion of rotaries and 4-th axes,
I thought I'd toss in the 4 axis router project I
undertook during the last three weeks for the
purpose of making some small Delrin parts for
a student's engineering senior project. The
parts could not be made on our cnc lathe or
3 axis mill, so
On Thursday 28 May 2020 13:55:28 andy pugh wrote:
> On Thu, 28 May 2020 at 17:17, Gene Heskett
wrote:
> > 5; using new printer, make a 2 step pulley with recesses for a pair
> > of ball bearings to turn on #4. Tooth count of larger step of this
> > pulley so it clears the mills table,(and
While waiting from printer and parts, the best thing to do is to make a 3D
model of the BS1 unit. Then as you collect 3D models of the pulleys and
other parts put them on the BS1 unit where they go. This allows you to
check clearnces and even thingd like "Can I get an Allen key to the set
>
> The pulleys coaxial with the rotation is a neat idea.
> But how much gear-own do you need?
>
> I ran my BS0 with direct drive and a tiny little servo (1Nm?) and it
> was pretty much OK.
>
You tested the BS0 empty? What if there is a casting mounted in it so as
to present an eccentric load?
On Thu, 28 May 2020 at 22:02, Chris Albertson wrote:
> You tested the BS0 empty? What if there is a casting mounted in it so as
> to present an eccentric load? Also what if the machine operation places a
> force on the part that does not intersect the rotation axis? The motor
> has to hold
awesome ralph
On Fri, May 29, 2020 at 9:59 AM Ralph Stirling <
ralph.stirl...@wallawalla.edu> wrote:
> With all this discussion of rotaries and 4-th axes,
> I thought I'd toss in the 4 axis router project I
> undertook during the last three weeks for the
> purpose of making some small Delrin
On Thursday 28 May 2020 18:36:10 andrew beck wrote:
> hey gene
>
> sorry for the slow reply
>
> just getting to this grounding thing now.
>
> currently I have single large copper block with a lot of holes in it
> for terminals, this is connected to the earth(ground) wire that goes
> back to the
>
> Connect all grounds to this bolt, checking that they are not grounded at
> the far end. By doing this, you are establishing a single point ground
> that is the zero volt reference for the whole system. Connect this bolt
> to the building static ground, the bare wire in most power cabling.
>
>
PLA plastic made from plant oil, not petroleum. It smells a little like
popcorn. The odor is a little less than microwave popcorn. Most
people find it is not objectionable. They claim PLA is biodegradable
but I've yet to see any degradation when left outdoors.
On Thu, May 28, 2020 at 3:46
On Thursday 28 May 2020 16:59:17 Chris Albertson wrote:
> > The pulleys coaxial with the rotation is a neat idea.
> > But how much gear-own do you need?
> >
> > I ran my BS0 with direct drive and a tiny little servo (1Nm?) and it
> > was pretty much OK.
>
> You tested the BS0 empty? What if
On Thu, 28 May 2020 at 23:46, Gene Heskett wrote:
One final Q, how much stink is there to running one of these
>
Some but not a lot. Whether it is too much depends on perspective. I don't
mind it at all.
With the window open and the door shut it would be acceptable to anyone
willing to be
hey gene
sorry for the slow reply
just getting to this grounding thing now.
currently I have single large copper block with a lot of holes in it for
terminals, this is connected to the earth(ground) wire that goes back to
the whole shed main ground wire rod in the dirt
all my servo drives and
On Fri, 29 May 2020, andrew beck wrote:
Date: Fri, 29 May 2020 10:36:10 +1200
From: andrew beck
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
hey gene
sorry for the slow
On Thursday 28 May 2020 21:01:42 andy pugh wrote:
> On Thu, 28 May 2020 at 23:46, Gene Heskett
> wrote:
>
> One final Q, how much stink is there to running one of these
>
>
> Some but not a lot. Whether it is too much depends on perspective. I
> don't mind it at all.
>
> With the window open and
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