Ok. I am making a horizontal mortiser and making up the details as I
go along. I want it to have X,Y and router up/down (z) degrees of
freedom.
I'm using roller skate bearings for the guides and I am hoping that
they stay tight against the rails over time. (time will tell). I want
to use stuff that I have laying around for the parts.
Comments, suggestions? Let me have it.
http://www.garagewoodworks.com/H-mortiser.php
On Sep 22, 10:25=A0am, Larry Jaques <[email protected]>
wrote:
> On Tue, 21 Sep 2010 19:33:13 -0700 (PDT), GarageWoodworks
>
> <[email protected]> wrote:
> >Ok. =A0I am making a horizontal mortiser and making up the details as I
> >go along. =A0I want it to have X,Y and router up/down (z) degrees of
> >freedom.
>
> >I'm using roller skate bearings for the guides and I am hoping that
> >they stay tight against the rails over time. (time will tell). =A0I want
> >to use stuff that I have laying around for the parts.
>
> >Comments, suggestions? =A0Let me have it.
>
> >http://www.garagewoodworks.com/H-mortiser.php
>
> Aren't you worried about compression of the plywood in the area of
> those bearings, Brian? =A0It feels to me like a problem waiting to
> happen. =A0
Not sure I understand your concern here. The rails are thicker than
the bearings so the load from above is on the rails not the bearings.
The rails will be waxed on the bottom. The bearings only contact the
rails from the sides.
>
> Most folks use ball-bearing drawer glides or LMBs.
I would use use ball-bearing drawer guides if I had some. If the
bearings I'm using fail this is where I am headed next. Should be an
easy swap even after everything is assembled.
>
> http://www.familywoodworking.org/forums/showthread.php?t=3D3276
>
> http://en.kendincos.net/video-jtvrfdfh-multi-slot-mortising-machine.htmlh=
ttp://woodgears.ca/slot_mortiser/index.html
> Really nice machine. =A0This guy's good.
The Woodgears one is really good. I plan on using some of his ideas
in mine by looking at his photos.
>
> http://www.lm76.com/=A0possible source for LMBs
>
> --
> Some people hear voices. Some see invisible people.
> Others have no imagination whatsoever.
On Sep 22, 1:20=A0am, "Lew Hodgett" <[email protected]> wrote:
> "GarageWoodworks" wrote:
> > I'm using roller skate bearings for the guides and I am hoping that
> > they stay tight against the rails over time. (time will tell).
>
> -----------------------------
> Roller skate bearings can hardly be considered "Precision" which you
> will require.
Should be ok. I'm going to give them a try and see how well they
perform. I can always swap them out for something else later. My
biggest concern is having them move. They are held down with a washer
on top and a wood screw through the middle. The screw is much smaller
in diameter than the diameter of the opening in the bearing.
>
> Use the basic double sealed "203" ball bearing for your design.
>
> There are more "203" (0.669" bore) bearings manufactured that all the
> other size ball bearings in the world, thus it will be the lowest
> price ball bearing available.
>
> BTW, a basic "Water pump" bearing has possibilities for this
> application, might want to look at it.
>
> Have fun.
>
> Lew
On Sep 21, 10:33=A0pm, GarageWoodworks <[email protected]>
wrote:
> Ok. =A0I am making a horizontal mortiser and making up the details as I
> go along. =A0I want it to have X,Y and router up/down (z) degrees of
> freedom.
>
> I'm using roller skate bearings for the guides and I am hoping that
> they stay tight against the rails over time. (time will tell). =A0I want
> to use stuff that I have laying around for the parts.
>
> Comments, suggestions? =A0Let me have it.
>
> http://www.garagewoodworks.com/H-mortiser.php
Ok. I went to the hardware store and found a good deal on a couple
sets of drawer guides. So I think I am scrapping my bearing idea.
(Even though I thought it was pretty cool.)
Thanks for the input everyone!
On Mon, 27 Sep 2010 16:04:44 -0700 (PDT), Ferd Farkel <[email protected]>
wrote:
>On Sep 22, 3:27 pm, "CW" <[email protected]> wrote:
>> "Lew Hodgett" <[email protected]> wrote in message
>>
>> news:[email protected]...
>>
>> > "GarageWoodworks" wrote:
>>
>> >> I'm using roller skate bearings for the guides and I am hoping that
>> >> they stay tight against the rails over time. (time will tell).
>> > -----------------------------
>> > Roller skate bearings can hardly be considered "Precision" which you will
>> > require.
>>
>> Haven't been on skates in a while, have you?
>
>Bet he knows who Melanie is, though.
But his key certainly isn't new.
"GarageWoodworks" wrote:
> I'm using roller skate bearings for the guides and I am hoping that
> they stay tight against the rails over time. (time will tell).
-----------------------------
Roller skate bearings can hardly be considered "Precision" which you
will require.
Use the basic double sealed "203" ball bearing for your design.
There are more "203" (0.669" bore) bearings manufactured that all the
other size ball bearings in the world, thus it will be the lowest
price ball bearing available.
BTW, a basic "Water pump" bearing has possibilities for this
application, might want to look at it.
Have fun.
Lew
"CW" wrote:
> Haven't been on skates in a while, have you?
-------------------------------
And it's been even longer since I worked in a roller rink.
That said, don't think I would want to subject roller skate bearings
to a standard precision ball bearing high RPM test which is in the
order of 10,000 RPM.
Lew
On 2010-09-22 09:18:17 -0400, "Leon" <[email protected]> said:
> I have considered doing this on occasion. You are aware that there a
> few plans out there for building one? IIRC Shop Notes has a plan in
> one of there magazines from a few years back. IIRC it uses full
> extension drawer slides for the moving parts.
Issue 68, March 2003, FWIW.
On Sep 22, 3:27=A0pm, "CW" <[email protected]> wrote:
> "Lew Hodgett" <[email protected]> wrote in message
>
> news:[email protected]...
>
> > "GarageWoodworks" wrote:
>
> >> I'm using roller skate bearings for the guides and I am hoping that
> >> they stay tight against the rails over time. (time will tell).
> > -----------------------------
> > Roller skate bearings can hardly be considered "Precision" which you wi=
ll
> > require.
>
> Haven't been on skates in a while, have you?
Bet he knows who Melanie is, though.
On Sep 22, 4:36=A0pm, "Lew Hodgett" <[email protected]> wrote:
> "CW" wrote:
> > Haven't been on skates in a while, have you?
>
> -------------------------------
> And it's been even longer since I worked in a roller rink.
>
> That said, don't think I would want to subject roller skate bearings
> to a standard precision ball bearing high RPM test which is in the
> order of 10,000 RPM.
>
> Lew
My bearings would spin that high considering how some of those sk8r
chicks dress these days.
On Sep 22, 9:18=A0am, "Leon" <[email protected]> wrote:
> "GarageWoodworks" <[email protected]> wrote in message
>
> news:[email protected]...
>
> > Ok. =A0I am making a horizontal mortiser and making up the details as I
> > go along. =A0I want it to have X,Y and router up/down (z) degrees of
> > freedom.
>
> > I'm using roller skate bearings for the guides and I am hoping that
> > they stay tight against the rails over time. (time will tell). =A0I wan=
t
> > to use stuff that I have laying around for the parts.
>
> > Comments, suggestions? =A0Let me have it.
>
> >http://www.garagewoodworks.com/H-mortiser.php
>
> Good luck, seriousely...
>
> I have considered doing this on occasion. =A0You are aware that there a f=
ew
> plans out there for building one?
I hate using plans. I'm going to wing it and use "general" ideas from
stuff I see on line.
>=A0IIRC Shop Notes has a plan in one of
> there magazines from a few years back. =A0IIRC it uses full extension dra=
wer
> slides for the moving parts.
If the bearings fail to perform I am going to consider drawer slides
next. Should be an easy swap after everything is made.
On Wed, 22 Sep 2010 07:38:44 -0700 (PDT), GarageWoodworks
<[email protected]> wrote:
>On Sep 22, 10:25 am, Larry Jaques <[email protected]>
>wrote:
>> On Tue, 21 Sep 2010 19:33:13 -0700 (PDT), GarageWoodworks
>>
>> <[email protected]> wrote:
>> >Ok. I am making a horizontal mortiser and making up the details as I
>> >go along. I want it to have X,Y and router up/down (z) degrees of
>> >freedom.
>>
>> >I'm using roller skate bearings for the guides and I am hoping that
>> >they stay tight against the rails over time. (time will tell). I want
>> >to use stuff that I have laying around for the parts.
Good, tight ball-bearing glides aren't very expensive at all. I think
I gave $6 a pair for some 22-inchers at the local hardwood shop a few
years ago. They have no noticeable slop at all. I think you'll be
back to them soon.
>> >Comments, suggestions? Let me have it.
>>
>> >http://www.garagewoodworks.com/H-mortiser.php
>>
>> Aren't you worried about compression of the plywood in the area of
>> those bearings, Brian? It feels to me like a problem waiting to
>> happen.
>
>Not sure I understand your concern here. The rails are thicker than
>the bearings so the load from above is on the rails not the bearings.
>The rails will be waxed on the bottom. The bearings only contact the
>rails from the sides.
Oh. It looked like you had a picture of outtable roller bearings on
the bottom, which didn't track. I'll have to wait to see other pics
before I understand what you're doing. Are the rails UHMW poly, wood,
or what? Bearings as guides?
http://woodgears.ca/slot_mortiser/index.html
>> Really nice machine. This guy's good.
>
>The Woodgears one is really good. I plan on using some of his ideas
>in mine by looking at his photos.
I think he showed his entire build online somewhere. Good stuff.
--
Some people hear voices. Some see invisible people.
Others have no imagination whatsoever.
"Lew Hodgett" <[email protected]> wrote in message
news:[email protected]...
>
> "CW" wrote:
>
>> Haven't been on skates in a while, have you?
> -------------------------------
> And it's been even longer since I worked in a roller rink.
>
> That said, don't think I would want to subject roller skate bearings to a
> standard precision ball bearing high RPM test which is in the order of
> 10,000 RPM.
>
> Lew
Kmart skates, no. The high end stuff (like mine), no problem.
"Lew Hodgett" <[email protected]> wrote in message
news:[email protected]...
>
> "GarageWoodworks" wrote:
>
>> I'm using roller skate bearings for the guides and I am hoping that
>> they stay tight against the rails over time. (time will tell).
> -----------------------------
> Roller skate bearings can hardly be considered "Precision" which you will
> require.
Probably not the kind of skates that use a leather strap around the ankle
and a key to tighten the toe clamp. ;~)
On Wed, 22 Sep 2010 13:36:30 -0700, "Lew Hodgett"
<[email protected]> wrote:
>
>"CW" wrote:
>
>> Haven't been on skates in a while, have you?
>-------------------------------
>And it's been even longer since I worked in a roller rink.
>
>That said, don't think I would want to subject roller skate bearings
>to a standard precision ball bearing high RPM test which is in the
>order of 10,000 RPM.
Man, you skate --=FAST=--, Lew!
----
Somehow, I don't think his mortising table will move quite that fast.
--
Some people hear voices. Some see invisible people.
Others have no imagination whatsoever.
On Tue, 21 Sep 2010 19:33:13 -0700 (PDT), GarageWoodworks
<[email protected]> wrote:
>Ok. I am making a horizontal mortiser and making up the details as I
>go along. I want it to have X,Y and router up/down (z) degrees of
>freedom.
>
>I'm using roller skate bearings for the guides and I am hoping that
>they stay tight against the rails over time. (time will tell). I want
>to use stuff that I have laying around for the parts.
>
>Comments, suggestions? Let me have it.
>
>http://www.garagewoodworks.com/H-mortiser.php
Aren't you worried about compression of the plywood in the area of
those bearings, Brian? It feels to me like a problem waiting to
happen.
Most folks use ball-bearing drawer glides or LMBs.
http://www.familywoodworking.org/forums/showthread.php?t=3276
http://en.kendincos.net/video-jtvrfdfh-multi-slot-mortising-machine.html
http://woodgears.ca/slot_mortiser/index.html
Really nice machine. This guy's good.
http://www.lm76.com/ possible source for LMBs
--
Some people hear voices. Some see invisible people.
Others have no imagination whatsoever.
"GarageWoodworks" <[email protected]> wrote in message
news:[email protected]...
> Ok. I am making a horizontal mortiser and making up the details as I
> go along. I want it to have X,Y and router up/down (z) degrees of
> freedom.
>
> I'm using roller skate bearings for the guides and I am hoping that
> they stay tight against the rails over time. (time will tell). I want
> to use stuff that I have laying around for the parts.
>
> Comments, suggestions? Let me have it.
>
> http://www.garagewoodworks.com/H-mortiser.php
Good luck, seriousely...
I have considered doing this on occasion. You are aware that there a few
plans out there for building one? IIRC Shop Notes has a plan in one of
there magazines from a few years back. IIRC it uses full extension drawer
slides for the moving parts.
On 9/22/2010 1:20 AM, Lew Hodgett wrote:
> "GarageWoodworks" wrote:
>
>> I'm using roller skate bearings for the guides and I am hoping that
>> they stay tight against the rails over time. (time will tell).
> -----------------------------
> Roller skate bearings can hardly be considered "Precision" which you
> will require.
>
> Use the basic double sealed "203" ball bearing for your design.
>
> There are more "203" (0.669" bore) bearings manufactured that all the
> other size ball bearings in the world, thus it will be the lowest
> price ball bearing available.
>
> BTW, a basic "Water pump" bearing has possibilities for this
> application, might want to look at it.
Just so you're aware of it, Lou, if you take apart a typical modern
roller skate you'll find some flavor of 608 ball bearing. Any decent
skate shop will have 608-2RS in ABEC-7. While 203s may be cheaper, at
20 bucks for a set of 8 at skate-shop retail the 608s aren't going to
break the bank. And you can get them _much_ cheaper online.
On 9/22/2010 4:36 PM, Lew Hodgett wrote:
> "CW" wrote:
>
>> Haven't been on skates in a while, have you?
> -------------------------------
> And it's been even longer since I worked in a roller rink.
>
> That said, don't think I would want to subject roller skate bearings
> to a standard precision ball bearing high RPM test which is in the
> order of 10,000 RPM.
Go down to the skate shop, get a set, and give 'em a try.
"Lew Hodgett" <[email protected]> wrote in message
news:[email protected]...
>
> "GarageWoodworks" wrote:
>
>> I'm using roller skate bearings for the guides and I am hoping that
>> they stay tight against the rails over time. (time will tell).
> -----------------------------
> Roller skate bearings can hardly be considered "Precision" which you will
> require.
>
Haven't been on skates in a while, have you?