robland x31 and horizontal mortising ques

charlie b wrote:
> [email protected] wrote:
>
> snip
>
> > Looking at the Robland x31on the net and had a few queries. Could some
> > of the x31 gurus help me out?
>
> Does making the Pilgrimage to the factory in Brugge, Belgium, qualify
> me as a guru?

Yup, as also your webpage.

>
> > The mortising spindle seems to be mounted onto the same spindle as the
> > TS blade.
>
> Actually it's mounted to the end of the jointer/joiner- planer cutter
> head.
>
> >That would mean a speed of about 5000RPM (max 6000?).
>
> It's 5000 rpms.
>
> >Is this
> > enough to mortise cleanly?
>
> Spin it with a German TEFC true 3 hp reversible motor and it does.
> Clean has more to do with with the bit you use.

Good to know - I figured it must be but... wasnt sure if I was missing
something.


>
> > What sort of mortising bits would one use to
> > get a clean cut at this speed? (Especially since your typical router
> > goes at at least 15000RPM)
>
> Laguna has long spiral bits with notches/teeth along the spiral
> edges. They're "left handed" (cuts when turned CCW when viewed
> from the end) but the cutter head motor is reversible so you
> can use the more common "right hand" spiral bits or end mills.

Thanks - found it on their webpage.

>
> > Also, looking at pics on the net (of both robland and the inca), the
> > mortising bit seems to be held by a drill chuck. Is this true or is it
> > some sort of a collet? Can chucks take the rigors of mortising (in
> > particular the sideways pressure as the workpiece is moved)?
>
> Actually, it's a "V" chuck. There is a collet option available.
> The V chuck works fine if you don't abuse it - 1/2" deep
> passes aren't a good idea.
>

This is useful to know. The reason for the question is that I think I
can get hold of an xyz table, and can possibly mount it to a surface
planer (jointer?) and was wondering if I could push the idea to a
horizontal mortiser. And the reason to have a setup for horizontal
mortising is that it seems more stable and less noisy that using a
router.




> There's a yahoo group for the Robland X31 you might want
> to check out
>
> http://groups.yahoo.com/group/RoblandX-31/
>

Thanks, but i can afford a real robland in this part of the world!

> A member came up with a great jig that improves the mortising
> XYZ table and adds stock tilting - handy for chair mortises.
>
> You can e-mail me if you have more questions.
>
> > TIA
>
> No problem
>
> charlie b


Thanks for clearing things up - G

[email protected] wrote:

snip

> Looking at the Robland x31on the net and had a few queries. Could some
> of the x31 gurus help me out?

Does making the Pilgrimage to the factory in Brugge, Belgium, qualify
me as a guru?

> The mortising spindle seems to be mounted onto the same spindle as the
> TS blade.

Actually it's mounted to the end of the jointer/joiner- planer cutter
head.

>That would mean a speed of about 5000RPM (max 6000?).

It's 5000 rpms.

>Is this
> enough to mortise cleanly?

Spin it with a German TEFC true 3 hp reversible motor and it does.
Clean has more to do with with the bit you use.

> What sort of mortising bits would one use to
> get a clean cut at this speed? (Especially since your typical router
> goes at at least 15000RPM)

Laguna has long spiral bits with notches/teeth along the spiral
edges. They're "left handed" (cuts when turned CCW when viewed
from the end) but the cutter head motor is reversible so you
can use the more common "right hand" spiral bits or end mills.

> Also, looking at pics on the net (of both robland and the inca), the
> mortising bit seems to be held by a drill chuck. Is this true or is it
> some sort of a collet? Can chucks take the rigors of mortising (in
> particular the sideways pressure as the workpiece is moved)?

Actually, it's a "V" chuck. There is a collet option available.
The V chuck works fine if you don't abuse it - 1/2" deep
passes aren't a good idea.

There's a yahoo group for the Robland X31 you might want
to check out

http://groups.yahoo.com/group/RoblandX-31/

A member came up with a great jig that improves the mortising
XYZ table and adds stock tilting - handy for chair mortises.

You can e-mail me if you have more questions.

> TIA

No problem

charlie b