Mount for a Makita RT0701

[WillAdams]

Got one of these for Father's Day.

Was hoping it'd fit in the mounts I'd made for my Harbor Freight 1/4" Trim Router --- not quite:

- diameter is close --- I measured the Makita as 2.55" (64.77mm) --- but the Makita is a cylinder save for a keyway and the notches for depth adjustment --- the HF14TM has two flats which enable it to just barely fit in-between the bolts in a Universal Spindle Mount (which have ~63mm of space between them)

(I also realized that the HF14TM is a metal-bodied router w/ a rubberized paint --- might've tried the Stewart Mac 1/4"--1/8" collet adapter instead if I'd realised that)

So, I need a new set of mounts --- I want to use this on my SO1 and need to save as much space as I can, so, I'll try to do the re-design in this thread, a little bit at a time, documenting the process and hopefully people will find it easier to follow / duplicate and improve.

[WillAdams]

First, I placed the parts in relation to each other as space-efficiently as I could:

01-placement.png (8.79 KiB) Viewed 10136 times

large circle is the router, I imported a MakerSlide profile into my drawing program and the small circle is the vacuum hose

The vacuum isn't rotated as high up as it could be so as to allow for the curvature of the dust shoe.

[WillAdams]

Next, we draw in geometry which defines the different features which the mount will require:

02-outlines.png (18.34 KiB) Viewed 10131 times

- offset the inner features (vacuum and router) by the desired thickness of the structure (8mm) and union to get the joined circles
- draw in the outlines and channel for the clamp section
- draw in channels for the bolts and washers aligned w/ the slots on the Makerslide
- draw in an outline which aligns w/ the circles to define the structure which connects to the Makerslide

[WillAdams]

Then we union, subtract and add curves until we arrive at:

03-mount.png (12.71 KiB) Viewed 10035 times

[WillAdams]

Start over w/ the circles for the Makita router and vacuum, dupe, unrotate, put on new layer, offset the paths, union, add appropriate curves and re-shape to accommodate magnets:

04-dustshoe.png (12 KiB) Viewed 10035 times

EDIT: Fixed the collet nut hole to be 30mm.

[WillAdams]

Need a way to transition from the bottom mount to the dust shoe, but that needs some more thought and measuring, so decided to knock out the top mount. Decided I really liked Targus's idea of adding a half-cut for the vacuum connection, so:

05-topmount.png (10.05 KiB) Viewed 10123 times

The extra circles are for zip ties to hold the extension in place.

[WillAdams]

As noted, there needs to be a spacer in-between the bottom mount and the dust shoe. It needs to:

- have magnets to match those in the dust shoe
- provide a 3mm tall, ~35mm wide slot which the collet wrench fits into (considered a keyway w/ a matching key which would depress the button for holding the collet, but was concerned that I'd forget it, leave it in place and ruin the router when I started it.
- provide a suitable amount of spacing and ventilation

I've decided I'll go w/ my idea of stacking washers in-between the spacer and the bottom mount --- it simplifies the machining and will hopefully provide adequate ventilation --- the push-button mechanism at the bottom of the Makita makes it a sufficiently complex shape that it doesn't seem worth doing the extra structure I made for the HF14TM.

Adding the slot also resolved the placement of the magnets --- I used five on the previous version which I think was overkill --- hopefully four would've been too many also and three is just right:

06-spacer.png (15.02 KiB) Viewed 10035 times

EDIT: For some reason I decided that it would be a good idea to inset this and make it smaller, maybe because I was planning on pushing the hose clamp up so that it aligns w/ the bottom of the dust shoe rather than the top --- this will save a little bit of vertical travel / space.

[WillAdams]

I then made all the layers viewable, shifted the magnets around to align them, tweaked the outlines / paths to try to make the curves more regular / symmetrical and pleasing:

07-makita_holder.png (25.81 KiB) Viewed 10036 times

Next will be setting all the holes for bolts &c., then duping everything, arranging it space-efficiently, mirror-imaging the top / bottom pair so that the countersinks &c. are on the right side for machining, then CAM.

[WillAdams]

Draw in suitably sized circles for the countersinks for the washers, magnets, &c. and we have:

08-arranged.png (49.61 KiB) Viewed 10023 times

[tekadept]

Nice, can't wait to see them once machined. if they turn out allright hope you upload the files so I can have a crack at them as well