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JJ Hall

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Reply with quote  #1 
Several months ago I purchased several hundred 1" treaded wheels with a 1/4" axle hole. I started mounting the wheels on my axles (also 1/4") but some of the axle hole in the wheels were a true 1/4" and others were larger. I'd appreciate any suggestions on how to "shrink" the oversize axle holes. JJ Hall
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Reply with quote  #2 
Hullo JJ.

I share your annoyance with pre-made wheels (and with non-round dowels too BTW)!

I don't have a lot of experience with toy making, but up to now, what I've done with off-centre holes, or with holes that are too big, is to find a dowel that's a snug fit in the existing hole (if necessary you have to sand a larger dowel down to make a snug fit), then using normal white PVA wood working glue watered down about 50%, glue the new dowel into the hole. (The reason for watering down the glue is that if you have achieved a snug fit, you can be sure the glue gets into everything by capillary attraction).

When completely dry (I usually wait overnight 'cos the watered glue takes longer than normal to dry completely) cut off any excess with a fine-tooth saw, lightly sand, and then you're good to go with a hole of the correct diameter, and exactly in the centre! If at all possible, use either a drill press or at least a jig to ensure the new hole is at exactly 90 degrees.

HTH

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JJ Hall

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Reply with quote  #3 
Thanks for the reply. I'll try it out. JJHall
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Reply with quote  #4 

This is simple,

You make sure your hole in the wheel is round and at 90 Degrees

Make sure you dowel is round, if not make them round.

Cut the dowel to the length you want it.

With a scroll saw or fine saw, cut a slot (V shape) in the end of the dowel.

Slot length should be the depth of the hole in the wheel (wheel thickness).

With the grain running the same as the dowel.

Cut a wedge from a piece of wood (V shape) to go into the slot.

 (This is the same concept is the wedge in the end of a Hammer handle).

Glue the inside of the wheel and the slot,

Put the wheel on the dowel

Drive the wedge into the slot, at the end of the dowel

Let dry, trim, and sand

When dry you will not get it off.

Just like MAGIC

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