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Alexis thank you - Printable Version

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Alexis thank you - Anthony B - 23rd-Jul-21

A while back I ordered motors from China, including one that was 6-12 volt, high revving and small. 

Issue was diameter of armature shaft. 1mm .  Where to get pinions. 

Alexis very kindly offered to print some for me. They are awesome and with some widening of the hole they fitted perfectly. 

Many thanks!!

[attachment=16479]

[attachment=16480]

Now I need to organise motor mounts.

RE: Alexis thank you - Scuderia_Turini - 23rd-Jul-21

Seconding the compliment to Alexis, he is an enthusiast helping enthusiasts.

The subject of pinions for 1mm motor shafts came up in this week's world-wide slot car chat. These tiny motors are becoming popular, although they can be a bit "wild". A source of motors and pinions was identified as "Lucky Bob", based in Milwaukee, USA. Their web-site is a bit complex so an email is probably easiest - http://www.lucky-bobs-slot-cars.com/ 

Leo

RE: Alexis thank you - OXO cube - 23rd-Jul-21

found these on the bay that i used for the 1mm shaft motors 
Pinion Gear 8/9/10 1mm ID | eBay
used these for a 1/43 proxy i entered 
just an fyi

kev

RE: Alexis thank you - woodcote - 23rd-Jul-21

Lucky Bob's is the HO emporium most of us UK HO racers use - another is JAGs Hobbies. If there are a few bits you need, there's usually an order pending - so just ask.

However, there's also Barry at Slot Cars Direct in Derby - he is the go-to guy for HO in the UK. In terms of pinions to fit a 1mm shaft, you're looking at: The new Micro Scalextric chassis also has the FN20 motor which runs great at 9 to 12 volts. No parts are available separately, but a rolling chassis would give you the motor, pinion and crown gear. More about the Micro chassis here: https://slotracer.online/community/showthread.php?tid=69

There's also the older HO open cans - which were standard in the old Micro cars. Barry sells superior AFX versions of these. There have been used in a few 1/32 models over the years. The 1.5mm diameter shaft takes a standard HO pinion and the motors are less 'wild' to drive.

RE: Alexis thank you - Mazda - 23rd-Jul-21

I agree with Andy about Barry at Slotcarsdirect. He is very helpful and post’s items the same day, but he is on holiday as from today for two weeks.

RE: Alexis thank you - Anthony B - 24th-Jul-21

Thanks for the info all

A question as I have no experience with HO parts - if one used the HO pinion - what contrates do you use to match the pitch?

RE: Alexis thank you - woodcote - 24th-Jul-21

Good question. HO contrate / crown gears are naturally smaller in diameter (8 to 11mm) and fit a 1.5mm diameter axle (Tomy AFX is 1.55mm).

They are available in 20 to 27 teeth - the standard ratio in most RTR HO cars is 7:25.

Most HO pinions are 4mm in diameter, plastic and have 7 or 8 teeth. For the 1mm shaft, your only choice is 7 teeth (unless Viper produce an 8T - which they might).

For a 1.5mm shaft you can also find 7, 8 and 9 teeth in steel and 8 to 12 in brass. Metal crowns are available.

The widest selection are the Wizzard gears on Lucky Bob's site here. Bob is also a veteran 1/24 scale racer, so worth asking.