{"data":{"make":{"id":"440226","created":"2022-10-24T17:29:30.263412+00:00","edited":null,"deleted":null,"isMake":true,"printer":{"id":"1","name":"Prusa MK3/S/S+","__typename":"PrinterTypeType"},"parent":null,"author":{"id":"1121","handle":"Johny69","verified":false,"dateVerified":null,"publicUsername":"Johny69","avatarFilePath":"media/auth/avatars/3a/3a17b522-affb-4b16-9ea9-96a2b3b6037d.jpg","badgesProfileLevel":{"profileLevel":17,"__typename":"BadgesProfileLevelType"},"__typename":"UserType"},"images":[{"id":"319739","filePath":"media/comment_images/aa/900448-ad6a-4d39-9f41-87ca032b030b/img_6333-copy.jpg","rotation":0,"__typename":"CommentImageType"}],"mentions":[],"text":"Hi! This is perfect! had to make a couple small modifications: my switch was a bit larger and power connector, plus the tool holder did not fit the nut that i found. Ill upload additional files if so others can use the nuts as well.","rating":5,"likesCount":2,"liked":null,"membershipAgeMonths":null,"modelData":{"model":{"id":"274346","ratingAvg":"4.6666666667","ratingCount":6,"__typename":"PrintType"},"__typename":"ModelDataType"},"membershipTier":null,"__typename":"PrintCommentType","model":{"eligibleForNomination":false,"id":"274346","slug":"brass-prep-station-for-reloading","name":"Brass Prep Station For Reloading","authorship":null,"club":false,"excludeCommercialUsage":false,"price":null,"eduProject":null,"ratingAvg":"4.6666666667","myRating":null,"ratingCount":6,"description":"

Summary

Brass Prep Station

For the gear box plates, recommend a 20% infill and 3-4 perimeters or walls.

For the gears (main helical gear and small helical gears), 4 perimeters and 70% infill plus 5 top and bottom layers.

For the housing 2-3 perimeters and 20% infill is a-ok.

For the tool posts, 4 perimeters.

For the gear shafts, 4 perimeters.

I included two types of tool posts, the main tools posts for the 8-32 ez-look inserts and then the \u201chex\u201d tool post which you can insert a \u00bc\" drive hex bit into.

There are two gearboxes you can print:

a 400RPM gearbox
and a 250RPM gearbox

I highly recommend the 250RPM gearbox as it is quite a bit higher in torque.

Anything marked with a X6 you will need to print 6 of.

This is the parts list needed:

https://www.amazon.ca/gp/product/B071GTTSV3/ - 12v 200 RPM Greartisan style motor with 31mm bolt circumference.

https://www.amazon.ca/gp/product/B09HV9HZQ6 - The bearings are 22OD X 8MM ID X 7MM thick skate board bearings, you need 12 of them.

https://www.amazon.ca/gp/product/B08334N261/ - This the main gear hub for connecting the hub to the motor. You need 1 of these.

https://www.amazon.ca/gp/product/B081YGD8LY/ - This is the fan I used, it is a 60x60mm x 15mm thick fan with a 50mm bolt offset pattern. It is a 12v fan.

https://www.amazon.ca/gp/product/B07T1W7S1C/ - This is the power supply I used. 12v 2a power supply with adapter. The housing is designed specifically for this adapter to fit in to the case so it's plug and play.

https://www.amazon.ca/gp/product/B083ZDFYKT/ - I used the m5 inserts out of this kit to bolt the gear box to the main housing.

https://www.amazon.com/dp/B08P1SKYCB - I used these 8-32 brass inserts for the tool posts. The part number from EZ-LOK is FL-832-HI.

The Switch is a 8mm X 14mm micro switch but you could modify the box to fit a bigger one if needed.

You will also need:

6 - M3x0.5 thread pitch bolts for the motor.
2-4 - M3x0.5 thread pitch bolts coupler to main gear
2-4 - M3x0.5 thread pitch nuts for the coupler to main gear
4 - M5x0.8 thread pitch bolts to bolt the main housing to the gear box
3 - M5x0.8 x 30mm tapered head bolts to hold the gear housing together.
3 - M5x0.8 lock nuts

In lieu of the last two bits of hardware (3xM5 bolts and nuts) you can use 10-24x1.5\" bolts and nuts.

The fan came with hardware for me but you'd posisbly need 4 bolts for that too.

Happy printing!!!

Print Settings

Printer:

Mk3S

Supports:

Doesn't Matter

Resolution:

0.2mm for everything

Infill:

20-70% depending on the part

Filament brand:

ESUN and Overture

Filament material:

PLA

Notes:

You may need support for the gear shafts, and the housing for the fan vent holes. Otherwise it's all print and install.

Post-Printing

You may need to adjust some of the part fitment to get it all to go together as each printer will vary.

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Brass Prep Station For Reloading

Brass Prep Station For Reloading

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