JMay
(Senior Member)


Registration Date: 22nd-Apr-19
Date of Birth: Not Specified
Local Time: 9th-Feb-25 at 09:48 PM
Status: Offline

JMay's Forum Info
Registration Date:
22nd-Apr-19
Last Visit:
10 hours ago 11:44 AM
Total Posts:
223 (0.11 posts per day | 0.53 percent of total posts)
(Find All Posts)
Total Threads:
21 (0.01 threads per day | 0.47 percent of total threads)
(Find All Threads)
Time Spent Online:
1 Week, 2 Days, 2 Hours
Total Likes Received: 510 (0.24 per day | 0.89 percent of total 57367)
(Find All Threads Liked ForFind All Posts Liked For) Total Likes Given: 144 (0.07 per day | 0.25 percent of total 57412)
(Find All Liked ThreadsFind All Liked Posts)

Additional Info About JMay
Gender:
Male
JMay's Signature
Mr Fit for Function.
JMay's Most Liked Post
Post Subject Numbers of Likes
Simple 3dp Tyre Grinder 12
Thread Subject Forum Name
Simple 3dp Tyre Grinder 3DP
Post Message
As the title states a simple tyre grinder that is mostly 3dp with the addition of some parts obtainable from the local hardware store and the slot spares box.

[attachment=19935]

The motor pod and axle assy pivots on a 5mm rod and the height above the sanding disc or paper is controlled by the knob (with a nut insert) which has a bolt from the base up through it and held under compression by a spring. The rod has a clip ring so the pivot can be withdrawn and the pod removed for servicing etc.

Needs a low rpm boxer motor (NC5 here) with good torque 9:30 gearing and single flange bearings. 



[attachment=19938]

[attachment=19936]

[attachment=19937]

It is not a Hudy but it will grind a pair of tyres equally at a pace determined by the power supply and motor heating. 

STL files below.

Cheers JMay.

EDIT: From feedback I revised the Pod to take complete inline axle assemblies that use double flange bearings avoiding the need to remove wheels from knurled axles.  Revised STL file below. 

[attachment=34422]

Revised Pod with bearing retainer STL file

[attachment=34421]