{"id":5822,"date":"2023-03-29T09:10:03","date_gmt":"2023-03-29T07:10:03","guid":{"rendered":"https:\/\/www.runstenracing.se\/?p=5822"},"modified":"2023-03-29T09:10:03","modified_gmt":"2023-03-29T07:10:03","slug":"re-assembly-of-motor-and-frame-preparation","status":"publish","type":"post","link":"https:\/\/www.runstenracing.se\/?p=5822","title":{"rendered":"Re-assembly of motor and frame preparation"},"content":{"rendered":"\n

So, since the magnets in the rotor was super strong I’ve been a bit nervous about re-assembling the motor, but I got an idea..<\/p>\n\n\n\n

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With three M5 all-thread rods and a few nuts..<\/figcaption><\/figure>\n\n\n\n
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Threaded the rods into the top part of the motor and added nuts at a similar height on all rods..<\/figcaption><\/figure>\n\n\n\n
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These would then support the stator allowing me to gently let it all the way down over the rotor without slamming together.<\/figcaption><\/figure>\n\n\n\n
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To further protect the rotor I inserted a sheet of OH plastic in the air gap between rotor and stator. This is totally unnecessary but still..<\/figcaption><\/figure>\n\n\n\n
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So, now it was just a matter of easing the stator down all the way. Most of the way I could just turn the nuts by hand but it’s the last centimeters that are hardest to control but the three-nut-solution made it super easy.<\/p>\n\n\n\n

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I let the motor sit for the liquid seal to cure for a day or two before adding some conformal coating to the hall sensor circuit board and to the thermistor wires to keep them out of the way of the rotor. Then I added the bottom cover and it was all done. Now I just need to do the same to my second motor.<\/figcaption><\/figure>\n\n\n\n

Frame preparation<\/strong><\/p>\n\n\n\n

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Before rebuilding the bike I wanted to get it painted and since a friend of mine has a complete powder coating setup we’re going to powder coat the entire thing. To do that I need to do some preparation to the frame and since it’s a bit cumbersome I decided to powder coat both my frames at the same time. The paint that’s on these frames are sketchy at best..<\/figcaption><\/figure>\n\n\n\n
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I’m going to make a video of the entire build of this second bike. The first step in preparing the frame is plugging all the holes in the battery box. I simply welded all the smaller holes and made inserts for the larger ones.<\/figcaption><\/figure>\n\n\n\n
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I drilled and tapped the mounting holes for the motor mount.<\/figcaption><\/figure>\n\n\n\n
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After doing a bit of cutting and welding the atmosphere in my workshop is toxic, to say the least. I need to build a filtering solution to be able to breathe while working.<\/figcaption><\/figure>\n\n\n\n
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After welding the subframe the second frame is ready for sand blasting and paint. I decided not to weld the mount for the rear shock onto the frame. Instead I’m going to make a bolt-on solution where I make a mount that bolts onto the frame at the right height. This will make the build and installation easier and I can drill the holes later when assembling the bike. <\/figcaption><\/figure>\n\n\n\n
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So, now all the parts are ready for sand blasting..<\/figcaption><\/figure>\n\n\n\n
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I’ve never used a proper sand blaster before but it turns out some of the paint that’s on the frame is real tough to get rid of. I spent a good 4 hours last night trying to strip the paint from all the parts and didn’t even finish two parts. Today I’m going to rough the paint up with a grinding wheel before sand blasting, hopefully this’ll let the blaster work better on the parts. <\/figcaption><\/figure>\n\n\n\n

To be continued..<\/p>\n","protected":false},"excerpt":{"rendered":"

So, since the magnets in the rotor was super strong I’ve been a bit nervous about re-assembling the motor, but I got an idea.. So, now it was just a matter of easing the stator down all the way. Most … Forts\u00e4tt l\u00e4sa →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93],"tags":[],"_links":{"self":[{"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=\/wp\/v2\/posts\/5822"}],"collection":[{"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5822"}],"version-history":[{"count":1,"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=\/wp\/v2\/posts\/5822\/revisions"}],"predecessor-version":[{"id":5839,"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=\/wp\/v2\/posts\/5822\/revisions\/5839"}],"wp:attachment":[{"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.runstenracing.se\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}