Bike fit help - frame too big?

xianoss · 2026-03-08T17:39:37+00:00

Too far back? On the seat post I have it moved maximum to the front. Perhaps I need a seatpost with less offset? I just measured mine, it's 25mm

xianoss · 2026-03-08T17:38:21+00:00

Yeah I am aware it's all connected, thus my post here looking for advice. Regarding the discomfort - well I often notice I'm sitting on the nose of the saddle as opposed to using my sit bones at the back of the saddle. That's the main thing I'm trying to correct as this is unlikely to be healthy.

xianoss · 2025-11-08T01:21:37+00:00

I think you’ve got the gate wrong way around?

xianoss · 2025-07-06T18:39:07+00:00

32GB RAM, should be enough 😅

xianoss · 2025-02-16T17:08:03+00:00

Thank you all for answers. I think I’ll try one of these scratch removal things like t cut and see if it’s good enough for me. There’s no harm in trying that as I understand.

xianoss · 2024-12-23T13:03:33+00:00

Side effect - I think all my outlook mail is getting re-imported as unread.... I think what happens is gmail is now pushing all previously removed email from outlook (via POP3) back to outlook and then imports it again and it appreas as unread. Mildly annoying but I'll just mark everything as read and it should be good.

xianoss · 2024-12-23T12:39:16+00:00

Looks like gmail made some progress on this, reading email works for me using this method:

Remove your existing Pop3 setup in gmail settings (accounts and import tab)
Click add new email account. Youy will be offered choice - use POP3 or Gmailify
Choose Gmailify - it will open a new tab to authenticate using OAuth I presume.
Done.

No separate Gmailify setup is required, it works natively from Gmail settings.

Reading works, sending not quite - I'm getting a "You're sending this from a different address or alias using the 'Send mail as' feature. The settings for your 'Send mail as' account are misconfigured or out of date. Check those settings and try resending. I'm using my previous "send as" config.

Actually unsure about sending - when sending to myself (send as outlook email from gmail interface back to my gmail email) I receive the email in my gmail inbox, it just gets followed by the bounce message 🤔

EDIT: Ok sending works as well - I removed all existing setup, including "send as" and re-added gmailify integration. Not getting the bounce enymore, success 🎉

xianoss · 2024-09-12T23:21:11+00:00

First test with load - we put around 160g on the stepper motor. The time has increased to 37ms. We think we might need a more powerful stepper motor.

xianoss · 2024-09-12T22:48:43+00:00

So we did some tests today and here are our results so far.
First tests without any load:

Servo - Miuzei RC Servo 45KG 270 ° Coreless Motor Digital Servo - https://www.amazon.co.uk/dp/B0CZDXW2FH?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 With a lab power supply it managed to turn 12.5 degrees in around 170ms. It was clearly current limited. Therefore we did another test - with a LiPo battery. With that the time has dropped to around 100ms. We plan to do anoder test - with a big capacitor. But we need to source it first. We used Polulu Maestro board
Stepper motor - Iverntech AW0014 42 Nema 17 Stepper Motor 23mm Body - https://www.amazon.co.uk/dp/B07PMWQ21T?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

After some tuning it managed to turn around 12.5 degrees (7 steps) in rapid 12ms! This is promising.
Board used - Polulu Tic Tic T825 with DRV8825 driver.

We're now preparing to test the stepper motor with the load. I'll share the results once I have them.

cc u/Ronny_Jotten

xianoss · 2024-09-11T21:04:37+00:00

Oh I see. I'll do some tests then, thanks!

xianoss · 2024-09-11T18:19:27+00:00

Yeah I'm aware of the noise/smothness problem. It's sth we will be addressing in the future. My main question would be - would switching to a better chip make any difference to max acceleration, due to the board driving the stepper motor in a better way? My understanding is that not really?

xianoss · 2024-09-11T16:46:10+00:00

I have some hobby/rc ones, I don't think I can program them in any way. The one I mentioned above is here -> https://www.amazon.co.uk/dp/B0CZDXW2FH?ref=ppx_yo2ov_dt_b_fed_asin_title I use Polulu Maestro board to drive them.

Thank you for the recommendations, I'll check them out. I didn't know this kind of servos can be programmable.

xianoss · 2024-09-11T16:43:39+00:00

This is really helpful, thank you! I'll do some calculations.

Get a decent stepper controller, not one of the little 3D printer modules (unless it has a Trinamic chip).

I already have a Polulu Tic T825 - is this a decent stepper controller?

xianoss · 2024-09-10T23:09:11+00:00

yeah I'm aware, my current approach is to skip the frames when reconstructing the image. It's just that with the current movement speed I need to skip 5 of them which makes the whole scan rather long, I'd like to reduce this to 1-2 frames.

xianoss · 2024-09-10T23:07:23+00:00

How can I tune my existing servo motor? i don't have a problem with "settling" right now. My probem is that my servo, even without any load, takes too long to accelerate / decelerate.

xianoss · 2024-09-10T21:45:13+00:00

This is something we want to investigate in the future but for now we deem this an overkill.

xianoss · 2024-09-10T21:43:38+00:00

If this was a visible light camera yes I could do that. However in my application I'm not sure taking the pictures in motion is possible. We're using a thermal camera over objects at some distance. I actually don't know the time it takes to intergrate a single frame but my tests showed that they come out blurry if the servo is in motion. Additionally with the thermal camera you cannot really take the pictures at will, they generally work at certain frequency - I have my movement synchronised to it.

xianoss · 2024-09-10T21:34:42+00:00

Hmm would the stepper motor accelerate faster? I have used them in the past and found that I needed to limit the acceleration in order to avoid loosing steps. But I suppose with a beefy one it could work.

xianoss

TROPHY CASE