adjustable hamster
Printed From: Kiwi Airgunners
Category: Technical
Forum Name: Pauly's Technical Area
Forum Description: Technical information, Modifications and DIY projects are all in here
URL: www.kiwiairgunners.co.nz/forum_posts.asp?TID=249
Printed Date: 29 Apr 2024 at 11:36am
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Topic: adjustable hamster
Posted By: nunga
Subject: adjustable hamster
Date Posted: 25 Feb 2016 at 10:34am
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Well after finally getting my scope problems sorted and dropping the power of the TX down to 12fpe and new click charts sorted i had my first shoot with it over the weekend. The gun is right on the money now and it shoots like a dream. Only problem i am finding is the hamster is only aiding my shooting in the sitting position it is at a good height and my back is not bent over and it feels good. However when kneeling and standing it is totally different. The gun is very front end heavy and it is hard to keep it still when shooting and i cant seem to find a comfortable position and as result i am missing these shots. So. I will make a new adjustable hamster and see if this helps. I will start on it today and see if i can get it ready by Sunday to test. ------------- 2nd place HP springer - WFTF World Championships 2014 |
Replies:
Posted By: nunga
Date Posted: 25 Feb 2016 at 4:39pm
I started off with some 60mm solid bar. Machine down to size and drill and bore for the fittings.   Next i will start on the arms ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: nunga
Date Posted: 26 Feb 2016 at 1:35pm
Finished the first part of it now. so on with making the arms next. ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: nunga
Date Posted: 26 Feb 2016 at 4:11pm
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Well its been a long and busy day but i did manage to get it finished and working. I didnt have enough time to take lots of photos cause i wanted to get it done. But for the arms i used flat bar 40x10x200 long i used my alloy partoff disk to get the general shape i wanted then set it up in the rotary table to make it round and mill the groves in for the gears. It looks and feels good now so testing and fine tuning will be tomorrow.    ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: Pauly5
Date Posted: 27 Feb 2016 at 8:18am
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Good on ya Ian, looks great, nice work! I had tried a "Ram mount", which is like a ball joint mounting system. It is adjustable, but I feel that for a springer you need a rigid fitting. I will be interested to see if the POI changes slightly between the sitting nd standing settings. The ram mount had a little bit of movement/flex that I felt effected accuracy enough to bother me. Pcp wouldn't be a problem, but it's that whole harmonic balance type of thing I reckon. ------------- |
Posted By: nunga
Date Posted: 27 Feb 2016 at 8:27am
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Thanks, I did try a few shots through this morning to see how it goes and i did run into one problem right away. The gun wont cock if the hamster is extended out because the cocking lever hits it. So i need to move it back each time i load...can i be bothered doing this each time? who knows...i will find out next FT shoot i suppose. ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: Pauly5
Date Posted: 27 Feb 2016 at 11:29am
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What if you put a stop so it can't be extend into the path of the lever? Would save guessing. ------------- |
Posted By: Pauly5
Date Posted: 28 Feb 2016 at 12:06pm
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How did you go? ------------- |
Posted By: nunga
Date Posted: 28 Feb 2016 at 4:32pm
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Had a tester at North Harbor today, i think it will be ok if i machine a slot into the wood part of it so the cocking bar doesnt hit it. but it worked like a dream so should be sweet once ive finished mucking about :) ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: Pauly5
Date Posted: 29 Feb 2016 at 7:34am
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Great! When do they go on sale? ------------- |
Posted By: nunga
Date Posted: 29 Feb 2016 at 9:03am
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Ill be showing it off next round of the GP. but if you want one let me know :) ------------- 2nd place HP springer - WFTF World Championships 2014 |
Posted By: Shaqa
Date Posted: 03 Mar 2016 at 7:08am
| Nice work Ian! |